1
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Chen H, Liu C, Xu J, Maxwell A, Zhou W, Yang Y, Zhou Q, Bati ASR, Wan H, Wang Z, Zeng L, Wang J, Serles P, Liu Y, Teale S, Liu Y, Saidaminov MI, Li M, Rolston N, Hoogland S, Filleter T, Kanatzidis MG, Chen B, Ning Z, Sargent EH. Improved charge extraction in inverted perovskite solar cells with dual-site-binding ligands. Science 2024; 384:189-193. [PMID: 38603485 DOI: 10.1126/science.adm9474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/14/2024] [Indexed: 04/13/2024]
Abstract
Inverted (pin) perovskite solar cells (PSCs) afford improved operating stability in comparison to their nip counterparts but have lagged in power conversion efficiency (PCE). The energetic losses responsible for this PCE deficit in pin PSCs occur primarily at the interfaces between the perovskite and the charge-transport layers. Additive and surface treatments that use passivating ligands usually bind to a single active binding site: This dense packing of electrically resistive passivants perpendicular to the surface may limit the fill factor in pin PSCs. We identified ligands that bind two neighboring lead(II) ion (Pb2+) defect sites in a planar ligand orientation on the perovskite. We fabricated pin PSCs and report a certified quasi-steady state PCE of 26.15 and 24.74% for 0.05- and 1.04-square centimeter illuminated areas, respectively. The devices retain 95% of their initial PCE after 1200 hours of continuous 1 sun maximum power point operation at 65°C.
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Affiliation(s)
- Hao Chen
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Cheng Liu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Jian Xu
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Aidan Maxwell
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Wei Zhou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Yi Yang
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Qilin Zhou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Abdulaziz S R Bati
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Zaiwei Wang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Lewei Zeng
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Junke Wang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Peter Serles
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
| | - Yuan Liu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Sam Teale
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Yanjiang Liu
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada
| | - Muzhi Li
- Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85281, USA
| | - Nicholas Rolston
- Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85281, USA
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Tobin Filleter
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
| | | | - Bin Chen
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Zhijun Ning
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Edward H Sargent
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, USA
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2
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Gao Y, Xiao Z, Cui M, Saidaminov MI, Tan F, Shang L, Li W, Qin C, Ding L. Asymmetric Π-Bridge Engineering Enables High-Permittivity Benzo[1,2-B:4,5-b']Difuran-Conjugated Polymer for Efficient Organic Solar Cells. Adv Mater 2024; 36:e2306373. [PMID: 37703387 DOI: 10.1002/adma.202306373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/10/2023] [Indexed: 09/15/2023]
Abstract
Organic solar cells (OSCs) exhibit complex charge dynamics, which are closely correlated with the dielectric constant (ɛr ) of photovoltaic materials. In this work, a series of novel conjugated copolymers based on benzo[1,2-b:4,5-b']difuran (BDF) and benzotriazole (BTz) is designed and synthesized, which differ by the nature of π-bridge from one another. The PBDF-TF-BTz with asymmetric furan and thiophene π-bridge demonstrates a larger ɛr of 4.22 than PBDF-dT-BTz with symmetric thiophene π-bridge (3.15) and PBDF-dF-BTz with symmetric furan π-bridge (3.90). The PBDF-TF-BTz also offers more favorable molecular packing and appropriate miscibility with non-fullerene acceptor Y6 than its counterparts. The corresponding PBDF-TF-BTz:Y6 OSCs display efficient exciton dissociation, fast charge transport and collection, and reduced charge recombination, eventually leading to a power conversion efficiency of 17.01%. When introducing a fullerene derivative (PCBO-12) as a third component, the PBDF-TF-BTz:Y6:PCBO-12 OSCs yield a remarkable FF of 80.11% with a high efficiency of 18.10%, the highest value among all reported BDF-polymer-based OSCs. This work provides an effective approach to developing high-permittivity photovoltaic materials, showcasing PBDF-TF-BTz as a promising polymer donor for constructing high-performance OSCs.
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Affiliation(s)
- Yueyue Gao
- Key Laboratory of Photovoltaic Materials, School of Future Technology, Henan University, Kaifeng, 475004, P. R. China
| | - Zuo Xiao
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Minghuan Cui
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Makhsud I Saidaminov
- Department of Chemistry, Department of Electrical & Computer Engineering and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, British Columbia, V8P 5C2, Victoria, 3010, Canada
| | - Furui Tan
- Key Laboratory of Photovoltaic Materials, School of Future Technology, Henan University, Kaifeng, 475004, P. R. China
| | - Luwen Shang
- Key Laboratory of Photovoltaic Materials, School of Future Technology, Henan University, Kaifeng, 475004, P. R. China
| | - Wanpeng Li
- Key Laboratory of Photovoltaic Materials, School of Future Technology, Henan University, Kaifeng, 475004, P. R. China
| | - Chaochao Qin
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
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3
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Gao H, Xiao K, Lin R, Zhao S, Wang W, Dayneko S, Duan C, Ji C, Sun H, Bui AD, Liu C, Wen J, Kong W, Luo H, Zheng X, Liu Z, Nguyen H, Xie J, Li L, Saidaminov MI, Tan H. Homogeneous crystallization and buried interface passivation for perovskite tandem solar modules. Science 2024; 383:855-859. [PMID: 38386724 DOI: 10.1126/science.adj6088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 12/26/2023] [Indexed: 02/24/2024]
Abstract
Scalable fabrication of all-perovskite tandem solar cells is challenging because the narrow-bandgap subcells made of mixed lead-tin (Pb-Sn) perovskite films suffer from nonuniform crystallization and inferior buried perovskite interfaces. We used a dopant from Good's list of biochemical buffers, aminoacetamide hydrochloride, to homogenize perovskite crystallization and used it to extend the processing window for blade-coating Pb-Sn perovskite films and to selectively passivate defects at the buried perovskite interface. The resulting all-perovskite tandem solar module exhibited a certified power conversion efficiency of 24.5% with an aperture area of 20.25 square centimeters.
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Affiliation(s)
- Han Gao
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Ke Xiao
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Renxing Lin
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Siyang Zhao
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Wenliang Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Sergey Dayneko
- Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada
| | - Chenyang Duan
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Chenglong Ji
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Hongfei Sun
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Anh Dinh Bui
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, Australian National University, Canberra, NSW 2600, Australia
| | - Chenshuaiyu Liu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Jin Wen
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Wenchi Kong
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Haowen Luo
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Xuntian Zheng
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Zhou Liu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Hieu Nguyen
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, Australian National University, Canberra, NSW 2600, Australia
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Ludong Li
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | | | - Hairen Tan
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
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4
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Lu J, Shao B, Huang RW, Gutiérrez-Arzaluz L, Chen S, Han Z, Yin J, Zhu H, Dayneko S, Hedhili MN, Song X, Yuan P, Dong C, Zhou R, Saidaminov MI, Zang SQ, Mohammed OF, Bakr OM. High-Efficiency Circularly Polarized Light-Emitting Diodes Based on Chiral Metal Nanoclusters. J Am Chem Soc 2024; 146:4144-4152. [PMID: 38315569 PMCID: PMC10870708 DOI: 10.1021/jacs.3c13065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/03/2024] [Accepted: 01/18/2024] [Indexed: 02/07/2024]
Abstract
Circularly polarized light-emitting diodes (CP-LEDs) are critical for next-generation optical technologies, ranging from holography to quantum information processing. Currently deployed chiral luminescent materials, with their intricate synthesis and processing and limited efficiency, are the main bottleneck for CP-LEDs. Chiral metal nanoclusters (MNCs) are potential CP-LED materials, given their ease of synthesis and processability as well as diverse structures and excited states. However, their films are usually plagued by inferior electronic quality and aggregation-caused photoluminescence quenching, necessitating their incorporation into host materials; without such a scheme, MNC-based LEDs exhibit external quantum efficiencies (EQEs) < 10%. Herein, we achieve an efficiency leap for both CP-LEDs and cluster-based LEDs by using novel chiral MNCs with aggregation-induced emission enhancement. CP-LEDs using enantiopure MNC films attain EQEs of up to 23.5%. Furthermore, by incorporating host materials, the devices yield record EQEs of up to 36.5% for both CP-LEDs and cluster-based LEDs, along with electroluminescence dissymmetry factors (|gEL|) of around 1.0 × 10-3. These findings open a new avenue for advancing chiral light sources for next-generation optoelectronics.
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Affiliation(s)
- Jianxun Lu
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Bingyao Shao
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ren-Wu Huang
- Key
Laboratory of Crystalline Molecular Functional Materials, Henan International
Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis
Center, and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, China
| | - Luis Gutiérrez-Arzaluz
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Division
of Physical Science and Engineering, Advanced Membranes and Porous
Materials Center (AMPM), King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom
of Saudi Arabia
| | - Shulin Chen
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Zhen Han
- Key
Laboratory of Crystalline Molecular Functional Materials, Henan International
Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis
Center, and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, China
| | - Jun Yin
- Department
of Applied Physics, The Hong Kong Polytechnic
University, Hong Kong 999077, China
| | - Hongwei Zhu
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Sergey Dayneko
- Department
of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, Canada V8P 5C2
| | - Mohamed Nejib Hedhili
- The Imaging
and Characterization Core Lab, King Abdullah
University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Xin Song
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Peng Yuan
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Chunwei Dong
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Renqian Zhou
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Makhsud I. Saidaminov
- Department
of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, Canada V8P 5C2
| | - Shuang-Quan Zang
- Key
Laboratory of Crystalline Molecular Functional Materials, Henan International
Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis
Center, and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, China
| | - Omar F. Mohammed
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Division
of Physical Science and Engineering, Advanced Membranes and Porous
Materials Center (AMPM), King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom
of Saudi Arabia
| | - Osman M. Bakr
- Division
of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
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5
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Najarian AM, Vafaie M, Sabatini R, Wang S, Li P, Xu S, Saidaminov MI, Hoogland S, Sargent EH. 2D Hybrid Perovskites Employing an Organic Cation Paired with a Neutral Molecule. J Am Chem Soc 2023; 145:27242-27247. [PMID: 38061040 DOI: 10.1021/jacs.3c12172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Two-dimensional (2D) hybrid perovskites harness the chemical and structural versatility of organic compounds. Here, we explore 2D perovskites that incorporate both a first organic component, a primary ammonium cation, and a second neutral organic module. Through the experimental examination of 42 organic pairs with a range of functional groups and organic backbones, we identify five crystallization scenarios that occur upon mixing. Only one leads to the cointercalation of the organic modules with distinct and extended interlayer spacing, which is observed with the aid of X-ray diffraction (XRD) pattern analysis combined with cross-sectional transmission electron microscopy (TEM) and elemental analysis. We present a picture in which complementary pairs, capable of forming intermolecular bonds, cocrystallize with multiple structural arrangements. These arrangements are a function of the ratio of organic content, annealing temperature, and substrate surface characteristics. We highlight how noncovalent bonds, particularly hydrogen and halogen bonding, enable the influence over the organic sublattice in hybrid halide perovskites.
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Affiliation(s)
- Amin Morteza Najarian
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto M5S 3G4, Canada
| | - Maral Vafaie
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto M5S 3G4, Canada
| | - Randy Sabatini
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto M5S 3G4, Canada
| | - Sasa Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto M5S 3G4, Canada
| | - Peng Li
- NanoFAB, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
| | - Shihong Xu
- NanoFAB, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
| | - Makhsud I Saidaminov
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto M5S 3G4, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto M5S 3G4, Canada
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6
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Gidey A, Haruta Y, Herman AP, Grodzicki M, Melnychenko AM, Majchrzak D, Mahato S, Rogowicz E, Syperek M, Kudrawiec R, Saidaminov MI, Abdelhady AL. Surface Engineering of Methylammonium Lead Bromide Perovskite Crystals for Enhanced X-ray Detection. J Phys Chem Lett 2023; 14:9136-9144. [PMID: 37795957 PMCID: PMC10577767 DOI: 10.1021/acs.jpclett.3c02061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023]
Abstract
The surface quality of lead halide perovskite crystals can extremely influence their optoelectronic properties and device performance. Here, we report a surface engineering crystallization technique in which we in situ grow a polycrystalline methylammonium lead tribromide (MAPbBr3) film on top of bulk mm-sized single crystals. Such MAPbBr3 crystals with a MAPbBr3 passivating film display intense green emission under UV light. X-ray photoelectron spectroscopy demonstrates that these crystals with emissive surfaces are compositionally different from typical MAPbBr3 crystals that show no emission under UV light. Time-resolved photoluminescence and electrical measurements indicate that the MAPbBr3 film/MAPbBr3 crystals possess less surface defects compared to the bare MAPbBr3 crystals. Therefore, X-ray detectors fabricated using the surface-engineered MAPbBr3 crystals provide an almost 5 times improved sensitivity to X-rays and a more stable baseline drift with respect to the typical MAPbBr3 crystals.
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Affiliation(s)
- Abraha
Tadese Gidey
- ŁUKASIEWICZ
Research Network PORT-Polish Center for Technology Development, 54-066 Wrocław, Poland
| | - Yuki Haruta
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Artur P. Herman
- Department
of Semiconductor Materials Engineering, Faculty of Fundamental Problems
of Technology, Wrocław University
of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Miłosz Grodzicki
- ŁUKASIEWICZ
Research Network PORT-Polish Center for Technology Development, 54-066 Wrocław, Poland
- Department
of Semiconductor Materials Engineering, Faculty of Fundamental Problems
of Technology, Wrocław University
of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Anna M. Melnychenko
- ŁUKASIEWICZ
Research Network PORT-Polish Center for Technology Development, 54-066 Wrocław, Poland
- Department
of Semiconductor Materials Engineering, Faculty of Fundamental Problems
of Technology, Wrocław University
of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Dominika Majchrzak
- ŁUKASIEWICZ
Research Network PORT-Polish Center for Technology Development, 54-066 Wrocław, Poland
| | - Somnath Mahato
- ŁUKASIEWICZ
Research Network PORT-Polish Center for Technology Development, 54-066 Wrocław, Poland
| | - Ernest Rogowicz
- Department
of Experimental Physics, Wrocław University
of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Marcin Syperek
- Department
of Experimental Physics, Wrocław University
of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Robert Kudrawiec
- ŁUKASIEWICZ
Research Network PORT-Polish Center for Technology Development, 54-066 Wrocław, Poland
- Department
of Semiconductor Materials Engineering, Faculty of Fundamental Problems
of Technology, Wrocław University
of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Makhsud I. Saidaminov
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
- Department
of Electrical & Computer Engineering, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
- Centre for
Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Ahmed L. Abdelhady
- ŁUKASIEWICZ
Research Network PORT-Polish Center for Technology Development, 54-066 Wrocław, Poland
- Department
of Chemistry, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
- Advanced
Materials Chemistry Center (AMCC), Khalifa
University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
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7
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Moradi S, Kundu S, Awais M, Haruta Y, Nguyen HD, Zhang D, Tan F, Saidaminov MI. High-Throughput Exploration of Triple-Cation Perovskites via All-in-One Compositionally-Graded Films. Small 2023; 19:e2301037. [PMID: 37330659 DOI: 10.1002/smll.202301037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/22/2023] [Indexed: 06/19/2023]
Abstract
Many devices heavily rely on combinatorial material optimization. However, new material alloys are classically developed by studying only a fraction of giant chemical space, while many intermediate compositions remain unmade in light of the lack of methods to synthesize gapless material libraries. Here report a high-throughput all-in-one material platform to obtain and study compositionally-tunable alloys from solution is reported. This strategy is applied to make all Csx MAy FAz PbI3 perovskite alloys (MA and FA stand for methylammonium and formamidinium, respectively), in less than 10 min, on a single film, on which 520 unique alloys are then studied. Through stability mapping of all these alloys in air supersaturated with moisture, a range of targeted perovskites are found, which are then chosen to make efficient and stable solar cells in relaxed fabrication conditions, in ambient air. This all-in-one platform provides access to an unprecedented library of compositional space with no unmade alloys, and hence aids in a comprehensive accelerated discovery of efficient energy materials.
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Affiliation(s)
- Shahram Moradi
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Soumya Kundu
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Muhammad Awais
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Yuki Haruta
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Hai-Dang Nguyen
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Dongyang Zhang
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Furui Tan
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, P. R. China
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
- Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
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8
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Morteza Najarian A, Dinic F, Chen H, Sabatini R, Zheng C, Lough A, Maris T, Saidaminov MI, García de Arquer FP, Voznyy O, Hoogland S, Sargent EH. Homomeric chains of intermolecular bonds scaffold octahedral germanium perovskites. Nature 2023; 620:328-335. [PMID: 37438526 DOI: 10.1038/s41586-023-06209-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 05/12/2023] [Indexed: 07/14/2023]
Abstract
Perovskites with low ionic radii metal centres (for example, Ge perovskites) experience both geometrical constraints and a gain in electronic energy through distortion; for these reasons, synthetic attempts do not lead to octahedral [GeI6] perovskites, but rather, these crystallize into polar non-perovskite structures1-6. Here, inspired by the principles of supramolecular synthons7,8, we report the assembly of an organic scaffold within perovskite structures with the goal of influencing the geometric arrangement and electronic configuration of the crystal, resulting in the suppression of the lone pair expression of Ge and templating the symmetric octahedra. We find that, to produce extended homomeric non-covalent bonding, the organic motif needs to possess self-complementary properties implemented using distinct donor and acceptor sites. Compared with the non-perovskite structure, the resulting [GeI6]4- octahedra exhibit a direct bandgap with significant redshift (more than 0.5 eV, measured experimentally), 10 times lower octahedral distortion (inferred from measured single-crystal X-ray diffraction data) and 10 times higher electron and hole mobility (estimated by density functional theory). We show that the principle of this design is not limited to two-dimensional Ge perovskites; we implement it in the case of copper perovskite (also a low-radius metal centre), and we extend it to quasi-two-dimensional systems. We report photodiodes with Ge perovskites that outperform their non-octahedral and lead analogues. The construction of secondary sublattices that interlock with an inorganic framework within a crystal offers a new synthetic tool for templating hybrid lattices with controlled distortion and orbital arrangement, overcoming limitations in conventional perovskites.
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Affiliation(s)
- Amin Morteza Najarian
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Filip Dinic
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Hao Chen
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Randy Sabatini
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Chao Zheng
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Alan Lough
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Thierry Maris
- Département de Chimie, Université de Montréal, Montréal, Québec, Canada
| | - Makhsud I Saidaminov
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
| | - F Pelayo García de Arquer
- Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Oleksandr Voznyy
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Sjoerd Hoogland
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Edward H Sargent
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.
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9
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Ray A, Martín-García B, Prato M, Moliterni A, Bordignon S, Spirito D, Marras S, Goldoni L, Boopathi KM, Moro F, Casati NPM, Giacobbe C, Saidaminov MI, Giannini C, Chierotti MR, Krahne R, Manna L, Abdelhady AL. Mixed Organic Cations Promote Ambient Light-Induced Formation of Metallic Lead in Lead Halide Perovskite Crystals. ACS Appl Mater Interfaces 2023. [PMID: 37259773 DOI: 10.1021/acsami.3c03366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
One major concern toward the performance and stability of halide perovskite-based optoelectronic devices is the formation of metallic lead that promotes nonradiative recombination of charge carriers. The origin of metallic lead formation is being disputed whether it occurs during the perovskite synthesis or only after light, electron, or X-ray beam irradiation or thermal annealing. Here, we show that the quantity of metallic lead detected in perovskite crystals depends on the concentration and composition of the precursor solution. Through a controlled crystallization process, we grew black-colored mixed dimethylammonium (DMA)/methylammonium (MA) lead tribromide crystals. The black color is suggested to be due to the presence of small lead clusters. Despite the unexpected black coloring, the crystals show higher crystallinity and less defect density with respect to the standard yellow-colored DMA/MAPbBr3 crystals, as indicated by X-ray rocking curve and dark current measurements, respectively. While the formation of metallic lead could still be induced by external factors, the precursor solution composition and concentration can facilitate the formation of metallic lead during the crystallization process. Our results indicate that additional research is required to fully understand the perovskite precursor solution chemistry.
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Affiliation(s)
- Aniruddha Ray
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
- RGS Development B.V., Bijlestaal 54a, Broek op Langedijk, 1721 PW Dijk en Waard, Netherlands
| | - Beatriz Martín-García
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
- CIC NanoGUNE, Tolosa Hiribidea, 76, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Mirko Prato
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | - Anna Moliterni
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy
| | - Simone Bordignon
- Department of Chemistry, University of Torino, 10125 Torino, Italy
| | - Davide Spirito
- IHP─Leibniz-Institut für Innovative Mikroelektronik, Im Technologiepark 25, D-15236 Frankfurt (Oder), Germany
| | - Sergio Marras
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | - Luca Goldoni
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | | | - Fabrizio Moro
- Dipartimento di Scienza dei Materiali, Università degli Studi Milano-Bicocca, 20125 Milano, Italy
| | - Nicola Pietro Maria Casati
- Laboratory for Synchrotron Radiation─Condensed Matter, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Carlotta Giacobbe
- European Synchrotron Radiation Facility, 71 Avenue Des Martyrs, 38040 Grenoble, France
| | - Makhsud I Saidaminov
- Department of Chemistry, University of Victoria, Victoria, V8P 5C2 British Columbia, Canada
| | - Cinzia Giannini
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy
| | | | - Roman Krahne
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | - Ahmed L Abdelhady
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
- Department of Chemistry, Khalifa University, 127788 Abu Dhabi, United Arab Emirates
- Advanced Materials Chemistry Center (AMCC), Khalifa University, 127788 Abu Dhabi, United Arab Emirates
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10
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Abstract
Ferroelectric ceramics such as PbZrxTi1-xO3 (PZT) are widely applied in many fields, from medical to aerospace, because of their dielectric, piezoelectric, and pyroelectric properties. In the past few years, hybrid organic-inorganic halide perovskites have gradually attracted attention for their optical and electronic properties, including ferroelectricity, and for their low fabrication costs. In this Review, we first describe techniques that are used to quantify ferroelectric figures of merit of a material. We then discuss ferroelectricity in hybrid perovskites, starting from controversies in methylammonium iodoplumbate perovskites and then focusing on low-dimensional perovskites that offer an unambiguous platform to obtain ferroelectricity. Finally, we provide examples of the application of perovskite ferroelectrics in solar cells, LEDs, and X-ray detectors. We conclude that the vast structure-property tunability makes low-dimensional hybrid perovskites promising, but they have yet to offer ferroelectric figures of merit (e.g., saturated polarization) and thermal stability (e.g., Curie temperature) competitive with those of conventional oxide perovskite ferroelectric materials.
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Affiliation(s)
| | - Giovanni Pica
- Department of Chemistry, University of Pavia, Via T. Taramelli 14, 27100 Pavia, Italy
| | - Michele De Bastiani
- Department of Chemistry, University of Pavia, Via T. Taramelli 14, 27100 Pavia, Italy
| | | | - Giulia Grancini
- Department of Chemistry & INSTM, University of Pavia, Via T. Taramelli 14, 27100 Pavia, Italy
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11
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Wang Y, Lin R, Wang X, Liu C, Ahmed Y, Huang Z, Zhang Z, Li H, Zhang M, Gao Y, Luo H, Wu P, Gao H, Zheng X, Li M, Liu Z, Kong W, Li L, Liu K, Saidaminov MI, Zhang L, Tan H. Oxidation-resistant all-perovskite tandem solar cells in substrate configuration. Nat Commun 2023; 14:1819. [PMID: 37002238 PMCID: PMC10066323 DOI: 10.1038/s41467-023-37492-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 03/20/2023] [Indexed: 04/03/2023] Open
Abstract
The commonly-used superstrate configuration (depositing front subcell first and then depositing back subcell) in all-perovskite tandem solar cells is disadvantageous for long-term stability due to oxidizable narrow-bandgap perovskite assembled last and easily exposable to air. Here we reverse the processing order and demonstrate all-perovskite tandems in a substrate configuration (depositing back subcell first and then depositing front subcell) to bury oxidizable narrow-bandgap perovskite deep in the device stack. By using guanidinium tetrafluoroborate additive in wide-bandgap perovskite subcell, we achieve an efficiency of 25.3% for the substrate-configured all-perovskite tandem cells. The unencapsulated devices exhibit no performance degradation after storage in dry air for 1000 hours. The substrate configuration also widens the choice of flexible substrates: we achieve 24.1% and 20.3% efficient flexible all-perovskite tandem solar cells on copper-coated polyethylene naphthalene and copper metal foil, respectively. Substrate configuration offers a promising route to unleash the commercial potential of all-perovskite tandem solar cells.
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Affiliation(s)
- Yurui Wang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Renxing Lin
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Xiaoyu Wang
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, College of Materials Science and Engineering, Jilin University, Changchun, China
| | - Chenshuaiyu Liu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Yameen Ahmed
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Zilong Huang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Zhibin Zhang
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, China
| | - Hongjiang Li
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Mei Zhang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Yuan Gao
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Haowen Luo
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Pu Wu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Han Gao
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Xuntian Zheng
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Manya Li
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Zhou Liu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Wenchi Kong
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Ludong Li
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China
| | - Kaihui Liu
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, China
| | | | - Lijun Zhang
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, College of Materials Science and Engineering, Jilin University, Changchun, China
| | - Hairen Tan
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210023, China.
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12
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Xu B, Liu D, Dong C, Awais M, Wang W, Song Y, Deng Y, Yao M, Tong J, Yue G, Zhang W, Tan F, Saidaminov MI. NiO x for interface and work function engineering in carbon-based all-inorganic perovskite solar cells. J Colloid Interface Sci 2023; 641:105-112. [PMID: 36924540 DOI: 10.1016/j.jcis.2023.03.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/17/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023]
Abstract
Carbon-based all-inorganic perovskite solar cells (C-IPSCs) are stable, upscalable and have low CO2-footprint to fabricate. However, they are inefficient in converting light to electricity due to poor hole extraction at perovskite/carbon interface. Here we enable an efficient hole extraction in C-IPSCs with the aid of inorganic p-type nickel oxide nanoparticles (NiOx-NPs) at the interface and in carbon. By tailoring the work function (WF) of carbon, and reducing the energy-level misalignment at the perovskite/carbon interface, NiOx-NPs enable efficient hole transfer, reduce charge recombination and minimize energy loss. As a result, we report 15.01% and 11.02% efficiencies for CsPbI2Br and CsPbIBr2 C-IPSCs, respectively, with a high open-circuit voltage of ∼1.3 V. Unencapsulated interface-modified CsPbI2Br devices maintained 92.8% of their initial efficiency at ambient conditions after nearly 2,000 h; and 94.6% after heating at 60 °C for 170 h. This strategy to tailor carbon interface with perovskite offers an important knob in improving C-IPSCs performance.
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Affiliation(s)
- Bingjie Xu
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Dongmei Liu
- Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, PR China
| | - Chen Dong
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China.
| | - Muhammad Awais
- Department of Chemistry, Department of Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia, Canada
| | - Wanlong Wang
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Yuhao Song
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Yingying Deng
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Miaosen Yao
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Junjie Tong
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Gentian Yue
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Weifeng Zhang
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China
| | - Furui Tan
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, PR China.
| | - Makhsud I Saidaminov
- Department of Chemistry, Department of Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia, Canada.
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13
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Wu P, Thrithamarassery Gangadharan D, Saidaminov MI, Tan H. A Roadmap for Efficient and Stable All-Perovskite Tandem Solar Cells from a Chemistry Perspective. ACS Cent Sci 2023; 9:14-26. [PMID: 36712494 PMCID: PMC9881206 DOI: 10.1021/acscentsci.2c01077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Indexed: 06/18/2023]
Abstract
Multijunction tandem solar cells offer a promising route to surpass the efficiency limit of single-junction solar cells. All-perovskite tandem solar cells are particularly attractive due to their high power conversion efficiency, now reaching 28% despite being made with relatively easy fabrication methods. In this review, we summarize the progress in all-perovskite tandem solar cells. We then discuss the scientific and engineering challenges associated with both absorbers and functional layers and offer strategies for improving the efficiency and stability of all-perovskite tandem solar cells from the perspective of chemistry.
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Affiliation(s)
- Pu Wu
- National
Laboratory of Solid State Microstructures, Jiangsu Key Laboratory
of Artificial Functional Materials, College of Engineering and Applied
Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing210023, P. R.
China
| | | | - Makhsud I. Saidaminov
- Department
of Chemistry, University of Victoria, Victoria, British ColumbiaV8P 5C2, Canada
| | - Hairen Tan
- National
Laboratory of Solid State Microstructures, Jiangsu Key Laboratory
of Artificial Functional Materials, College of Engineering and Applied
Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing210023, P. R.
China
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14
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Turedi B, Lintangpradipto MN, Sandberg OJ, Yazmaciyan A, Matt GJ, Alsalloum AY, Almasabi K, Sakhatskyi K, Yakunin S, Zheng X, Naphade R, Nematulloev S, Yeddu V, Baran D, Armin A, Saidaminov MI, Kovalenko MV, Mohammed OF, Bakr OM. Single-Crystal Perovskite Solar Cells Exhibit Close to Half A Millimeter Electron-Diffusion Length. Adv Mater 2022; 34:e2202390. [PMID: 36069995 DOI: 10.1002/adma.202202390] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Single-crystal halide perovskites exhibit photogenerated-carriers of high mobility and long lifetime, making them excellent candidates for applications demanding thick semiconductors, such as ionizing radiation detectors, nuclear batteries, and concentrated photovoltaics. However, charge collection depreciates with increasing thickness; therefore, tens to hundreds of volts of external bias is required to extract charges from a thick perovskite layer, leading to a considerable amount of dark current and fast degradation of perovskite absorbers. However, extending the carrier-diffusion length can mitigate many of the anticipated issues preventing the practical utilization of perovskites in the abovementioned applications. Here, single-crystal perovskite solar cells that are up to 400 times thicker than state-of-the-art perovskite polycrystalline films are fabricated, yet retain high charge-collection efficiency in the absence of an external bias. Cells with thicknesses of 110, 214, and 290 µm display power conversion efficiencies (PCEs) of 20.0, 18.4, and 14.7%, respectively. The remarkable persistence of high PCEs, despite the increase in thickness, is a result of a long electron-diffusion length in those cells, which was estimated, from the thickness-dependent short-circuit current, to be ≈0.45 mm under 1 sun illumination. These results pave the way for adapting perovskite devices to optoelectronic applications in which a thick active layer is essential.
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Affiliation(s)
- Bekir Turedi
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Muhammad N Lintangpradipto
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Oskar J Sandberg
- Sustainable Advanced Materials (Sêr SAM), Department of Physics, Swansea University, Singleton Park, Swansea, SA2 8PP, UK
| | - Aren Yazmaciyan
- KAUST Solar Center (KSC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Gebhard J Matt
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Abdullah Y Alsalloum
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Khulud Almasabi
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Kostiantyn Sakhatskyi
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Sergii Yakunin
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Xiaopeng Zheng
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Rounak Naphade
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Saidkhodzha Nematulloev
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Vishal Yeddu
- Department of Chemistry and Department of Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC, V8P 5C2, Canada
| | - Derya Baran
- KAUST Solar Center (KSC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Ardalan Armin
- Sustainable Advanced Materials (Sêr SAM), Department of Physics, Swansea University, Singleton Park, Swansea, SA2 8PP, UK
| | - Makhsud I Saidaminov
- Department of Chemistry and Department of Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC, V8P 5C2, Canada
| | - Maksym V Kovalenko
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Omar F Mohammed
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
- Advanced Membranes and Porous Materials Center (AMPM), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Osman M Bakr
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
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15
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Moradi S, Kundu S, Saidaminov MI. High-Throughput Synthesis of Thin Films for the Discovery of Energy Materials: A Perspective. ACS Mater Au 2022; 2:516-524. [PMID: 36124002 PMCID: PMC9479136 DOI: 10.1021/acsmaterialsau.2c00028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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Thin films are an
integral part of many electronic and optoelectronic
devices. They also provide an excellent platform for material characterization.
Therefore, strategies for the fabrication of thin films are constantly
developed and have significantly benefited from the advent of high-throughput
synthesis (HTS) platforms. This perspective summarizes recent advances
in HTS of thin films from experimentalists’ point of view.
The work analyzes general strategies of HTS and then discusses their
use in developing new energy materials for applications that rely
on thin films, such as solar cells, light-emitting diodes, batteries,
superconductors, and thermoelectrics. The perspective also summarizes
some key challenges and opportunities in the HTS of thin films.
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Affiliation(s)
- Shahram Moradi
- Department of Electrical & Computer Engineering, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Soumya Kundu
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Makhsud I. Saidaminov
- Department of Electrical & Computer Engineering, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
- Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
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16
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Mei Y, Lu X, Dong C, Tan F, Cui M, Haruta Y, Yeddu V, Wang M, Liu K, Yue G, Gao Y, Qu S, Qin C, Zhang W, Ding L, Saidaminov MI, Wang Z. Synergistic Effects of Bipolar Additives on Grain Boundary-Mediated Charge Transport for Efficient Carbon-Based Inorganic Perovskite Solar Cells. ACS Appl Mater Interfaces 2022; 14:38963-38971. [PMID: 35979625 DOI: 10.1021/acsami.2c11895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Carbon-based all-inorganic CsPbIxBr3-x perovskite solar cells offer high stability against heat and humidity and a suitable band gap for tandem and semitransparent photovoltaics. In CsPbIxBr3-x perovskite films, the defects at grain boundaries (GBs) cause charge trapping, reducing the efficiency of the cell. Electronic deactivation of GB has been a conventional strategy to suppress the trapping, but at the cost of charge carrier transport through the boundaries. Here, we turn the GBs into benign charge transport pathways with the aid of bipolar charge transport semiconductors, namely, Ti3C2TX (MXene) and Spiro-OMeTAD, respectively. Thanks to the synergistic effects of both n- and p-type transport media, the charge transport is improved and balanced at the GBs. As a result, the cells achieve an efficiency of 12.7%, the highest among all low-temperature-processed carbon-based inorganic perovskite solar cells. Benign GBs also lead to enhanced light and aging stabilities. Our work demonstrates a proof-of-concept strategy of benign electronic modulation of GBs for solution-processed perovskite solar cells.
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Affiliation(s)
- Yantao Mei
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Xiayao Lu
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Chen Dong
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Furui Tan
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Minghuan Cui
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, Henan Normal University, Xinxiang 453007, P. R. China
| | - Yuki Haruta
- Department of Chemistry and Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria V8P5C2, Canada
- Graduate School of Energy Science, Kyoto University, Kyoto 606-8501, Japan
| | - Vishal Yeddu
- Department of Chemistry and Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria V8P5C2, Canada
| | - Mengyue Wang
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Kong Liu
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, P. R. China
| | - Gentian Yue
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Yueyue Gao
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Shengchun Qu
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, P. R. China
| | - Chaochao Qin
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, Henan Normal University, Xinxiang 453007, P. R. China
| | - Weifeng Zhang
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, P. R. China
| | - Liming Ding
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Makhsud I Saidaminov
- Department of Chemistry and Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria V8P5C2, Canada
| | - Zhijie Wang
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, P. R. China
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17
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Zhang H, Moazzezi P, Ren J, Henderson B, Cordoba C, Yeddu V, Blackburn AM, Saidaminov MI, Paci I, Hughes S, Gordon R. Coupling Perovskite Quantum Dot Pairs in Solution using a Nanoplasmonic Assembly. Nano Lett 2022; 22:5287-5293. [PMID: 35767329 DOI: 10.1021/acs.nanolett.2c01222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Perovskite quantum dots (PQDs) provide a robust solution-based approach to efficient solar cells, bright light emitting devices, and quantum sources of light. Quantifying heterogeneity and understanding coupling between dots is critical for these applications. We use double-nanohole optical trapping to size individual dots and correlate to emission energy shifts from quantum confinement. We were able to assemble a second dot in the trap, which allows us to observe the coupling between dots. We observe a systematic red-shift of 1.1 ± 0.6 meV in the emission wavelength. Theoretical analysis shows that the observed shift is consistent with resonant energy transfer and is unusually large due to moderate-to-large quantum confinement in PQDs. This demonstrates the promise of PQDs for entanglement in quantum information applications. This work enables future in situ control of PQD growth as well as studies of the coupling between small PQD assemblies with quantum information applications in mind.
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Affiliation(s)
- Hao Zhang
- Department of Electrical and Computer Engineering, University of Victoria, Victoria V8P 5C2, Canada
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
| | - Parinaz Moazzezi
- Department of Electrical and Computer Engineering, University of Victoria, Victoria V8P 5C2, Canada
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, V8P 5C2 Victoria, Canada
| | - Juanjuan Ren
- Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston K7L 3N6, Canada
| | - Brett Henderson
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
- Department of Chemistry, University of Victoria, Victoria V8P 5C2, Canada
- Quantum Algorithms Institute, Surrey V3T 5X3, Canada
| | - Cristina Cordoba
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, V8P 5C2 Victoria, Canada
- Department of Physics and Astronomy, University of Victoria, Victoria V8P 5C2, Canada
| | - Vishal Yeddu
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
- Department of Chemistry, University of Victoria, Victoria V8P 5C2, Canada
| | - Arthur M Blackburn
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
- Department of Physics and Astronomy, University of Victoria, Victoria V8P 5C2, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Victoria, Victoria V8P 5C2, Canada
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
- Department of Chemistry, University of Victoria, Victoria V8P 5C2, Canada
| | - Irina Paci
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
- Department of Chemistry, University of Victoria, Victoria V8P 5C2, Canada
| | - Stephen Hughes
- Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston K7L 3N6, Canada
| | - Reuven Gordon
- Department of Electrical and Computer Engineering, University of Victoria, Victoria V8P 5C2, Canada
- Centre for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
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18
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Zhou C, M. Pina J, Zhu T, H. Parmar D, Chang H, Yu J, Yuan F, Bappi G, Hou Y, Zheng X, Abed J, Chen H, Zhang J, Gao Y, Chen B, Wang Y, Chen H, Zhang T, Hoogland S, Saidaminov MI, Sun L, Bakr OM, Dong H, Zhang L, H. Sargent E. Quantum Dot Self-Assembly Enables Low-Threshold Lasing. Adv Sci (Weinh) 2021; 8:e2101125. [PMID: 34449133 PMCID: PMC8529423 DOI: 10.1002/advs.202101125] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/23/2021] [Indexed: 05/19/2023]
Abstract
Perovskite quantum dots (QDs) are of interest for solution-processed lasers; however, their short Auger lifetime has limited lasing operation principally to the femtosecond temporal regime the photoexcitation levels to achieve optical gain threshold are up to two orders of magnitude higher in the nanosecond regime than in the femtosecond. Here the authors report QD superlattices in which the gain medium facilitates excitonic delocalization to decrease Auger recombination and in which the macroscopic dimensions of the structures provide the optical feedback required for lasing. The authors develope a self-assembly strategy that relies on sodiumd-an assembly director that passivates the surface of the QDs and induces self-assembly to form ordered three-dimensional cubic structures. A density functional theory model that accounts for the attraction forces between QDs allows to explain self-assembly and superlattice formation. Compared to conventional organic-ligand-passivated QDs, sodium enables higher attractive forces, ultimately leading to the formation of micron-length scale structures and the optical faceting required for feedback. Simultaneously, the decreased inter-dot distance enabled by the new ligand enhances exciton delocalization among QDs, as demonstrated by the dynamically red-shifted photoluminescence. These structures function as the lasing cavity and the gain medium, enabling nanosecond-sustained lasing with a threshold of 25 µJ cm-2 .
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Affiliation(s)
- Chun Zhou
- Key Laboratory of Materials for High‐Power LaserShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai201800China
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
- University of Chinese Academy of SciencesNo.19(A) Yuquan Road, Shijingshan DistrictBeijing100049China
| | - Joao M. Pina
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Tong Zhu
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Darshan H. Parmar
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Hao Chang
- Key Laboratory of Materials for High‐Power LaserShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai201800China
- University of Chinese Academy of SciencesNo.19(A) Yuquan Road, Shijingshan DistrictBeijing100049China
| | - Jie Yu
- Key Laboratory of Materials for High‐Power LaserShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai201800China
- University of Chinese Academy of SciencesNo.19(A) Yuquan Road, Shijingshan DistrictBeijing100049China
| | - Fanglong Yuan
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Golam Bappi
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Yi Hou
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Xiaopeng Zheng
- Division of Physical Sciences and Engineering (PSE)King Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Kingdom of Saudi Arabia
| | - Jehad Abed
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Hao Chen
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Jian Zhang
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai200083China
| | - Yuan Gao
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Bin Chen
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Ya‐Kun Wang
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Haijie Chen
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Tianju Zhang
- Key Laboratory of Materials for High‐Power LaserShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai201800China
| | - Sjoerd Hoogland
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Makhsud I. Saidaminov
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
- Department of Chemistry and Electrical & Computer EngineeringCentre for Advanced Materials and Related Technologies (CAMTEC)University of VictoriaVictoriaBritish ColumbiaV8P 5C2Canada
| | - Liaoxin Sun
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai200083China
| | - Osman M. Bakr
- Division of Physical Sciences and Engineering (PSE)King Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Kingdom of Saudi Arabia
| | - Hongxing Dong
- Key Laboratory of Materials for High‐Power LaserShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai201800China
| | - Long Zhang
- Key Laboratory of Materials for High‐Power LaserShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai201800China
| | - Edward H. Sargent
- The Edward S. Rogers Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
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19
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Stamper C, Sabatini RP, Bernardi S, Liao C, Dennis E, Sharma A, Widmer-Cooper A, Saidaminov MI, Ho-Baillie AWY, Lakhwani G. Magnetic optical rotary dispersion and magnetic circular dichroism in methylammonium lead halide perovskites. Chirality 2021; 33:610-617. [PMID: 34464472 DOI: 10.1002/chir.23346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/09/2021] [Accepted: 07/01/2021] [Indexed: 11/10/2022]
Abstract
Large magnetic optical rotary dispersion (Faraday rotation) has been demonstrated recently in methylammonium lead bromide. Here, we investigate the prospect of extending the active spectral range by altering the halogen. We also investigate the origins of large Faraday rotation in these diamagnetic materials using magnetic circular dichroism (MCD) spectroscopy and the Kramers-Kronig relations. We find that, while MAPbCl3 (MA = methylammonium) single crystals exhibit a large Verdet constant in the blue, no appreciable Faraday rotation is observed in the red/near infra-red for MAPbI3 single crystals. However, in all film samples, we find clear evidence of large MCD resulting from the Zeeman splitting of the highly resonant 1s exciton state. Our Kramers-Kronig calculations of Faraday rotation based on MCD data matches well with the dispersion of our experimental data for MAPbCl3 and MAPbBr3 , with some deviation in magnitude-demonstrating the excitonic nature of Faraday rotation in these materials. However, our calculations predict significant Faraday rotation in MAPbI3 , contrary to our experimental results, indicating a potential discrepancy between the properties of the thin film and single crystal.
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Affiliation(s)
- Caleb Stamper
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, NSW, Australia
| | - Randy P Sabatini
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, NSW, Australia.,Institute of Photonics and Optical Science, The University of Sydney, Sydney, NSW, Australia
| | - Stefano Bernardi
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, NSW, Australia.,The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, Australia
| | - Chwenhaw Liao
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, Australia.,School of Physics, The University of Sydney, Sydney, NSW, Australia.,School of Photovoltaic and Renewable Energy Engineering, UNSW, Sydney, NSW, Australia
| | - Emma Dennis
- Department of Chemistry, Department of Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC, Canada
| | - Ashish Sharma
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, NSW, Australia
| | - Asaph Widmer-Cooper
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, NSW, Australia.,The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, Australia
| | - Makhsud I Saidaminov
- Department of Chemistry, Department of Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC, Canada
| | - Anita W Y Ho-Baillie
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, Australia.,School of Physics, The University of Sydney, Sydney, NSW, Australia.,School of Photovoltaic and Renewable Energy Engineering, UNSW, Sydney, NSW, Australia
| | - Girish Lakhwani
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, NSW, Australia.,Institute of Photonics and Optical Science, The University of Sydney, Sydney, NSW, Australia.,The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, Australia
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20
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Wang Y, Yuan F, Dong Y, Li J, Johnston A, Chen B, Saidaminov MI, Zhou C, Zheng X, Hou Y, Bertens K, Ebe H, Ma D, Deng Z, Yuan S, Chen R, Sagar LK, Liu J, Fan J, Li P, Li X, Gao Y, Fung M, Lu Z, Bakr OM, Liao L, Sargent EH. All‐Inorganic Quantum‐Dot LEDs Based on a Phase‐Stabilized α‐CsPbI
3
Perovskite. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ya‐Kun Wang
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Fanglong Yuan
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
- Department of Materials Science and Engineering University of Toronto 184 College Street Toronto Ontario M5S 3G4 Canada
| | - Yitong Dong
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Jiao‐Yang Li
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Andrew Johnston
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Bin Chen
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Makhsud I. Saidaminov
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
- Present address: Department of Chemistry and Electrical & Computer Engineering Centre for Advanced Materials and Related Technologies (CAMTEC) University of Victoria Victoria British Columbia Canada
| | - Chun Zhou
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Xiaopeng Zheng
- Division of Physical Sciences and Engineering King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Yi Hou
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Koen Bertens
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Hinako Ebe
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Dongxin Ma
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Zhengtao Deng
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
- College of Engineering and Applied Sciences State Key Laboratory of Analytical Chemistry for Life Science Nanjing University Nanjing Jiangsu 210023 P. R. China
| | - Shuai Yuan
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Rui Chen
- Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 P. R. China
| | - Laxmi Kishore Sagar
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Jiakai Liu
- Division of Physical Sciences and Engineering King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - James Fan
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Peicheng Li
- Department of Materials Science and Engineering University of Toronto 184 College Street Toronto Ontario M5S 3G4 Canada
| | - Xiyan Li
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Yuan Gao
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Man‐Keung Fung
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Zheng‐Hong Lu
- Department of Materials Science and Engineering University of Toronto 184 College Street Toronto Ontario M5S 3G4 Canada
| | - Osman M. Bakr
- Division of Physical Sciences and Engineering King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Liang‐Sheng Liao
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Edward H. Sargent
- Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
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21
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Wang YK, Yuan F, Dong Y, Li JY, Johnston A, Chen B, Saidaminov MI, Zhou C, Zheng X, Hou Y, Bertens K, Ebe H, Ma D, Deng Z, Yuan S, Chen R, Sagar LK, Liu J, Fan J, Li P, Li X, Gao Y, Fung MK, Lu ZH, Bakr OM, Liao LS, Sargent EH. All-Inorganic Quantum-Dot LEDs Based on a Phase-Stabilized α-CsPbI 3 Perovskite. Angew Chem Int Ed Engl 2021; 60:16164-16170. [PMID: 33982380 DOI: 10.1002/anie.202104812] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/08/2021] [Indexed: 11/12/2022]
Abstract
The all-inorganic nature of CsPbI3 perovskites allows to enhance stability in perovskite devices. Research efforts have led to improved stability of the black phase in CsPbI3 films; however, these strategies-including strain and doping-are based on organic-ligand-capped perovskites, which prevent perovskites from forming the close-packed quantum dot (QD) solids necessary to achieve high charge and thermal transport. We developed an inorganic ligand exchange that leads to CsPbI3 QD films with superior phase stability and increased thermal transport. The atomic-ligand-exchanged QD films, once mechanically coupled, exhibit improved phase stability, and we link this to distributing strain across the film. Operando measurements of the temperature of the LEDs indicate that KI-exchanged QD films exhibit increased thermal transport compared to controls that rely on organic ligands. The LEDs exhibit a maximum EQE of 23 % with an electroluminescence emission centered at 640 nm (FWHM: ≈31 nm). These red LEDs provide an operating half-lifetime of 10 h (luminance of 200 cd m-2 ) and an operating stability that is 6× higher than that of control devices.
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Affiliation(s)
- Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.,Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Fanglong Yuan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.,Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3G4, Canada
| | - Yitong Dong
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Jiao-Yang Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.,Present address: Department of Chemistry and Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia, Canada
| | - Chun Zhou
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Xiaopeng Zheng
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Koen Bertens
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Hinako Ebe
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Dongxin Ma
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Zhengtao Deng
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.,College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Shuai Yuan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Rui Chen
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Laxmi Kishore Sagar
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Jiakai Liu
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - James Fan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Peicheng Li
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3G4, Canada
| | - Xiyan Li
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Yuan Gao
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Man-Keung Fung
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3G4, Canada
| | - Osman M Bakr
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Liang-Sheng Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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22
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Gao Y, Meshkat S, Johnston A, Zheng C, Walters G, Feng Q, Wang X, Sun MJ, Najarian AM, Xue D, Wang YK, Saidaminov MI, Voznyy O, Hoogland S, Sargent EH. Electro-Optic Modulation Using Metal-Free Perovskites. ACS Appl Mater Interfaces 2021; 13:19042-19047. [PMID: 33856188 DOI: 10.1021/acsami.1c03406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electro-optic (EO) modulation is of interest to impart information onto an optical carrier. Inorganic crystals-most notably LiNbO3 and BaTiO3-exhibit EO modulation and good stability, but are difficult to integrate with silicon photonic technology. Solution-processed organic EO materials are readily integrated but suffer from thermal degradation at the temperatures required in operating conditions for accelerated reliability studies. Hybrid organic-inorganic metal halide perovskites have the potential to overcome these limitations; however, these have so far relied on heavy metals such as lead and cadmium. Here, we report linear EO modulation using metal-free perovskites, which maintain the crystalline features of the inorganic EO materials and incorporate the flexible functionality of organic EO chromophores. We find that, by introducing a deficiency of cations, we reduce the symmetry in the perovskite crystal and produce thereby an increased EO response. The best-engineered perovskites reported herein showcase an EO coefficient of 14 pm V-1 at a modulation frequency of 80 kHz, an order of magnitude higher than in the nondefective materials. We observe split peaks in the X-ray diffraction and neutron diffraction patterns of the defective sample, indicating that the crystalline structure has been distorted and the symmetry reduced. Density functional theory (DFT) studies link this decreased symmetry to NH4+ deficiencies. This demonstration of EO from metal-free perovskites highlights their potential in next-generation optical information transmission.
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Affiliation(s)
- Yuan Gao
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Shadi Meshkat
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Chao Zheng
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Grant Walters
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Qixin Feng
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Xiaoping Wang
- Neutron Scattering Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
| | - Meng-Jia Sun
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Amin Morteza Najarian
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Dingjiang Xue
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Oleksandr Voznyy
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
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23
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Huang J, Isaac M, Watt R, Becica J, Dennis E, Saidaminov MI, Sabbers WA, Leitch DC. DMPDAB–Pd–MAH: A Versatile Pd(0) Source for Precatalyst Formation, Reaction Screening, and Preparative-Scale Synthesis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00288] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jingjun Huang
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Matthew Isaac
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Ryan Watt
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Joseph Becica
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Emma Dennis
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Makhsud I. Saidaminov
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - William A. Sabbers
- Department of Chemistry, Temple University, 1901 N. Broad Street, Philadelphia, Pennsylvania 19122, United States
| | - David C. Leitch
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
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24
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Tailor NK, Maity P, Saidaminov MI, Pradhan N, Satapathi S. Dark Self-Healing-Mediated Negative Photoconductivity of a Lead-Free Cs 3Bi 2Cl 9 Perovskite Single Crystal. J Phys Chem Lett 2021; 12:2286-2292. [PMID: 33646788 DOI: 10.1021/acs.jpclett.1c00057] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, halide perovskites have emerged as a promising material for device applications. Lead-based perovskites have been widely explored, while investigation of the optical properties of lead-free perovskites remains limited. Lead-halide perovskite single crystals have shown light-induced positive photoconductivity, and as lead-free perovskites are optically active, they are expected to demonstrate similar properties. However, we report here light-induced negative photoconductivity with slow recovery in lead-free Cs3Bi2Cl9 perovskite. Femtosecond transient reflectance (fs-TR) spectroscopy studies further reveal that these electronic transport properties are due to the formation of light-activated metastable trap states within the perovskite crystal. The figure of merits were calculated for Cs3Bi2Cl9 single-crystal detectors, including responsivity (17 mA/W), detectivity (6.23 × 1011 Jones), and the ratio of current in dark to light (∼7160). These observations for Cs3Bi2Cl9 single crystals, which were optically active but showed retroactive photocurrent on irradiation, remain unique for such materials.
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Affiliation(s)
- Naveen Kumar Tailor
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand 247667, India
| | - Partha Maity
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST),Thuwal 23955-6900, Saudi Arabia
| | | | - Narayan Pradhan
- Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Soumitra Satapathi
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand 247667, India
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25
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Pina JM, Parmar DH, Bappi G, Zhou C, Choubisa H, Vafaie M, Najarian AM, Bertens K, Sagar LK, Dong Y, Gao Y, Hoogland S, Saidaminov MI, Sargent EH. Deep-Blue Perovskite Single-Mode Lasing through Efficient Vapor-Assisted Chlorination. Adv Mater 2021; 33:e2006697. [PMID: 33349998 DOI: 10.1002/adma.202006697] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/13/2020] [Indexed: 06/12/2023]
Abstract
Metal halide perovskites have emerged as promising candidates for solution-processed laser gain materials, with impressive performance in the green and red spectral regions. Despite exciting progress, deep-blue-an important wavelength for laser applications-remains underexplored; indeed, cavity integration and single-mode lasing from large-bandgap perovskites have yet to be achieved. Here, a vapor-assisted chlorination strategy that enables synthesis of low-dimensional CsPbCl3 thin films exhibiting deep-blue emission is reported. Using this approach, high-quality perovskite thin films having a low surface roughness (RMS ≈ 1.3 nm) and efficient charge transfer properties are achieved. These enable us to document low-threshold amplified spontaneous emission. Levering the high quality of the gain medium, vertical-cavity surface-emitting lasers with a low lasing threshold of 6.5 µJ cm-2 are fabricated. This report of deep-blue perovskite single-mode lasing showcases the prospect of increasing the range of deep-blue laser sources.
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Affiliation(s)
- Joao M Pina
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Darshan H Parmar
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Golam Bappi
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Chun Zhou
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Hitarth Choubisa
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Maral Vafaie
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Amin M Najarian
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Koen Bertens
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Laxmi Kishore Sagar
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Yitong Dong
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Yuan Gao
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Sjoerd Hoogland
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Makhsud I Saidaminov
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Edward H Sargent
- The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
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26
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Dennis E, Kundu S, Thrithamarassery Gangadharan D, Huang J, Burlakov VM, Richtsmeier D, Bazalova-Carter M, Leitch DC, Saidaminov MI. High length-to-width aspect ratio lead bromide microwires via perovskite-induced local concentration gradient for X-ray detection. CrystEngComm 2021. [DOI: 10.1039/d1ce00015b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Well-oriented PbBr2 microwires with a length-to-width ratio of up to 5000 were grown using a concentration gradient in co-crystallization with perovskite. Planar-integrated microwires showed a response to X-ray photons.
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Affiliation(s)
- Emma Dennis
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | - Soumya Kundu
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | | | - Jingjun Huang
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | | | - Devon Richtsmeier
- Department of Physics and Astronomy
- University of Victoria
- Victoria
- Canada
| | | | | | - Makhsud I. Saidaminov
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
- Department of Electrical & Computer Engineering
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27
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Li J, Che F, Pang Y, Zou C, Howe JY, Burdyny T, Edwards JP, Wang Y, Li F, Wang Z, De Luna P, Dinh CT, Zhuang TT, Saidaminov MI, Cheng S, Wu T, Finfrock YZ, Ma L, Hsieh SH, Liu YS, Botton GA, Pong WF, Du X, Guo J, Sham TK, Sargent EH, Sinton D. Publisher Correction: Copper adparticle enabled selective electrosynthesis of n-propanol. Nat Commun 2020; 11:1034. [PMID: 32080197 PMCID: PMC7033088 DOI: 10.1038/s41467-020-14883-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Johnston A, Walters G, Saidaminov MI, Huang Z, Bertens K, Jalarvo N, Sargent EH. Bromine Incorporation and Suppressed Cation Rotation in Mixed-Halide Perovskites. ACS Nano 2020; 14:15107-15118. [PMID: 33103419 DOI: 10.1021/acsnano.0c05179] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Engineering the composition of perovskite active layers has been critical in increasing the efficiency of perovskite solar cells (PSCs) to more than 25% in the latest reports. Partial substitutions of the monovalent cation and the halogen have been adopted in the highest-performing devices, but the precise role of bromine incorporation remains incompletely explained. Here we use quasi-elastic neutron scattering (QENS) to study, as a function of the degree of bromine incorporation, the dynamics of organic cations in triple-cation lead mixed-halide perovskites. We find that the inclusion of bromine suppresses low-energy rotations of formamidinium (FA), and we find that inhibiting FA rotation correlates with a longer-lived carrier lifetime. When the fraction of bromine approaches 0.15 on the halogen site-a composition used extensively in the PSC literature-the fraction of actively rotating FA molecules is minimized: indeed, the fraction of rotating FA is suppressed by more than 25% compared to the bromine-free perovskite.
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Affiliation(s)
- Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Grant Walters
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
- Department of Chemistry and Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria V8P 5C2, Canada
| | - Ziru Huang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Koen Bertens
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Niina Jalarvo
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
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29
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Dong Y, Wang YK, Yuan F, Johnston A, Liu Y, Ma D, Choi MJ, Chen B, Chekini M, Baek SW, Sagar LK, Fan J, Hou Y, Wu M, Lee S, Sun B, Hoogland S, Quintero-Bermudez R, Ebe H, Todorovic P, Dinic F, Li P, Kung HT, Saidaminov MI, Kumacheva E, Spiecker E, Liao LS, Voznyy O, Lu ZH, Sargent EH. Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots. Nat Nanotechnol 2020; 15:668-674. [PMID: 32632321 DOI: 10.1038/s41565-020-0714-5] [Citation(s) in RCA: 213] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 05/11/2020] [Indexed: 05/11/2023]
Abstract
Colloidal quantum dot (QD) solids are emerging semiconductors that have been actively explored in fundamental studies of charge transport1 and for applications in optoelectronics2. Forming high-quality QD solids-necessary for device fabrication-requires substitution of the long organic ligands used for synthesis with short ligands that provide increased QD coupling and improved charge transport3. However, in perovskite QDs, the polar solvents used to carry out the ligand exchange decompose the highly ionic perovskites4. Here we report perovskite QD resurfacing to achieve a bipolar shell consisting of an inner anion shell, and an outer shell comprised of cations and polar solvent molecules. The outer shell is electrostatically adsorbed to the negatively charged inner shell. This approach produces strongly confined perovskite QD solids that feature improved carrier mobility (≥0.01 cm2 V-1 s-1) and reduced trap density relative to previously reported low-dimensional perovskites. Blue-emitting QD films exhibit photoluminescence quantum yields exceeding 90%. By exploiting the improved mobility, we have been able to fabricate CsPbBr3 QD-based efficient blue and green light-emitting diodes. Blue devices with reduced trap density have an external quantum efficiency of 12.3%; the green devices achieve an external quantum efficiency of 22%.
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Affiliation(s)
- Yitong Dong
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, PR China
| | - Fanglong Yuan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Yuan Liu
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Dongxin Ma
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Min-Jae Choi
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Mahshid Chekini
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Se-Woong Baek
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemical and Biological Engineering, Korea University, Seoul, Korea
| | - Laxmi Kishore Sagar
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - James Fan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Mingjian Wu
- Centre for Nanoanalysis and Electron Microscopy (CENEM) and Institute of Micro- and Nanostructure Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Seungjin Lee
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Bin Sun
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Rafael Quintero-Bermudez
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Hinako Ebe
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Petar Todorovic
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Filip Dinic
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada
| | - Peicheng Li
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Hao Ting Kung
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemistry and Electrical and Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia, Canada
| | - Eugenia Kumacheva
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Erdmann Spiecker
- Centre for Nanoanalysis and Electron Microscopy (CENEM) and Institute of Micro- and Nanostructure Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Liang-Sheng Liao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, PR China
| | - Oleksandr Voznyy
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada.
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.
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30
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Saidaminov MI, Williams K, Wei M, Johnston A, Quintero-Bermudez R, Vafaie M, Pina JM, Proppe AH, Hou Y, Walters G, Kelley SO, Tisdale WA, Sargent EH. Multi-cation perovskites prevent carrier reflection from grain surfaces. Nat Mater 2020; 19:412-418. [PMID: 32042078 DOI: 10.1038/s41563-019-0602-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
The composition of perovskite has been optimized combinatorially such that it often contains six components (AxByC1-x-yPbXzY3-z) in state-of-art perovskite solar cells. Questions remain regarding the precise role of each component, and the lack of a mechanistic explanation limits the practical exploration of the large and growing chemical space. Here, aided by transient photoluminescence microscopy, we find that, in perovskite single crystals, carrier diffusivity is in fact independent of composition. In polycrystalline thin films, the different compositions play a crucial role in carrier diffusion. We report that methylammonium (MA)-based films show a high carrier diffusivity of 0.047 cm2 s-1, while MA-free mixed caesium-formamidinium (CsFA) films exhibit an order of magnitude lower diffusivity. Elemental composition studies show that CsFA grains display a graded composition. This curtails electron diffusion in these films, as seen in both vertical carrier transport and surface potential studies. Incorporation of MA leads to a uniform grain core-to-edge composition, giving rise to a diffusivity of 0.034 cm2 s-1 in CsMAFA films. A model that invokes competing crystallization processes allows us to account for this finding, and suggests further strategies to achieve homogeneous crystallization for the benefit of perovskite optoelectronics.
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Affiliation(s)
- Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemistry and Electrical & Computer Engineering, Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia, Canada
| | - Kristopher Williams
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Rafael Quintero-Bermudez
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Maral Vafaie
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Joao M Pina
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Andrew H Proppe
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Grant Walters
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Shana O Kelley
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - William A Tisdale
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.
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31
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Tan CS, Hou Y, Saidaminov MI, Proppe A, Huang YS, Zhao Y, Wei M, Walters G, Wang Z, Zhao Y, Todorovic P, Kelley SO, Chen LJ, Sargent EH. Heterogeneous Supersaturation in Mixed Perovskites. Adv Sci (Weinh) 2020; 7:1903166. [PMID: 32274311 PMCID: PMC7140989 DOI: 10.1002/advs.201903166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/20/2019] [Indexed: 05/29/2023]
Abstract
Thin-film solar cells based on hybrid lead halide perovskites have achieved certified power conversion efficiencies exceeding 24%, approaching those of crystalline silicon. This motivates deeper studies of the mechanisms that determine their performance. Twin defect sites have been proposed as a source of traps in perovskites, yet their origin and influence on photovoltaic performance remain unclear. It is found that twin defects-observed herein via both transmission electron microscopy and X-ray diffraction-are correlated with the amount of antisolvent added to the perovskite and that twin defects in the highest-performing perovskite photovoltaics are suppressed. Heterogeneous supersaturation nucleation is discussed as a contributor to efficient perovskite-based optoelectronic devices.
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Affiliation(s)
- Chih Shan Tan
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
- Frontier Research Center on Fundamental and Applied Sciences of MattersDepartment of Materials Science and EngineeringNational Tsing Hua UniversityHsinchuTaiwan30043Republic of China
| | - Yi Hou
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Makhsud I. Saidaminov
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
- Department of Chemistry and Electrical and Computer EngineeringCentre for Advanced Materials and Related Technologies (CAMTEC)University of Victoria3800 Finnerty RdVictoriaBC V8P 5C2Canada
| | - Andrew Proppe
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
- Department of ChemistryUniversity of Toronto80 St. George StreetTorontoOntarioM5S 3G4Canada
| | - Yu Sheng Huang
- Frontier Research Center on Fundamental and Applied Sciences of MattersDepartment of Materials Science and EngineeringNational Tsing Hua UniversityHsinchuTaiwan30043Republic of China
| | - Yicheng Zhao
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Mingyang Wei
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Grant Walters
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Ziyun Wang
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Yongbiao Zhao
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Petar Todorovic
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
| | - Shana O. Kelley
- Department of ChemistryUniversity of Toronto80 St. George StreetTorontoOntarioM5S 3G4Canada
- Department of Pharmaceutical SciencesLeslie Dan Faculty of PharmacyUniversity of TorontoTorontoOntarioM5S 3M2Canada
| | - Lih Juann Chen
- Frontier Research Center on Fundamental and Applied Sciences of MattersDepartment of Materials Science and EngineeringNational Tsing Hua UniversityHsinchuTaiwan30043Republic of China
| | - Edward H. Sargent
- Department of Electrical and Computer EngineeringUniversity of Toronto10 King's College RoadTorontoOntarioM5S 3G4Canada
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Liang H, Yuan F, Johnston A, Gao C, Choubisa H, Gao Y, Wang Y, Sagar LK, Sun B, Li P, Bappi G, Chen B, Li J, Wang Y, Dong Y, Ma D, Gao Y, Liu Y, Yuan M, Saidaminov MI, Hoogland S, Lu Z, Sargent EH. High Color Purity Lead-Free Perovskite Light-Emitting Diodes via Sn Stabilization. Adv Sci (Weinh) 2020; 7:1903213. [PMID: 32328423 PMCID: PMC7175260 DOI: 10.1002/advs.201903213] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Indexed: 05/20/2023]
Abstract
Perovskite-based light-emitting diodes (PeLEDs) are now approaching the upper limits of external quantum efficiency (EQE); however, their application is currently limited by reliance on lead and by inadequate color purity. The Rec. 2020 requires Commission Internationale de l'Eclairage coordinates of (0.708, 0.292) for red emitters, but present-day perovskite devices only achieve (0.71, 0.28). Here, lead-free PeLEDs are reported with color coordinates of (0.706, 0.294)-the highest purity reported among red PeLEDs. The variation of the emission spectrum is also evaluated as a function of temperature and applied potential, finding that emission redshifts by <3 nm under low temperature and by <0.3 nm V-1 with operating voltage. The prominent oxidation pathway of Sn is identified and this is suppressed with the aid of H3PO2. This strategy prevents the oxidation of the constituent precursors, through both its moderate reducing properties and through its forming complexes with the perovskite that increase the energetic barrier toward Sn oxidation. The H3PO2 additionally seeds crystal growth during film formation, improving film quality. PeLEDs are reported with an EQE of 0.3% and a brightness of 70 cd m-2; this is the record among reported red-emitting, lead-free PeLEDs.
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Affiliation(s)
- Hongyan Liang
- School of Materials Science and EngineeringTianjin UniversityTianjin300350P. R. China
| | - Fanglong Yuan
- Department of Materials Science and EngineeringUniversity of TorontoTorontoONM5S 3E4Canada
| | - Andrew Johnston
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Congcong Gao
- School of Materials Science and EngineeringTianjin UniversityTianjin300350P. R. China
| | - Hitarth Choubisa
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Yuan Gao
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Ya‐Kun Wang
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Laxmi Kishore Sagar
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Bin Sun
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Peicheng Li
- Department of Materials Science and EngineeringUniversity of TorontoTorontoONM5S 3E4Canada
| | - Golam Bappi
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Bin Chen
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Jun Li
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Yunkun Wang
- State Key Lab for Artificial Microstructure and Mesoscopic PhysicsSchool of PhysicsPeking UniversityBeijing100871China
| | - Yitong Dong
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Dongxin Ma
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Yunan Gao
- State Key Lab for Artificial Microstructure and Mesoscopic PhysicsSchool of PhysicsPeking UniversityBeijing100871China
| | - Yongchang Liu
- School of Materials Science and EngineeringTianjin UniversityTianjin300350P. R. China
| | - Mingjian Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)College of ChemistryNankai UniversityTianjin300071China
| | - Makhsud I. Saidaminov
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
| | - Zheng‐Hong Lu
- Department of Materials Science and EngineeringUniversity of TorontoTorontoONM5S 3E4Canada
| | - Edward H. Sargent
- Department of Electrical and Computer EngineeringUniversity of TorontoTorontoONM5S 3G4Canada
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33
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Hou Y, Aydin E, De Bastiani M, Xiao C, Isikgor FH, Xue DJ, Chen B, Chen H, Bahrami B, Chowdhury AH, Johnston A, Baek SW, Huang Z, Wei M, Dong Y, Troughton J, Jalmood R, Mirabelli AJ, Allen TG, Van Kerschaver E, Saidaminov MI, Baran D, Qiao Q, Zhu K, De Wolf S, Sargent EH. Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon. Science 2020; 367:1135-1140. [PMID: 32139544 DOI: 10.1126/science.aaz3691] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/21/2019] [Accepted: 02/07/2020] [Indexed: 01/19/2023]
Abstract
Stacking solar cells with decreasing band gaps to form tandems presents the possibility of overcoming the single-junction Shockley-Queisser limit in photovoltaics. The rapid development of solution-processed perovskites has brought perovskite single-junction efficiencies >20%. However, this process has yet to enable monolithic integration with industry-relevant textured crystalline silicon solar cells. We report tandems that combine solution-processed micrometer-thick perovskite top cells with fully textured silicon heterojunction bottom cells. To overcome the charge-collection challenges in micrometer-thick perovskites, we enhanced threefold the depletion width at the bases of silicon pyramids. Moreover, by anchoring a self-limiting passivant (1-butanethiol) on the perovskite surfaces, we enhanced the diffusion length and further suppressed phase segregation. These combined enhancements enabled an independently certified power conversion efficiency of 25.7% for perovskite-silicon tandem solar cells. These devices exhibited negligible performance loss after a 400-hour thermal stability test at 85°C and also after 400 hours under maximum power point tracking at 40°C.
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Affiliation(s)
- Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Erkan Aydin
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Michele De Bastiani
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Chuanxiao Xiao
- National Renewable Energy Laboratory (NREL), Golden, CO 80401, USA
| | - Furkan H Isikgor
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ding-Jiang Xue
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Hao Chen
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Behzad Bahrami
- Department of Electrical Engineering, Center for Advanced Photovoltaics, South Dakota State University, Brookings, SD 57007, USA
| | - Ashraful H Chowdhury
- Department of Electrical Engineering, Center for Advanced Photovoltaics, South Dakota State University, Brookings, SD 57007, USA
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Se-Woong Baek
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Ziru Huang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Yitong Dong
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Joel Troughton
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Rawan Jalmood
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Alessandro J Mirabelli
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Thomas G Allen
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Emmanuel Van Kerschaver
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada
| | - Derya Baran
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Qiquan Qiao
- Department of Electrical Engineering, Center for Advanced Photovoltaics, South Dakota State University, Brookings, SD 57007, USA
| | - Kai Zhu
- National Renewable Energy Laboratory (NREL), Golden, CO 80401, USA
| | - Stefaan De Wolf
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia.
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada.
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34
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Chen B, Baek SW, Hou Y, Aydin E, De Bastiani M, Scheffel B, Proppe A, Huang Z, Wei M, Wang YK, Jung EH, Allen TG, Van Kerschaver E, García de Arquer FP, Saidaminov MI, Hoogland S, De Wolf S, Sargent EH. Enhanced optical path and electron diffusion length enable high-efficiency perovskite tandems. Nat Commun 2020; 11:1257. [PMID: 32152324 PMCID: PMC7062737 DOI: 10.1038/s41467-020-15077-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 02/19/2020] [Indexed: 11/09/2022] Open
Abstract
Tandem solar cells involving metal-halide perovskite subcells offer routes to power conversion efficiencies (PCEs) that exceed the single-junction limit; however, reported PCE values for tandems have so far lain below their potential due to inefficient photon harvesting. Here we increase the optical path length in perovskite films by preserving smooth morphology while increasing thickness using a method we term boosted solvent extraction. Carrier collection in these films - as made - is limited by an insufficient electron diffusion length; however, we further find that adding a Lewis base reduces the trap density and enhances the electron-diffusion length to 2.3 µm, enabling a 19% PCE for 1.63 eV semi-transparent perovskite cells having an average near-infrared transmittance of 85%. The perovskite top cell combined with solution-processed colloidal quantum dot:organic hybrid bottom cell leads to a PCE of 24%; while coupling the perovskite cell with a silicon bottom cell yields a PCE of 28.2%.
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Affiliation(s)
- Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Se-Woong Baek
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Erkan Aydin
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Michele De Bastiani
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Benjamin Scheffel
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Andrew Proppe
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Ziru Huang
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Eui-Hyuk Jung
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Thomas G Allen
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Emmanuel Van Kerschaver
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - F Pelayo García de Arquer
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada
| | - Stefaan De Wolf
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada.
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35
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Ma D, Todorović P, Meshkat S, Saidaminov MI, Wang YK, Chen B, Li P, Scheffel B, Quintero-Bermudez R, Fan JZ, Dong Y, Sun B, Xu C, Zhou C, Hou Y, Li X, Kang Y, Voznyy O, Lu ZH, Ban D, Sargent EH. Chloride Insertion-Immobilization Enables Bright, Narrowband, and Stable Blue-Emitting Perovskite Diodes. J Am Chem Soc 2020; 142:5126-5134. [PMID: 32150404 DOI: 10.1021/jacs.9b12323] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Metal halide perovskites show promise for light-emitting diodes (LEDs) owing to their facile manufacture and excellent optoelectronic performance, including high color purity and spectral stability, especially in the green region. However, for blue perovskite LEDs, the emission spectrum line width is broadened to over 25 nm by the coexistence of multiple reduced-dimensional perovskite domains, and the spectral stability is poor, with an undesirable shift (over 7 nm) toward longer wavelengths under operating conditions, degradation that occurs due to phase separation when mixed halides are employed. Here we demonstrate chloride insertion-immobilization, a strategy that enables blue perovskite LEDs, the first to exhibit narrowband (line width of 18 nm) and spectrally stable (no wavelength shift) performance. We prepare bromide-based perovskites and then employ organic chlorides for dynamic treatment, inserting and in situ immobilizing chlorides to blue-shift and stabilize the emission. We achieve sky-blue LEDs with a record luminance over 5100 cd/m2 at 489 nm, and an operating half-life of 51 min at 1500 cd/m2. By device structure optimization, we further realize an improved EQE of 5.2% at 479 nm and an operating half-life of 90 min at 100 cd/m2.
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Affiliation(s)
- Dongxin Ma
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Petar Todorović
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Shadi Meshkat
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Peicheng Li
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4, Canada
| | - Benjamin Scheffel
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Rafael Quintero-Bermudez
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - James Z Fan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Yitong Dong
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Bin Sun
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Chao Xu
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Chun Zhou
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Xiyan Li
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Yuetong Kang
- Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Oleksandr Voznyy
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4, Canada
| | - Dayan Ban
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
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36
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Wei M, Xiao K, Walters G, Lin R, Zhao Y, Saidaminov MI, Todorović P, Johnston A, Huang Z, Chen H, Li A, Zhu J, Yang Z, Wang YK, Proppe AH, Kelley SO, Hou Y, Voznyy O, Tan H, Sargent EH. Combining Efficiency and Stability in Mixed Tin-Lead Perovskite Solar Cells by Capping Grains with an Ultrathin 2D Layer. Adv Mater 2020; 32:e1907058. [PMID: 32030824 DOI: 10.1002/adma.201907058] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/02/2020] [Indexed: 05/26/2023]
Abstract
The development of narrow-bandgap (Eg ≈ 1.2 eV) mixed tin-lead (Sn-Pb) halide perovskites enables all-perovskite tandem solar cells. Whereas pure-lead halide perovskite solar cells (PSCs) have advanced simultaneously in efficiency and stability, achieving this crucial combination remains a challenge in Sn-Pb PSCs. Here, Sn-Pb perovskite grains are anchored with ultrathin layered perovskites to overcome the efficiency-stability tradeoff. Defect passivation is achieved both on the perovskite film surface and at grain boundaries, an approach implemented by directly introducing phenethylammonium ligands in the antisolvent. This improves device operational stability and also avoids the excess formation of layered perovskites that would otherwise hinder charge transport. Sn-Pb PSCs with fill factors of 79% and a certified power conversion efficiency (PCE) of 18.95% are reported-among the highest for Sn-Pb PSCs. Using this approach, a 200-fold enhancement in device operating lifetime is achieved relative to the nonpassivated Sn-Pb PSCs under full AM1.5G illumination, and a 200 h diurnal operating time without efficiency drop is achieved under filtered AM1.5G illumination.
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Affiliation(s)
- Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Ke Xiao
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Grant Walters
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Renxing Lin
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Yongbiao Zhao
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Petar Todorović
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Ziru Huang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Haijie Chen
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Aidong Li
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Jia Zhu
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Zhenyu Yang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Andrew H Proppe
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3G4, Canada
| | - Shana O Kelley
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3G4, Canada
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, M5S 3M2, Canada
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Oleksandr Voznyy
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Hairen Tan
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
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37
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Na Quan L, Ma D, Zhao Y, Voznyy O, Yuan H, Bladt E, Pan J, García de Arquer FP, Sabatini R, Piontkowski Z, Emwas AH, Todorović P, Quintero-Bermudez R, Walters G, Fan JZ, Liu M, Tan H, Saidaminov MI, Gao L, Li Y, Anjum DH, Wei N, Tang J, McCamant DW, Roeffaers MBJ, Bals S, Hofkens J, Bakr OM, Lu ZH, Sargent EH. Edge stabilization in reduced-dimensional perovskites. Nat Commun 2020; 11:170. [PMID: 31924790 PMCID: PMC6954198 DOI: 10.1038/s41467-019-13944-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 12/09/2019] [Indexed: 11/09/2022] Open
Abstract
Reduced-dimensional perovskites are attractive light-emitting materials due to their efficient luminescence, color purity, tunable bandgap, and structural diversity. A major limitation in perovskite light-emitting diodes is their limited operational stability. Here we demonstrate that rapid photodegradation arises from edge-initiated photooxidation, wherein oxidative attack is powered by photogenerated and electrically-injected carriers that diffuse to the nanoplatelet edges and produce superoxide. We report an edge-stabilization strategy wherein phosphine oxides passivate unsaturated lead sites during perovskite crystallization. With this approach, we synthesize reduced-dimensional perovskites that exhibit 97 ± 3% photoluminescence quantum yields and stabilities that exceed 300 h upon continuous illumination in an air ambient. We achieve green-emitting devices with a peak external quantum efficiency (EQE) of 14% at 1000 cd m-2; their maximum luminance is 4.5 × 104 cd m-2 (corresponding to an EQE of 5%); and, at 4000 cd m-2, they achieve an operational half-lifetime of 3.5 h.
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Affiliation(s)
- Li Na Quan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Dongxin Ma
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Yongbiao Zhao
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada.,Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, ON, M5S 3E4, Canada
| | - Oleksandr Voznyy
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Haifeng Yuan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada.,Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Eva Bladt
- EMAT, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Jun Pan
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.,College of Materials of Science and Engineering, Zhejiang University of Technology, Hangzhou, China
| | - F Pelayo García de Arquer
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Randy Sabatini
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Zachary Piontkowski
- Department of Chemistry, University of Rochester, 120 Trustee Rd., Rochester, NY, NY14627, USA
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Petar Todorović
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Rafael Quintero-Bermudez
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Grant Walters
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - James Z Fan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Mengxia Liu
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Hairen Tan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Liang Gao
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada.,Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 430074, Wuhan, China
| | - Yiying Li
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, ON, M5S 3E4, Canada
| | - Dalaver H Anjum
- Core Labs, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Nini Wei
- Core Labs, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 430074, Wuhan, China
| | - David W McCamant
- Department of Chemistry, University of Rochester, 120 Trustee Rd., Rochester, NY, NY14627, USA
| | - Maarten B J Roeffaers
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Sara Bals
- EMAT, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Johan Hofkens
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium.,Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| | - Osman M Bakr
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, ON, M5S 3E4, Canada.
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada.
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Chen H, Wei Q, Saidaminov MI, Wang F, Johnston A, Hou Y, Peng Z, Xu K, Zhou W, Liu Z, Qiao L, Wang X, Xu S, Li J, Long R, Ke Y, Sargent EH, Ning Z. Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines. Adv Mater 2019; 31:e1903559. [PMID: 31566819 DOI: 10.1002/adma.201903559] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/02/2019] [Indexed: 05/18/2023]
Abstract
Large-bandgap perovskites offer a route to improve the efficiency of energy capture in photovoltaics when employed in the front cell of perovskite-silicon tandems. Implementing perovskites as the front cell requires an inverted (p-i-n) architecture; this architecture is particularly effective at harnessing high-energy photons and is compatible with ionic-dopant-free transport layers. Here, a power conversion efficiency of 21.6% is reported, the highest among inverted perovskite solar cells (PSCs). Only by introducing a secondary amine into the perovskite structure to form MA1- x DMAx PbI3 (MA is methylamine and DMA is dimethylamine) are defect density and carrier recombination suppressed to enable record performance. It is also found that the controlled inclusion of DMA increases the hydrophobicity and stability of films in ambient operating conditions: encapsulated devices maintain over 80% of their efficiency following 800 h of operation at the maximum power point, 30 times longer than reported in the best prior inverted PSCs. The unencapsulated devices show record operational stability in ambient air among PSCs.
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Affiliation(s)
- Hao Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Science, Beijing, 100049, P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai, 200050, P. R. China
| | - Qi Wei
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Fei Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Zijian Peng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Kaimin Xu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Wenjia Zhou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Zhenghao Liu
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
| | - Lu Qiao
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, P. R. China
| | - Xiao Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Siwen Xu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Jiangyu Li
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
- Department of Mechanical Engineering, University of Washington, Seattle, WA, 98195-2600, USA
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, P. R. China
| | - Youqi Ke
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Zhijun Ning
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
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40
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Pan J, Li X, Gong X, Yin J, Zhou D, Sinatra L, Huang R, Liu J, Chen J, Dursun I, El‐Zohry AM, Saidaminov MI, Sun H, Mohammed OF, Ye C, Sargent EH, Bakr OM. Halogen Vacancies Enable Ligand‐Assisted Self‐Assembly of Perovskite Quantum Dots into Nanowires. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909109] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jun Pan
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
- College of Materials of Science and EngineeringZhejiang University of Technology Hangzhou Zhejiang 310014 P. R. China
| | - Xiyan Li
- Department of Electrical and Computer EngineeringUniversity of Toronto Toronto Ontario M5S 3G4 Canada
| | - Xiwen Gong
- Department of Electrical and Computer EngineeringUniversity of Toronto Toronto Ontario M5S 3G4 Canada
| | - Jun Yin
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Dianli Zhou
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Lutfan Sinatra
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Renwu Huang
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Jiakai Liu
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Jie Chen
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Ibrahim Dursun
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Ahmed M. El‐Zohry
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Makhsud I. Saidaminov
- Department of Electrical and Computer EngineeringUniversity of Toronto Toronto Ontario M5S 3G4 Canada
| | - Hong‐Tao Sun
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou Jiangsu 215123 P. R. China
| | - Omar F. Mohammed
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
| | - Changhui Ye
- College of Materials of Science and EngineeringZhejiang University of Technology Hangzhou Zhejiang 310014 P. R. China
| | - Edward H. Sargent
- Department of Electrical and Computer EngineeringUniversity of Toronto Toronto Ontario M5S 3G4 Canada
| | - Osman M. Bakr
- Division of Physical Science and Engineering (PSE)King Abdullah University of Science and Technology (KAUST) Thuwal, Jeddah 23955 Saudi Arabia
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41
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Pan J, Li X, Gong X, Yin J, Zhou D, Sinatra L, Huang R, Liu J, Chen J, Dursun I, El-Zohry AM, Saidaminov MI, Sun HT, Mohammed OF, Ye C, Sargent EH, Bakr OM. Halogen Vacancies Enable Ligand-Assisted Self-Assembly of Perovskite Quantum Dots into Nanowires. Angew Chem Int Ed Engl 2019; 58:16077-16081. [PMID: 31529587 DOI: 10.1002/anie.201909109] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/13/2019] [Indexed: 12/21/2022]
Abstract
Interest has been growing in defects of halide perovskites in view of their intimate connection with key material optoelectronic properties. In perovskite quantum dots (PQDs), the influence of defects is even more apparent than in their bulk counterparts. By combining experiment and theory, we report herein a halide-vacancy-driven, ligand-directed self-assembly process of CsPbBr3 PQDs. With the assistance of oleic acid and didodecyldimethylammonium sulfide, surface-Br-vacancy-rich CsPbBr3 PQDs self-assemble into nanowires (NWs) that are 20-60 nm in width and several millimeters in length. The NWs exhibit a sharp photoluminescence profile (≈18 nm full-width at-half-maximum) that peaks at 525 nm. Our findings provide insight into the defect-correlated dynamics of PQDs and defect-assisted fabrication of perovskite materials and devices.
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Affiliation(s)
- Jun Pan
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia.,College of Materials of Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Xiyan Li
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Xiwen Gong
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Jun Yin
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Dianli Zhou
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Lutfan Sinatra
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Renwu Huang
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Jiakai Liu
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Jie Chen
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Ibrahim Dursun
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Ahmed M El-Zohry
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Hong-Tao Sun
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Omar F Mohammed
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Changhui Ye
- College of Materials of Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Osman M Bakr
- Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
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42
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Sabatini RP, Bappi G, Bicanic KT, Fan F, Hoogland S, Saidaminov MI, Sagar LK, Voznyy O, Sargent EH. Temperature-Induced Self-Compensating Defect Traps and Gain Thresholds in Colloidal Quantum Dots. ACS Nano 2019; 13:8970-8976. [PMID: 31310518 DOI: 10.1021/acsnano.9b02834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Continuous-wave (CW) lasing was recently achieved in colloidal quantum dots (CQDs) by lowering the threshold through the introduction of biaxial strain. However, the CW laser threshold is still much higher than the femtosecond threshold. This must be addressed before electrically injected lasing can be realized. Here we investigate the relationship between threshold and temperature and find a subpicosecond recombination process that proceeds very efficiently at temperatures reached during CW excitation. We combine density functional theory and molecular dynamics simulations to explore potential candidates for such a process, and find that crystal defects having thermally vibrating energy levels can become electronic traps-i.e., they can protrude into the bandgap-when they are sufficiently distorted at higher temperatures. We find that biaxially strained CQDs, which have a lower femtosecond laser threshold than traditional CQDs, result in less heat for a given transparency/gain level and thus undergo this trapping to a lower extent. We also propose methods to tailor CQDs to avoid self-compensating defect traps.
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Affiliation(s)
- Randy P Sabatini
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Golam Bappi
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Kristopher T Bicanic
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Fengjia Fan
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Laxmi K Sagar
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Oleksandr Voznyy
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
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Gao Y, Walters G, Qin Y, Chen B, Min Y, Seifitokaldani A, Sun B, Todorovic P, Saidaminov MI, Lough A, Tongay S, Hoogland S, Sargent EH. Electro-Optic Modulation in Hybrid Metal Halide Perovskites. Adv Mater 2019; 31:e1808336. [PMID: 30811666 DOI: 10.1002/adma.201808336] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/07/2019] [Indexed: 06/09/2023]
Abstract
Rapid and efficient conversion of electrical signals to optical signals is needed in telecommunications and data network interconnection. The linear electro-optic (EO) effect in noncentrosymmetric materials offers a pathway to such conversion. Conventional inorganic EO materials make on-chip integration challenging, while organic nonlinear molecules suffer from thermodynamic molecular disordering that decreases the EO coefficient of the material. It has been posited that hybrid metal halide perovskites could potentially combine the advantages of inorganic materials (stable crystal orientation) with those of organic materials (solution processing). Here, layered metal halide perovskites are reported and investigated for in-plane birefringence and linear electro-optic response. Phenylmethylammonium lead chloride (PMA2 PbCl4 ) crystals are grown that exhibit a noncentrosymmetric space group. Birefringence measurements and Raman spectroscopy confirm optical and structural anisotropy in the material. By applying an electric field on the crystal surface, the linear EO effect in PMA2 PbCl4 is reported and its EO coefficient is determined to be 1.40 pm V-1 . This is the first demonstration of this effect in hybrid metal halide perovskites, materials that feature both highly ordered crystalline structures and solution processability. The in-plane birefringence and electro-optic response reveal that layered perovskite crystals could be further explored for potential applications in polarizing optics and EO modulation.
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Affiliation(s)
- Yuan Gao
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Grant Walters
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Ying Qin
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287, USA
| | - Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Yimeng Min
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Ali Seifitokaldani
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Bin Sun
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Petar Todorovic
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Alan Lough
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Sefaattin Tongay
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287, USA
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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Tan F, Tan H, Saidaminov MI, Wei M, Liu M, Mei A, Li P, Zhang B, Tan CS, Gong X, Zhao Y, Kirmani AR, Huang Z, Fan JZ, Quintero-Bermudez R, Kim J, Zhao Y, Voznyy O, Gao Y, Zhang F, Richter LJ, Lu ZH, Zhang W, Sargent EH. In Situ Back-Contact Passivation Improves Photovoltage and Fill Factor in Perovskite Solar Cells. Adv Mater 2019; 31:e1807435. [PMID: 30740780 DOI: 10.1002/adma.201807435] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/14/2019] [Indexed: 06/09/2023]
Abstract
Organic-inorganic hybrid perovskite solar cells (PSCs) have seen a rapid rise in power conversion efficiencies in recent years; however, they still suffer from interfacial recombination and charge extraction losses at interfaces between the perovskite absorber and the charge-transport layers. Here, in situ back-contact passivation (BCP) that reduces interfacial and extraction losses between the perovskite absorber and the hole transport layer (HTL) is reported. A thin layer of nondoped semiconducting polymer at the perovskite/HTL interface is introduced and it is shown that the use of the semiconductor polymer permits-in contrast with previously studied insulator-based passivants-the use of a relatively thick passivating layer. It is shown that a flat-band alignment between the perovskite and polymer passivation layers achieves a high photovoltage and fill factor: the resultant BCP enables a photovoltage of 1.15 V and a fill factor of 83% in 1.53 eV bandgap PSCs, leading to an efficiency of 21.6% in planar solar cells.
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Affiliation(s)
- Furui Tan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
- Key Laboratory of Photovoltaic Materials, Department of Physics and Electronics, Henan University, Kaifeng, Henan, 475004, China
| | - Hairen Tan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Mengxia Liu
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Anyi Mei
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Peicheng Li
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
| | - Bowen Zhang
- Key Laboratory of Photovoltaic Materials, Department of Physics and Electronics, Henan University, Kaifeng, Henan, 475004, China
| | - Chih-Shan Tan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Xiwen Gong
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Yongbiao Zhao
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Ahmad R Kirmani
- Materials Science and Engineering Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD, 20899, USA
| | - Ziru Huang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - James Z Fan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Rafael Quintero-Bermudez
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Junghwan Kim
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Yicheng Zhao
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
| | - Oleksandr Voznyy
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
| | - Yueyue Gao
- Key Laboratory of Photovoltaic Materials, Department of Physics and Electronics, Henan University, Kaifeng, Henan, 475004, China
| | - Feng Zhang
- Key Laboratory of Photovoltaic Materials, Department of Physics and Electronics, Henan University, Kaifeng, Henan, 475004, China
| | - Lee J Richter
- Materials Science and Engineering Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD, 20899, USA
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
| | - Weifeng Zhang
- Key Laboratory of Photovoltaic Materials, Department of Physics and Electronics, Henan University, Kaifeng, Henan, 475004, China
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 3G4, Canada
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Askerka M, Li Z, Lempen M, Liu Y, Johnston A, Saidaminov MI, Zajacz Z, Sargent EH. Learning-in-Templates Enables Accelerated Discovery and Synthesis of New Stable Double Perovskites. J Am Chem Soc 2019; 141:3682-3690. [DOI: 10.1021/jacs.8b13420] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Mikhail Askerka
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, ON, Canada M5S 3G4
| | - Ziliang Li
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, ON, Canada M5S 3G4
| | - Mathieu Lempen
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, ON, Canada M5S 3G4
| | - Yanan Liu
- Department of Earth Sciences, University of Toronto, 22 Russell Street, Toronto, ON, Canada M5S 3B1
| | - Andrew Johnston
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, ON, Canada M5S 3G4
| | - Makhsud I. Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, ON, Canada M5S 3G4
| | - Zoltan Zajacz
- Department of Earth Sciences, University of Toronto, 22 Russell Street, Toronto, ON, Canada M5S 3B1
| | - Edward H. Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, ON, Canada M5S 3G4
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Li J, Che F, Pang Y, Zou C, Howe JY, Burdyny T, Edwards JP, Wang Y, Li F, Wang Z, De Luna P, Dinh CT, Zhuang TT, Saidaminov MI, Cheng S, Wu T, Finfrock YZ, Ma L, Hsieh SH, Liu YS, Botton GA, Pong WF, Du X, Guo J, Sham TK, Sargent EH, Sinton D. Copper adparticle enabled selective electrosynthesis of n-propanol. Nat Commun 2018; 9:4614. [PMID: 30397203 PMCID: PMC6218481 DOI: 10.1038/s41467-018-07032-0] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 10/10/2018] [Indexed: 11/12/2022] Open
Abstract
The electrochemical reduction of carbon monoxide is a promising approach for the renewable production of carbon-based fuels and chemicals. Copper shows activity toward multi-carbon products from CO reduction, with reaction selectivity favoring two-carbon products; however, efficient conversion of CO to higher carbon products such as n-propanol, a liquid fuel, has yet to be achieved. We hypothesize that copper adparticles, possessing a high density of under-coordinated atoms, could serve as preferential sites for n-propanol formation. Density functional theory calculations suggest that copper adparticles increase CO binding energy and stabilize two-carbon intermediates, facilitating coupling between adsorbed *CO and two-carbon intermediates to form three-carbon products. We form adparticle-covered catalysts in-situ by mediating catalyst growth with strong CO chemisorption. The new catalysts exhibit an n-propanol Faradaic efficiency of 23% from CO reduction at an n-propanol partial current density of 11 mA cm-2.
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Affiliation(s)
- Jun Li
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Fanglin Che
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Yuanjie Pang
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Chengqin Zou
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
- Institute of New-Energy Materials, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, China
| | - Jane Y Howe
- Hitachi High Technologies America, Inc., 22610 Gateway Center Drive, Suite 100, Clarksburg, MD, 20871, USA
| | - Thomas Burdyny
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
- Materials for Energy Conversion and Storage, Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands
| | - Jonathan P Edwards
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
| | - Yuhang Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Fengwang Li
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Ziyun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Phil De Luna
- Department of Materials Science and Engineering, University of Toronto, 194 College Street, Toronto, ON, M5S 3E4, Canada
| | - Cao-Thang Dinh
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Tao-Tao Zhuang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada
| | - Shaobo Cheng
- Canadian Center for Electron Microscopy, McMaster University, Hamilton, ON, L8S 4M1, Canada
| | - Tianpin Wu
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Y Zou Finfrock
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
- Science Division, Canadian Light Source Inc., 44 Innovation Boulevard, Saskatoon, SK, S7N 2V3, Canada
| | - Lu Ma
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Shang-Hsien Hsieh
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Department of Physics, Tamkang University, 151 Yingzhuan Road, Tamsui District, 25137, New Taipei City, Taiwan, ROC
| | - Yi-Sheng Liu
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Gianluigi A Botton
- Canadian Center for Electron Microscopy, McMaster University, Hamilton, ON, L8S 4M1, Canada
| | - Way-Faung Pong
- Department of Physics, Tamkang University, 151 Yingzhuan Road, Tamsui District, 25137, New Taipei City, Taiwan, ROC
| | - Xiwen Du
- Institute of New-Energy Materials, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, China
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, ON, N6A 5B7, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada.
| | - David Sinton
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada.
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47
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Kim J, Ouellette O, Voznyy O, Wei M, Choi J, Choi MJ, Jo JW, Baek SW, Fan J, Saidaminov MI, Sun B, Li P, Nam DH, Hoogland S, Lu ZH, García de Arquer FP, Sargent EH. Butylamine-Catalyzed Synthesis of Nanocrystal Inks Enables Efficient Infrared CQD Solar Cells. Adv Mater 2018; 30:e1803830. [PMID: 30276885 DOI: 10.1002/adma.201803830] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 08/21/2018] [Indexed: 05/05/2023]
Abstract
The best-performing colloidal-quantum-dot (CQD) photovoltaic devices suffer from charge recombination within the quasi-neutral region near the back hole-extracting junction. Graded architectures, which provide a widened depletion region at the back junction of device, could overcome this challenge. However, since today's best materials are processed using solvents that lack orthogonality, these architectures have not yet been implemented using the best-performing CQD solids. Here, a new CQD ink that is stable in nonpolar solvents is developed via a neutral donor ligand that functions as a phase-transfer catalyst. This enables the realization of an efficient graded architecture that, with an engineered band-alignment at the back junction, improves the built-in field and charge extraction. As a result, optimized IR CQD solar cells (Eg ≈ 1.3 eV) exhibiting a power conversion efficiency (PCE) of 12.3% are reported. The strategy is applied to small-bandgap (1 eV) IR CQDs to augment the performance of perovskite and crystalline silicon (cSi) 4-terminal tandem solar cells. The devices show the highest PCE addition achieved using a solution-processed active layer: a value of +5% when illuminated through a 1.58 eV bandgap perovskite front filter, providing a pathway to exceed PCEs of 23% in 4T tandem configurations with IR CQD PVs.
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Affiliation(s)
- Junghwan Kim
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Olivier Ouellette
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Oleksandr Voznyy
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Jongmin Choi
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Min-Jae Choi
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Jea Woong Jo
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Se-Woong Baek
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - James Fan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Bin Sun
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Peicheng Li
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
| | - Dae-Hyun Nam
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
| | - F Pelayo García de Arquer
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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Rong Y, Hu Y, Mei A, Tan H, Saidaminov MI, Seok SI, McGehee MD, Sargent EH, Han H. Challenges for commercializing perovskite solar cells. Science 2018; 361:361/6408/eaat8235. [DOI: 10.1126/science.aat8235] [Citation(s) in RCA: 898] [Impact Index Per Article: 149.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Perovskite solar cells (PSCs) have witnessed rapidly rising power conversion efficiencies, together with advances in stability and upscaling. Despite these advances, their limited stability and need to prove upscaling remain crucial hurdles on the path to commercialization. We summarize recent advances toward commercially viable PSCs and discuss challenges that remain. We expound the development of standardized protocols to distinguish intrinsic and extrinsic degradation factors in perovskites. We review accelerated aging tests in both cells and modules and discuss the prediction of lifetimes on the basis of degradation kinetics. Mature photovoltaic solutions, which have demonstrated excellent long-term stability in field applications, offer the perovskite community valuable insights into clearing the hurdles to commercialization.
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García de Arquer FP, Bushuyev OS, De Luna P, Dinh CT, Seifitokaldani A, Saidaminov MI, Tan CS, Quan LN, Proppe A, Kibria MG, Kelley SO, Sinton D, Sargent EH. 2D Metal Oxyhalide-Derived Catalysts for Efficient CO 2 Electroreduction. Adv Mater 2018; 30:e1802858. [PMID: 30091157 DOI: 10.1002/adma.201802858] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/12/2018] [Indexed: 05/28/2023]
Abstract
Electrochemical reduction of CO2 is a compelling route to store renewable electricity in the form of carbon-based fuels. Efficient electrochemical reduction of CO2 requires catalysts that combine high activity, high selectivity, and low overpotential. Extensive surface reconstruction of metal catalysts under high productivity operating conditions (high current densities, reducing potentials, and variable pH) renders the realization of tailored catalysts that maximize the exposure of the most favorable facets, the number of active sites, and the oxidation state all the more challenging. Earth-abundant transition metals such as tin, bismuth, and lead have been proven stable and product-specific, but exhibit limited partial current densities. Here, a strategy that employs bismuth oxyhalides as a template from which 2D bismuth-based catalysts are derived is reported. The BiOBr-templated catalyst exhibits a preferential exposure of highly active Bi ( 11¯0 ) facets. Thereby, the CO2 reduction reaction selectivity is increased to over 90% Faradaic efficiency and simultaneously stable current densities of up to 200 mA cm-2 are achieved-more than a twofold increase in the production of the energy-storage liquid formic acid compared to previous best Bi catalysts.
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Affiliation(s)
- F Pelayo García de Arquer
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
| | - Oleksandr S Bushuyev
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
- Leslie Dan Faculty of Pharmacy, Faculty of Medicine, Biochemistry, University of Toronto, Toronto, ON, M5S 3M2, Canada
| | - Phil De Luna
- Department of Materials Science Engineering, University of Toronto, 27 King's College Circle, Toronto, ON, M5S 1A1, Canada
| | - Cao-Thang Dinh
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Ali Seifitokaldani
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Chih-Shan Tan
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Li Na Quan
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Andrew Proppe
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Md Golam Kibria
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
| | - Shana O Kelley
- Leslie Dan Faculty of Pharmacy, Faculty of Medicine, Biochemistry, University of Toronto, Toronto, ON, M5S 3M2, Canada
| | - David Sinton
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, ON, M5S 1A4, Canada
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50
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Ferreira AC, Létoublon A, Paofai S, Raymond S, Ecolivet C, Rufflé B, Cordier S, Katan C, Saidaminov MI, Zhumekenov AA, Bakr OM, Even J, Bourges P. Elastic Softness of Hybrid Lead Halide Perovskites. Phys Rev Lett 2018; 121:085502. [PMID: 30192590 DOI: 10.1103/physrevlett.121.085502] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Indexed: 05/17/2023]
Abstract
Much recent attention has been devoted towards unraveling the microscopic optoelectronic properties of hybrid organic-inorganic perovskites. Here we investigate by coherent inelastic neutron scattering spectroscopy and Brillouin light scattering, low frequency acoustic phonons in four different hybrid perovskite single crystals: MAPbBr_{3}, FAPbBr_{3}, MAPbI_{3}, and α-FAPbI_{3} (MA: methylammonium, FA: formamidinium). We report a complete set of elastic constants characterized by a very soft shear modulus C_{44}. Further, a tendency towards an incipient ferroelastic transition is observed in FAPbBr_{3}. We observe a systematic lower sound group velocity in the technologically important iodide-based compounds compared to the bromide-based ones. The findings suggest that low thermal conductivity and hot phonon bottleneck phenomena are expected to be enhanced by low elastic stiffness, particularly in the case of the ultrasoft α-FAPbI_{3}.
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Affiliation(s)
- A C Ferreira
- Laboratoire Léon Brillouin, CEA-CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, F-35000, Rennes, France
| | - A Létoublon
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, F-35000, Rennes, France
| | - S Paofai
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - S Raymond
- Univ. Grenoble Alpes, CEA, INAC, MEM, 38000 Grenoble, France
| | - C Ecolivet
- Univ Rennes, CNRS, IPR (Institut de Physique de Rennes) - UMR 6251, F-35000 Rennes, France
| | - B Rufflé
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, Montpellier, FR-34095, France
| | - S Cordier
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - C Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - M I Saidaminov
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center, KAUST Solar Center, Physical Sciences and Engineering Division (PSE), Thuwal 23955-6900, Saudi Arabia
| | - A A Zhumekenov
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center, KAUST Solar Center, Physical Sciences and Engineering Division (PSE), Thuwal 23955-6900, Saudi Arabia
| | - O M Bakr
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center, KAUST Solar Center, Physical Sciences and Engineering Division (PSE), Thuwal 23955-6900, Saudi Arabia
| | - J Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, F-35000, Rennes, France
| | - P Bourges
- Laboratoire Léon Brillouin, CEA-CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
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