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Prontera CT, Taurino D, Coriolano A, Maggiore A, Pugliese M, Giannuzzi R, Mariano F, Carallo S, Rizzo A, Gigli G, De Marco L, Maiorano V. Role of a corrugated Dion-Jacobson 2D perovskite as an additive in 3D MAPbBr 3 perovskite-based light emitting diodes. NANOSCALE ADVANCES 2023; 5:2508-2516. [PMID: 37143794 PMCID: PMC10153086 DOI: 10.1039/d2na00942k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 03/27/2023] [Indexed: 05/06/2023]
Abstract
Metal halide perovskites represent an intriguing class of materials, and a very promising approach to tune the properties of optoelectronic devices and improve their performance involves the implementation of architectures based on mixed 3D and 2D perovskites. In this work, we investigated the use of a corrugated 2D Dion-Jacobson perovskite as an additive to a classical 3D MAPbBr3 perovskite for applications in light-emitting diodes. Taking advantage of the properties of this emerging class of materials, we studied the effect of a 2D 2-(dimethylamino)ethylamine (DMEN)-based perovskite on the morphological, photophysical, and optoelectronic properties of 3D perovskite thin films. We used α-DMEN perovskite both in a mixture with MAPbBr3 creating mixed 2D/3D phases and as a passivating thin layer deposited on the top of a 3D perovskite polycrystalline film. We observed a beneficial modulation of the thin film surface, a blue shift in the emission spectrum, and enhanced device performance.
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Affiliation(s)
- C T Prontera
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
| | - D Taurino
- Department of Mathematics and Physics "Ennio De Giorgi", University of Salento 73100 Lecce Italy
| | - A Coriolano
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics "Ennio De Giorgi", University of Salento 73100 Lecce Italy
| | - A Maggiore
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
| | - M Pugliese
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
| | - R Giannuzzi
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics "Ennio De Giorgi", University of Salento 73100 Lecce Italy
| | - F Mariano
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
| | - S Carallo
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
| | - A Rizzo
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
| | - G Gigli
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics "Ennio De Giorgi", University of Salento 73100 Lecce Italy
| | - L De Marco
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
| | - V Maiorano
- CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento Via Monteroni 73100 Lecce Italy
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2
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Aminzare M, Jiang J, Mandl GA, Mahshid S, Capobianco JA, Dorval Courchesne NM. Biomolecules incorporated in halide perovskite nanocrystals: synthesis, optical properties, and applications. NANOSCALE 2023; 15:2997-3031. [PMID: 36722934 DOI: 10.1039/d2nr05565a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Halide perovskite nanocrystals (HPNCs) have emerged at the forefront of nanomaterials research over the past two decades. The physicochemical and optoelectronic properties of these inorganic semiconductor nanoparticles can be modulated through the introduction of various ligands. The use of biomolecules as ligands has been demonstrated to improve the stability, luminescence, conductivity and biocompatibility of HPNCs. The rapid advancement of this field relies on a strong understanding of how the structure and properties of biomolecules influences their interactions with HPNCs, as well as their potential to extend applications of HPNCs towards biological applications. This review addresses the role of several classes of biomolecules (amino acids, proteins, carbohydrates, nucleotides, etc.) that have shown promise for improving the performance of HPNCs and their potential applications. Specifically, we have reviewed the recent advances on incorporating biomolecules with HP nanomaterials on the formation, physicochemical properties, and stability of HP compounds. We have also shed light on the potential for using HPs in biological and environmental applications by compiling some recent of proof-of-concept demonstrations. Overall, this review aims to guide the field towards incorporating biomolecules into the next-generation of high-performance HPNCs for biological and environmental applications.
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Affiliation(s)
- Masoud Aminzare
- Department of Chemical Engineering, McGill University, 3610 University Street, Wong Building, Room 4180, Montréal, QC, H3A 0C5, Canada.
| | - Jennifer Jiang
- Department of Chemical Engineering, McGill University, 3610 University Street, Wong Building, Room 4180, Montréal, QC, H3A 0C5, Canada.
| | - Gabrielle A Mandl
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, 7141 Rue Sherbrooke Ouest, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - Sara Mahshid
- Department of Bioengineering, McGill University, 817 Sherbrooke Street West, Macdonald Engineering Building, Room 355, Montréal, QC, H3A 0C3, Canada
| | - John A Capobianco
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, 7141 Rue Sherbrooke Ouest, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - Noémie-Manuelle Dorval Courchesne
- Department of Chemical Engineering, McGill University, 3610 University Street, Wong Building, Room 4180, Montréal, QC, H3A 0C5, Canada.
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Zhu Z, Zeng S, Chen Q, Yang L, Wei C, Chen B, Yu H, Li H, Zhang J, Huang X. One-step synthesis of epitaxial 3D/2D metal halide perovskite heterostructures. Chem Commun (Camb) 2022; 58:13775-13778. [PMID: 36426914 DOI: 10.1039/d2cc05150h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Facile and scalable synthesis of perovskite heterostructures with well-controlled heterointerfaces remains challenging. Herein, we developed a simple one-step solution method to prepare 3D/2D CsPbBr3/PEA2PbBr4 perovskite heterostructures with a well-defined epitaxial structure in the gram scale. The formation mechanism was detailed by using in situ time-resolved photoluminescence (PL) spectroscopy analysis. In addition, a series of 3D/2D epitaxial heterostructures were also prepared by changing the organic cations or halogen anions. Due to the effective charge separation and transfer, photodetectors based on the type-II 3D/2D CsPbBr3/PEA2PbBr4 heterostructures showed up to 120 times higher photoresponsivities and 50 times higher on/off ratios compared to devices based on single component perovskites.
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Affiliation(s)
- Zhaohua Zhu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China. .,Department of Chemistry, City University of Hong Kong, Hong Kong SAR 999077, P. R. China
| | - Shaoyu Zeng
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Qian Chen
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NWPU), 127 West Youyi Road, Xi'an 710072, P. R. China
| | - Lei Yang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Cong Wei
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Bo Chen
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR 999077, P. R. China
| | - Haidong Yu
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NWPU), 127 West Youyi Road, Xi'an 710072, P. R. China
| | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Jian Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Xiao Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
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4
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Baranwal AK, Hayase S. Recent Advancements in Tin Halide Perovskite-Based Solar Cells and Thermoelectric Devices. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4055. [PMID: 36432341 PMCID: PMC9694716 DOI: 10.3390/nano12224055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
The excellent optoelectronic properties of tin halide perovskites (Sn-PVKs) have made them a promising candidate for replacing toxic Pb counterparts. Concurrently, their enormous potential in photon harvesting and thermoelectricity applications has attracted increasing attention. The optoelectronic properties of Sn-PVKs are governed by the flexible nature of SnI6 octahedra, and they exhibit extremely low thermal conductivity. Due to these diverse applications, this review first analyzes the structural properties, optoelectronic properties, defect physics, and thermoelectric properties of Sn-PVKs. Then, recent techniques developed to solve limitations with Sn-PVK-based devices to improve their photoelectric and thermoelectric performance are discussed in detail. Finally, the challenges and prospects for further development of Sn-PVK-based devices are discussed.
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Xiao M, Xiang T, Kim D, Wang M, Zhang W, Ahmadi M, Li T, Wu X, Xu L, Chen P. Superior External Quantum Efficiency of LEDs via Quasi-2D Perovskite Crystals Implanted with Phenethylammonium Acetate. ACS APPLIED MATERIALS & INTERFACES 2022; 14:45352-45363. [PMID: 36178873 DOI: 10.1021/acsami.2c12048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The multiple quantum well structure of a quasi-two-dimensional (quasi-2D) perovskite leads to nonradiative Auger recombination (AR). This is due to high local carrier density in recombination centers, although the radiative recombination is improved by efficient energy transfer. In this study, we suppress the AR by introducing phenethylammonium acetate (PEAAc) into the quasi-2D PEA2Csn-1PbnBr3n+1 perovskite. The recombination centers of n ≥ 4 phases can be promoted because the COO- preferentially coordinates with Pb2+, inhibiting the fast formation of n = 1, 2, 3 phases with phenethylammonium anion (PEA+). Thus, the AR is suppressed due to the lower density of local charge carriers. To balance the AR suppression and decreasing binding energy in promoting the n ≥ 4 phases, the PEAAc:PEABr molar ratios are adjusted. At the optimal molar ratio, perovskite light-emitting diodes (PeLEDs) with a maximum luminescence of ∼29942 cd m-2 and a maximum external quantum efficiency of ∼20.2% are achieved. These results confirm the most efficient PeLEDs based on PEA2Csn-1PbnBr3n+1 without passivation. Moreover, the efficiency roll off is significantly mitigated with a high threshold of over 3.51 mA/cm2. This study develops high-efficiency PeLEDs with a low efficiency rolloff.
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Affiliation(s)
- Meiqin Xiao
- Chongqing key Laboratory of Micro&Nano Structure Optoelectronics, School of Physical Science and Technology, Southwest University, Chongqing400715, People's Republic of China
| | - Ting Xiang
- Chongqing key Laboratory of Micro&Nano Structure Optoelectronics, School of Physical Science and Technology, Southwest University, Chongqing400715, People's Republic of China
| | - Dohyung Kim
- Institute for Advanced Materials and Manufacturing, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee37996, United States
| | - Miaosheng Wang
- Institute for Advanced Materials and Manufacturing, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee37996, United States
| | - Wei Zhang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing400714, People's Republic of China
| | - Mahshid Ahmadi
- Institute for Advanced Materials and Manufacturing, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee37996, United States
| | - Ting Li
- Chongqing key Laboratory of Micro&Nano Structure Optoelectronics, School of Physical Science and Technology, Southwest University, Chongqing400715, People's Republic of China
| | - Xiaoyan Wu
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang621900, People's Republic of China
| | - Long Xu
- Chongqing key Laboratory of Micro&Nano Structure Optoelectronics, School of Physical Science and Technology, Southwest University, Chongqing400715, People's Republic of China
| | - Ping Chen
- Chongqing key Laboratory of Micro&Nano Structure Optoelectronics, School of Physical Science and Technology, Southwest University, Chongqing400715, People's Republic of China
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6
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Mishra JK, Yantara N, Kanwat A, Furuhashi T, Ramesh S, Salim T, Jamaludin NF, Febriansyah B, Ooi ZE, Mhaisalkar S, Sum TC, Hippalgaonkar K, Mathews N. Defect Passivation Using a Phosphonic Acid Surface Modifier for Efficient RP Perovskite Blue-Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34238-34246. [PMID: 35604015 DOI: 10.1021/acsami.2c00899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Defect management strategies are vital for enhancing the performance of perovskite-based optoelectronic devices, such as perovskite-based light-emitting diodes (PeLEDs). As additives can fucntion both as acrystallization modifier and/or defect passivator, a thorough study on the roles of additives is essential, especially for blue emissive Pe-LEDs, where the emission is strictly controlled by the n-domain distribution of the Ruddlesden-Popper (RP, L2An-1PbnX3n+1, where L refers to a bulky cation, while A and X are monovalent cation, and halide anion, respectively) perovskite films. Of the various additives that are available, octyl phosphonic acid (OPA) is of immense interest because of its ability to bind with uncoordinated Pb2+ ( notorious for nonradiative recombination) and therefore passivates them. Here, with the help of various spectroscopic techniques, such as X-ray photon-spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), and photoluminescence quantum yield (PLQY) measurements, we demonstrate the capability of OPA to bind and passivate unpaired Pb2+ defect sites. Modification to crystallization promoting higher n-domain formation is also observed from steady-state and transient absorption (TA) measurements. With OPA treatment, both the PLQY and EQE of the corresponding PeLED showed improvements up to 53% and 3.7% at peak emission wavelength of 485 nm, respectively.
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Affiliation(s)
- Jayanta Kumar Mishra
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Natalia Yantara
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Anil Kanwat
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Tomoki Furuhashi
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Sankaran Ramesh
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
- Energy Research Institute @NTU (ERI@N), Interdisciplinary Graduate Programme, Nanyang Technological University, 50 Nanyang Avenue, S2-B3a-01, Singapore 639798, Singapore
| | - Teddy Salim
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Nur Fadilah Jamaludin
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Benny Febriansyah
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
- Berkeley Educational Alliance for Research in Singapore (BEARS), Ltd., 1 CREATE Way, Singapore 138602, Singapore
| | - Zi En Ooi
- Institute of Materials Research & Engineering, Agency for Science, Technology and Research (A* STAR), Singapore 138632, Singapore
| | - Subodh Mhaisalkar
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Tze Chien Sum
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Kedar Hippalgaonkar
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Institute of Materials Research & Engineering, Agency for Science, Technology and Research (A* STAR), Singapore 138632, Singapore
| | - Nripan Mathews
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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7
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Gunnarsson WB, Xu Z, Noel NK, Rand BP. Improved Charge Balance in Green Perovskite Light-Emitting Diodes with Atomic-Layer-Deposited Al 2O 3. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34247-34252. [PMID: 35353475 DOI: 10.1021/acsami.2c00860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Perovskite light-emitting diodes (LEDs) have experienced a rapid increase in efficiency over the last several years and are now regarded as promising low-cost devices for displays and communication systems. However, it is often challenging to employ ZnO, a well-studied electron transport material, in perovskite LEDs due to chemical instability at the ZnO/perovskite interface and charge injection imbalance caused by the relatively high conductivity of ZnO. In this work, we address these problems by depositing an ultrathin Al2O3 interlayer at the ZnO/perovskite interface, allowing the fabrication of green-emitting perovskite LEDs with a maximum luminance of 21 815 cd/m2. Using atomic layer deposition, we can precisely control the Al2O3 thickness and thus fine-tune the electron injection from ZnO, allowing us to enhance the efficiency and operational stability of our LEDs.
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Affiliation(s)
- William B Gunnarsson
- Department of Electrical and Computer Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Zhaojian Xu
- Department of Electrical and Computer Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Nakita K Noel
- Department of Electrical and Computer Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Princeton Institute for the Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, United States
| | - Barry P Rand
- Department of Electrical and Computer Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
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8
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Gong Y, Ye F, Zhu Q, Yan W, Shen J, Xue KH, Zhu Y, Li C. Highly stable halide perovskites for photocatalysis via multi-dimensional structure design and in situ phase transition. Dalton Trans 2022; 51:11316-11324. [PMID: 35833651 DOI: 10.1039/d2dt01639g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead halide perovskite CsPbBr3 quantum dots (QDs) possess several desirable features which enable them to be promising candidates for photocatalysis. However, the instability caused by their inherent liquid-like ionic properties hampers their further development. Herein, this work employs the surficial molecular modification strategy and a multi-dimensional structure design to ease the instability issue. The additive 2-phenylethanamine bromide (PEABr) can serve as a ligand to compensate for stripping the amine ligands and passivate the surficial bromide vacancy defects of CsPbBr3 QDs in photocatalysis. In addition, PEABr acts as a reactant to form 2D and quasi-2D perovskite nanosheets. The addition of a small amount of these nanosheets into QDs can enhance their general stability due to their unique layered structures. Moreover, PEABr can trigger the phase transition of cubic CsPbBr3 into tetragonal CsPb2Br5. The newly formed Z-scheme homologous heterojunctions further improve the catalytic performance. Simulated photocatalytic dynamics reveals that our multi-dimensional structure favors decreasing the reaction barrier energy and then facilitating the photocatalytic reaction. Therefore, the electron consumption rate of our multi-dimensional perovskites doubles that of pristine CsPbBr3 QDs and also has superior long-term stability.
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Affiliation(s)
- Yiqin Gong
- Shanghai Engineering Research Centre of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Fan Ye
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Qiliang Zhu
- Shanghai Engineering Research Centre of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Wei Yan
- Shanghai Engineering Research Centre of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Jianhua Shen
- Shanghai Engineering Research Centre of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Kan-Hao Xue
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Yihua Zhu
- Shanghai Engineering Research Centre of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Chunzhong Li
- Shanghai Engineering Research Centre of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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9
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Ghasemi M, Zhang Y, Zhou C, Tan C, Choi E, Yun JS, Du A, Yun JH, Jia B, Wen X. Controllable Acceleration and Deceleration of Charge Carrier Transport in Metal-Halide Perovskite Single-Crystal by Cs-Cation Induced Bandgap Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107680. [PMID: 35481722 DOI: 10.1002/smll.202107680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/30/2022] [Indexed: 06/14/2023]
Abstract
Charge carrier transport in materials is of essential importance for photovoltaic and photonic applications. Here, the authors demonstrate a controllable acceleration or deceleration of charge carrier transport in specially structured metal-alloy perovskite (MACs)PbI3 (MA= CH3 NH3 ) single-crystals with a gradient composition of CsPbI3 /(MA1- x Csx )PbI3 /MAPbI3 . Depending on the Cs-cation distribution in the structure and therefore the energy band alignment, two different effects are demonstrated: i) significant acceleration of electron transport across the depth driven by the gradient band alignment and suppression of electron-hole recombination, benefiting for photovoltaic and detector applications; and ii) decelerated electron transport and thus improved radiative carrier recombination and emission efficiency, highly beneficial for light and display applications. At the same time, the top Cs-layer results in hole localization in the top layer and surface passivation. This controllable acceleration and deceleration of electron transport is critical for various applications in which efficient electron-hole separation and suppressed nonradiative electron-hole recombination is demanded.
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Affiliation(s)
- Mehri Ghasemi
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Yurou Zhang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Chunhua Zhou
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Cheng Tan
- Centre for Materials Science, School of Chemistry and Physics, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, QLD, 4000, Australia
| | - Eunyoung Choi
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering (SPREE), University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jae Sung Yun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering (SPREE), University of New South Wales, Sydney, NSW, 2052, Australia
| | - Aijun Du
- Centre for Materials Science, School of Chemistry and Physics, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, QLD, 4000, Australia
| | - Jung-Ho Yun
- Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, Republic of Korea
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Baohua Jia
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Xiaoming Wen
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
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Huang YM, James Singh K, Hsieh TH, Langpoklakpam C, Lee TY, Lin CC, Li Y, Chen FC, Chen SC, Kuo HC, He JH. Gateway towards recent developments in quantum dot-based light-emitting diodes. NANOSCALE 2022; 14:4042-4064. [PMID: 35246672 DOI: 10.1039/d1nr05288h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Quantum dots (QDs), with their excellent photoluminescence, narrow emission linewidth, and wide color coverage, provide unrivaled advantages for advanced display technologies, enabling full-color micro-LED displays. It is indeed critical to have a fundamental understanding of how QD properties affect micro-LED display performance in order to develop the most energy-efficient display device in the near future. However, to take a more detailed look at the stability issues and passivation ways of QDs is essential for accelerating the commercialization of QD-based LED technologies. Knowing about the most recent breakthroughs in QD-based LEDs can give a good indication of how they might be used in shaping the future of displays. In this review, we discuss the characteristics of QD-based LEDs for the applications of display and lighting technologies. Various approaches for synthesis and the stability improvement of QDs are addressed in detail, along with recent advancements towards QD-based LED breakthroughs. Moreover, we summarize our latest research findings in QD-based LEDs, providing valuable information about the potential of QD-based LEDs for future display technologies.
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Affiliation(s)
- Yu-Ming Huang
- Department of Photonics, Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
- Institute of Photonic System, National Yang Ming Chiao Tung University, Tainan 71150, Taiwan
- Semiconductor Research Center, Hon Hai Research Institute, Taipei 11492, Taiwan.
| | - Konthoujam James Singh
- Department of Photonics, Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Tsou-Hwa Hsieh
- Technology Development Center, InnoLux Corporation, Hsinchu 35053, Taiwan
- Institute of Communications Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Catherine Langpoklakpam
- Department of Photonics, Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Tzu-Yi Lee
- Department of Photonics, Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Chien-Chung Lin
- Institute of Photonic System, National Yang Ming Chiao Tung University, Tainan 71150, Taiwan
- Graduate Institute of Photonics and Optoelectronics, Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan.
| | - Yiming Li
- Institute of Communications Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Fang-Chung Chen
- Department of Photonics, Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Shih-Chen Chen
- Semiconductor Research Center, Hon Hai Research Institute, Taipei 11492, Taiwan.
| | - Hao-Chung Kuo
- Department of Photonics, Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
- Semiconductor Research Center, Hon Hai Research Institute, Taipei 11492, Taiwan.
| | - Jr-Hau He
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
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11
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Dessimoz M, Yoo SM, Kanda H, Igci C, Kim H, Nazeeruddin MK. Phase-Pure Quasi-2D Perovskite by Protonation of Neutral Amine. J Phys Chem Lett 2021; 12:11323-11329. [PMID: 34780190 DOI: 10.1021/acs.jpclett.1c03143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Phase control of low-dimensional metal-halide perovskites (LDPs) greatly affects their optoelectronic properties, and phase-pure LDPs are desirable to achieve efficient perovskite optoelectronic devices such as solar cells and light-emitting diodes. Herein, we introduce a method to obtain phase-pure LDP by using a neutral amine, cyclohexylmethyl amine (CHMA). The incorporation of CHMA into a formamidinium lead bromide (FAPbBr3) precursor solution leads to the protonation of the amine that allows the phase transition of 3D FAPbBr3 to phase-pure quasi-2D perovskite (n = 2). For comparison, cyclohexylmethylammonium bromide (CHMABr), which is a conventional form of ammonium halide salt with the same organic moiety to the amine, is used, which resulted in a 2D perovskite (n = 1). The perovskite films fabricated by the two different methodologies are characterized. This study paves the way for further research on the realization of phase-pure perovskites and their relevant optoelectronic devices.
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Affiliation(s)
- Marc Dessimoz
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951 Sion, Switzerland
| | - So-Min Yoo
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951 Sion, Switzerland
| | - Hiroyuki Kanda
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951 Sion, Switzerland
| | - Cansu Igci
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951 Sion, Switzerland
| | - Hobeom Kim
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951 Sion, Switzerland
| | - Mohammad Khaja Nazeeruddin
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951 Sion, Switzerland
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12
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Liu W, Jiang Z, Fan W, Zhang Q, Sun XW. Realizing White Emission of Single-Layer Dual-Color Perovskite Light-Emitting Devices by Modulating the Electroluminescence Emission Spectra. J Phys Chem Lett 2021; 12:10197-10203. [PMID: 34644086 DOI: 10.1021/acs.jpclett.1c02599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dual-color emission in a single perovskite layer would make perovskite light-emitting devices (PLEDs) more competitive compared with other display technologies. However, due to the carrier dynamics in a blended perovskite film and the low reaction activation energy of the halide exchange reaction, it is very difficult to achieve the dual-color emission in a perovskite layer. Here, dual-color electroluminescence (EL) emission in a single perovskite layer has been realized by slowing the energy transfer from wide-bandgap energy levels to narrow-bandgap energy levels. Moreover, the EL spectra can be controlled by modulating the composition of the perovskite layer. When the amount of CH3NH3I(MAI) in the precursor was varied, white emission with CIE coordinates of (0.33, 0.34) could be achieved. Our work proposes a new strategy for white emission from PLEDs. Also, the analysis and discussion of carrier dynamics in this work may help to enhance our understanding of the working mechanism of PLEDs.
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Affiliation(s)
- Wenbo Liu
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
- Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting, Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, and Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Key Laboratory of Energy Conversion and Storage Technologies (Southern University of Science and Technology), Ministry of Education, Shenzhen 518055, China
| | - Zhengyan Jiang
- Key Laboratory of Energy Conversion and Storage Technologies (Southern University of Science and Technology), Ministry of Education, Shenzhen 518055, China
| | - Weijun Fan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Qichun Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Xiao Wei Sun
- Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting, Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, and Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Key Laboratory of Energy Conversion and Storage Technologies (Southern University of Science and Technology), Ministry of Education, Shenzhen 518055, China
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13
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Peng H, Xu L, Sheng Y, Sun W, Yang Y, Deng H, Chen W, Liu J. Highly Conductive Ligand-Free Cs 2 PtBr 6 Perovskite Nanocrystals with a Narrow Bandgap and Efficient Photoelectrochemical Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102149. [PMID: 34423524 DOI: 10.1002/smll.202102149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/11/2021] [Indexed: 06/13/2023]
Abstract
Design of high-performance all-inorganic halide perovskites, especially lead-free perovskites, is key to the broadening of its application prospects. Herein, the authors report the synthesis of ligand-free cesium platinum (IV) bromide nanocrystals (Cs2 PtBr6 NCs), a new kind of vacancy-ordered lead-free perovskite nanomaterial, by a facile one-pot method. The Cs2 PtBr6 NCs exhibits a narrow band gap of 1.32 eV covering the entire visible range, which is supported by density functional theory calculations. Together with their high conductivity, matching energy levels with the work function of carbon electrodes, and excellent environmental stability, this NC displays a cathodic photocurrent density as high as 335 µA cm-2 , two orders of magnitude higher than other perovskites in aqueous solutions without the need of other electron acceptors. These combined properties suggest that the Cs2 PtBr6 NCs have great potentials in a wide range of photoelectronic and photoelectrochemical sensing applications.
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Affiliation(s)
- Huaping Peng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Luyao Xu
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Yilun Sheng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Weiming Sun
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Yu Yang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Haohua Deng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Wei Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Ontario N2L 3G1, Waterloo, Canada
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14
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Yoo YT, Heo DY, Bae SR, Park J, Lee TW, Jang HW, Ahn SH, Kim SY. Tailoring the Structure of Low-Dimensional Halide Perovskite through a Room Temperature Solution Process: Role of Ligands. SMALL METHODS 2021; 5:e2100054. [PMID: 34927919 DOI: 10.1002/smtd.202100054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/27/2021] [Indexed: 06/14/2023]
Abstract
In this study, halide perovskite nanocrystals are synthesized by controlling the ligand length and amount, and investigated the effects on the change in the ligand length and amount on the shape, size, crystal structure, and optical properties of the perovskite nanocrystals. The results reveal the tendency and respective effects of amine and acid ligands on perovskite nanocrystals. The amine ligands bind directly to the perovskite nanocrystals. Consequently, the amine ligands with longer chains interfere with the aggregation of the initially formed nanocrystals, thus limiting the size of the halide perovskite nanocrystals. Similar to the amine ligands, the acid ligands directly bond with the perovskite nanocrystals; however, they are also indirectly distributed around the nanocrystals, thus affecting their structure and dispersion. Consequently, the acid ligands affect the assembly of the initially formed nanocrystals, which determine the shape and crystal structure of the nanocrystals. It is believed that the report will provide useful insight on the synthesis of halide perovskites for application in optoelectronic devices.
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Affiliation(s)
- Young-Taek Yoo
- School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Do Yeon Heo
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Sa-Rang Bae
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Jinwoo Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Tae-Woo Lee
- Department of Materials Science and Engineering, Institute of Engineering Research, Research Institute of Advanced Materials, Nano Systems Institute (NSI), Seoul National University, Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang Hyun Ahn
- School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Soo Young Kim
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, Seoul, 02841, Republic of Korea
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15
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De Giorgi ML, Cretì A, La-Placa MG, Boix PP, Bolink HJ, Lomascolo M, Anni M. Amplified spontaneous emission in thin films of quasi-2D BA 3MA 3Pb 5Br 16 lead halide perovskites. NANOSCALE 2021; 13:8893-8900. [PMID: 33949433 DOI: 10.1039/d0nr08799h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Quasi-2D (two-dimensional) hybrid perovskites are emerging as a new class of materials with high photoluminescence yield and improved stability compared to their three-dimensional (3D) counterparts. Nevertheless, despite their outstanding emission properties, few studies have been reported on amplified spontaneous emission (ASE) and a thorough understanding of the photophysics of these layered materials is still lacking. In this work, we investigate the ASE properties of multilayered quasi-2D BA3MA3Pb5Br16 films through the dependence of the photoluminescence on temperature and provide a novel insight into the emission processes of quasi-2D lead bromide perovskites. We demonstrate that the PL and ASE properties are strongly affected by the presence, above 190 K, of a minor fraction of the high temperature (HT) phase. This phase dominates the PL spectra at low excitation density and strongly affects the ASE properties. In particular, ASE is only present between 13 K and 230 K, and, at higher temperatures, it is suppressed by absorption of charge transfer states of the HT phase. Our results improve the understanding of the difficulties to obtain ASE at room temperature from these quasi-2D materials and are expected to guide possible materials improvement in order to exploit their excellent emission properties also for the realization of low threshold optically pumped lasers.
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Affiliation(s)
- Maria Luisa De Giorgi
- Dipartimento di Matematica e Fisica "Ennio De Giorgi", Universitá del Salento, Via per Arnesano, 73100 Lecce, Italy.
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16
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Gan Z, Cheng Y, Chen W, Loh KP, Jia B, Wen X. Photophysics of 2D Organic-Inorganic Hybrid Lead Halide Perovskites: Progress, Debates, and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2001843. [PMID: 33747717 PMCID: PMC7967069 DOI: 10.1002/advs.202001843] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/01/2020] [Indexed: 05/17/2023]
Abstract
2D organic-inorganic hybrid Ruddlesden-Popper perovskites (RPPs) have recently attracted increasing attention due to their excellent environmental stability, high degree of electronic tunability, and natural multiquantum-well structures. Although there is a rapid development of photoelectronic applications in solar cells, photodetectors, light emitting diodes (LEDs), and lasers based on 2D RPPs, the state-of-the-art performance is far inferior to that of the existing devices because of the limited understanding on fundamental physics, especially special photophysics in carrier dynamics, excitonic fine structures, excitonic quasiparticles, and spin-related effect. Thus, there is still plenty of room to improve the performances of photoelectronic devices based on 2D RPPs by enhancing knowledge on fundamental photophysics. This review highlights the special photophysics of 2D RPPs that is fundamentally different from the conventional 3D congeners. It also provides the most recent progress, debates, challenges, prospects, and in-depth understanding of photophysics in 2D perovskites, which is significant for not only boosting performance of solar cells, LEDs, photodetectors, but also future development of applications in lasers, spintronics, quantum information, and integrated photonic chips.
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Affiliation(s)
- Zhixing Gan
- Center for Future Optoelectronic Functional MaterialsSchool of Computer and Electronic Information/School of Artificial IntelligenceNanjing Normal UniversityNanjing210023China
- College of Materials Science and EngineeringQingdao University of Science and TechnologyQingdao266042China
| | - Yingchun Cheng
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Weijian Chen
- Centre for Translational AtomaterialsFaculty of ScienceEngineering and TechnologySwinburne University of TechnologyJohn StreetHawthornVIC3122Australia
- Australian Centre for Advanced PhotovoltaicsSchool of Photovoltaic and Renewable Energy EngineeringUNSW SydneyKensingtonNSW2052Australia
| | - Kian Ping Loh
- Department of Chemistryand Centre for Advanced 2D Materials and Graphene Research CentreNational University of SingaporeSingapore117543Singapore
| | - Baohua Jia
- Centre for Translational AtomaterialsFaculty of ScienceEngineering and TechnologySwinburne University of TechnologyJohn StreetHawthornVIC3122Australia
| | - Xiaoming Wen
- Centre for Translational AtomaterialsFaculty of ScienceEngineering and TechnologySwinburne University of TechnologyJohn StreetHawthornVIC3122Australia
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17
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Ghosh S, Pradhan B, Zhang Y, Hofkens J, Karki KJ, Materny A. Nature of the different emissive states and strong exciton-phonon couplings in quasi-two-dimensional perovskites derived from phase-modulated two-photon micro-photoluminescence spectroscopy. Phys Chem Chem Phys 2021; 23:3983-3992. [PMID: 33554234 DOI: 10.1039/d0cp05538g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Quasi two-dimensional perovskites have attracted great attention for applications in light-emitting devices and photovoltaics due to their robustness and tunable highly efficient photoluminescence (PL). However, the mechanism of intrinsic PL in these materials is still not fully understood. In this work, we have analysed the nature of the different emissive states and the impact of temperature on the emissions in quasi two-dimensional methyl ammonium lead bromide perovskite (q-MPB) and cesium lead bromide perovskite (q-CPB). We have used spatially resolved phase-modulated two-photon photoluminescence (2PPL) and temperature-dependent 2PPL to characterize the emissions. Our results show that at room temperature, the PL from q-MPB is due to the recombination of excitons and free carriers while the PL from q-CPB is due to the recombination of excitons only. Temperature-dependent measurements show that in both materials the linewidth broadening is due to the interactions between the excitons and optical phonons at high temperatures. Comparing the characteristics of the emissions in the two systems, we conclude that q-CPB is better suited for light emitting devices. With a further optimization to reduce the impact on the environment, q-CPB-based LEDs could perform as well as OLEDs.
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Affiliation(s)
- Supriya Ghosh
- Department of Physics and Earth Sciences, Jacobs University Bremen, Campus Ring 1, 28759, Bremen, Germany.
| | - Bapi Pradhan
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium.
| | - Yiyue Zhang
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium.
| | - Johan Hofkens
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium. and Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Khadga J Karki
- Phutung Research Institute, Devisthan-marg 5, Goldhunga, Tarakeshwor 5, Kathmandu, 44611, Nepal.
| | - Arnulf Materny
- Department of Physics and Earth Sciences, Jacobs University Bremen, Campus Ring 1, 28759, Bremen, Germany.
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18
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Jiang W, Kim B, Chae H. Phenethylamine ligand engineering of red InP quantum dots for improving the efficiency of quantum dot light-emitting diodes. OPTICS LETTERS 2020; 45:5800-5803. [PMID: 33057288 DOI: 10.1364/ol.405520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
In this Letter, red-emitting multi-shelled indium phosphide (InP) quantum dots (QDs) were synthesized using the safe phosphorus precursor tris(dimethylamino)phosphine ((DMA)3P). The long-chain ligands of oleylamine (OAm) in the (DMA)3P phosphide source-based InP QDs were partially exchanged with short-chain ligands of phenethylamine (PEA) in the core formation process, and the resulting InP QDs were applied to quantum dot light-emitting diodes (QLEDs). The short-chain ligands of PEA with the π-conjugated benzene ring improved the charge transport and electrical conduction of the QLEDs with (DMA)3P phosphide source-based InP QDs. The PEA-engineering of InP QDs improved their maximum quantum yield from 71% to 85.5% with the full-width at half-maximum of 62 nm. Furthermore, the maximum external quantum efficiency of QLEDs with the PEA-engineered InP QDs improved from 1.9% to 3.5%, and their maximum power efficiency increased from 2.8 to 6.0 lm/W. This Letter demonstrates that engineering the core formation process with the short-chain ligands of PEA provides an efficient and facile way to improve the charge transport and electrical conduction in (DMA)3P phosphide source-based InP QLEDs for electroluminescent devices.
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19
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Gan Z, Chen W, Zhou C, Yu L, Dong L, Jia B, Wen X. Efficient Energy Funnelling by Engineering the Bandgap of a Perovskite: Förster Resonance Energy Transfer or Charge Transfer? J Phys Chem Lett 2020; 11:5963-5971. [PMID: 32603120 DOI: 10.1021/acs.jpclett.0c01860] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Energy funnelling enables directional carrier transfer along cascaded energy levels, which can be employed to significantly improve energy transfer efficiency and photoelectronic performances. However, the exact mechanism is still under intensive debate on whether Förster resonance energy transfer (FRET) or charge transfer (CT) is playing the dominant role, hindering broad practical device design and applications. Herein, a spectroscopic method is developed to unveil the energy funnelling mechanism by comparing and modeling the photoluminescence (PL) spectra excited by pulsed and continuous-wave (CW) lasers. The applicability of this method is verified in a typical energy funnelling system constructed by engineering the bandgap of a perovskite. Composite hexagonal microplates (MPs) with FAPbBr3, FAPb(BrxI1-x)3, and FAPbI3 (formamidinium = FA) at the surface, middle mezzanine, and bottom layers are synthesized by a two-step chemical vapor deposition (CVD) method, which introduces a directional energy funnelling from wide-bandgap FAPbBr3 to narrow-bandgap FAPbI3. By using the spectroscopic method developed in this work, we reveal that charge transfer is the dominant mechanism for energy funnelling in the FAPbBr3/FAPb(BrxI1-x)3/FAPbI3 sandwich MP. This study not only provides novel insights into the energy funnelling in multiple-bandgap perovskite systems but also develops a widely applicable spectroscopic method to explore the energy funnelling mechanism in other graded bandgap systems.
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Affiliation(s)
- Zhixing Gan
- Jiangsu Key Lab on Optoelectronic Technology, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Weijian Chen
- Centre for Translational Atomaterials, Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia
| | - Chunhua Zhou
- Centre for Translational Atomaterials, Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia
| | - Liyan Yu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Lifeng Dong
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Baohua Jia
- Centre for Translational Atomaterials, Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia
| | - Xiaoming Wen
- Centre for Translational Atomaterials, Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia
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20
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Wang F, Wang Z, Sun W, Wang Z, Bai Y, Hayat T, Alsaedi A, Tan Z. High Performance Quasi-2D Perovskite Sky-Blue Light-Emitting Diodes Using a Dual-Ligand Strategy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002940. [PMID: 32583597 DOI: 10.1002/smll.202002940] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 05/29/2020] [Indexed: 06/11/2023]
Abstract
For quasi-2D perovskite light-emitting diodes, the introduction of insulating bulky cation reduces the charge transport property, leading to lowered brightness and increased turn-on voltage. Herein, a dual-ligand strategy is adopted to prepare perovskite films by using an appropriate ratio of i-butylammonium (iBA) and phenylethylammonium (PEA) as capping ligands. The introduction of iBA enhances the binding energy of the ligands on the surface of the quasi-2D perovskite, and effectively controls the proportion of 2D perovskite to allow more efficient energy transfer, resulting in the great enhancement of the electric and luminescent properties of the perovskite. The photoluminescence (PL) mapping of the perovskite films exhibits that enhanced photoluminescence performance with better uniformity and stronger intensity can be achieved with this dual-ligand strategy. By adjusting the proportion of the two ligands, sky-blue perovskite light-emitting diodes (PeLEDs) with electroluminescence (EL) peak located 485 nm are achieved with a maximum luminance up to 1130 cd m-2 and a maximum external quantum efficiency (EQE) up to 7.84%. In addition, the color stability and device stability are significantly enhanced by using a dual-ligand strategy. This simple and feasible method paves the way for improving the performance of quasi-2D PeLEDs.
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Affiliation(s)
- Fuzhi Wang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Zhenye Wang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Wenda Sun
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Zhibin Wang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Yiming Bai
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Tasawar Hayat
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ahmed Alsaedi
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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21
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Lai WC, Hsieh WM, Yang SH, Yang JC, Guo TF, Chen P, Lin LJ, Hsu HC. High-Performance Perovskite-Based Light-Emitting Diodes from the Conversion of Amorphous Spin-Coated Lead Bromide with Phenethylamine Doping. ACS OMEGA 2020; 5:8697-8706. [PMID: 32337432 PMCID: PMC7178771 DOI: 10.1021/acsomega.0c00191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
Large-grained and well-oriented methylammonium lead tribromide (MAPbBr3) perovskite was formed from the conversion of amorphous lead bromide (PbBr2) doped with phenethylamine (PEA). The addition of PEA ions (with an optimized molar ratio of 0.008%) to the PbBr2 solution assisted the formation of a smooth PEA-doped PbBr2 layer by spin-coating. Then, the PEA-doped PbBr2 thin film would convert into large-grained and well-oriented MAPbBr3 with the help of a solid-vapor reaction under a vaporized methylammonium bromide (MABr) and choline chloride (CC) atmosphere. Furthermore, both PEA and CC would passivate the defects of perovskite to improve the crystal quality of perovskite. By applying this perovskite layer in perovskite light-emitting diodes (PeLEDs), the maximum luminance and current efficiency of PeLEDs could reach 20,869 cd/m2 and 3.99 cd/A, respectively; these values are approximately five and three times larger than those of PeLEDs without PEA. The perovskite converted from spin-coated PbBr2 with a PEA dopant remarkably improved the luminance and current efficiency of its PeLEDs.
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Affiliation(s)
- Wei-Chih Lai
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
- Advanced
Optoelectronic Technology Center, National
Cheng Kung University, Tainan 70101, Taiwan
| | - Wen-Ming Hsieh
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Siou-Huei Yang
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Jen-Chun Yang
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Tzung-Fang Guo
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
- Advanced
Optoelectronic Technology Center, National
Cheng Kung University, Tainan 70101, Taiwan
- Research
Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan
| | - Peter Chen
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
- Advanced
Optoelectronic Technology Center, National
Cheng Kung University, Tainan 70101, Taiwan
- Hierarchical
Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 70101, Taiwan
| | - Li-Jyuan Lin
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsu-Cheng Hsu
- Department
of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
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22
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Guan Z, Shen D, Li M, Ma C, Chen WC, Cui X, Liu B, Lo MF, Tsang SW, Lee CS, Zhang W. Effects of Hydrogen Bonds between Polymeric Hole-Transporting Material and Organic Cation Spacer on Morphology of Quasi-Two-Dimensional Perovskite Grains and Their Performance in Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:9440-9447. [PMID: 31990178 DOI: 10.1021/acsami.9b20750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Perovskite is emerging as a novel emitter in solution-processed light-emitting diodes (LEDs). In these LEDs, morphology, especially the grain size of perovskite, plays a key role in determining electroluminescence performance. Several studies have shown that sizes of the perovskite grains can be controlled by the contact angle between the perovskite solution and the substrate. In this work, we found that in the quasi-two-dimensional (2D) system, the perovskite grain size can be substantially refined when there are hydrogen bonding between the perovskite's organic spacer and the substrates. In fact, for quasi-2D perovskite, with the presence of such hydrogen bond, its effects on the perovskite grain size overshadow the contact angle's effect. We demonstrated that perovskite with refined grains can form amine- or carbazole-based polymers which can form N···H hydrogen bonding with the perovskite's organic spacer. Using these polymers as hole-transporting layers on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate, external quantum efficiency of CsPbBr3-based LEDs can be enhanced from 1.5 to 10.0% without passivation treatment. This work suggests that bonding between perovskite precursors and the substrate can have significant influence on the morphology of the final perovskite grains and their optoelectronic performance.
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Affiliation(s)
- Zhiqiang Guan
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Chemistry , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
- Department of Material Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Dong Shen
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Chemistry , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Menglin Li
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Material Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Chunqing Ma
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Chemistry , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Wen-Cheng Chen
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Chemistry , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Xiao Cui
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Chemistry , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Bin Liu
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Material Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Ming-Fai Lo
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Chemistry , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Sai-Wing Tsang
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Material Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Chemistry , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
| | - Wenjun Zhang
- Center of Super-Diamond and Advanced Films (COSDAF) , City University of Hong Kong , Kowloon , Hong Kong SAR 999077 , P. R. China
- Department of Material Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , P. R. China
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23
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Wang Z, Xu X, Gao L, Yan X, Li L, Yu J. High-Performance Quasi-2D Perovskite Light-Emitting Diodes Via Poly(vinylpyrrolidone) Treatment. NANOSCALE RESEARCH LETTERS 2020; 15:34. [PMID: 32020339 PMCID: PMC7000616 DOI: 10.1186/s11671-020-3260-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 01/20/2020] [Indexed: 06/10/2023]
Abstract
In this work, we fabricate poly(vinylpyrrolidone) (PVP)-treated Ruddlesden-Popper two-dimensional (quasi-2D) PPA2(CsPbBr3)2PbBr4 perovskite light-emitting diodes (PeLEDs) and achieved a peak brightness of 10,700 cd m-2 and peak current efficiency of 11.68 cd A-1, threefold and tenfold higher than that of the pristine device (without PVP), respectively. It can be attributed that the additive of PVP can suppress the pinholes of perovskite films owing to the excellent film-forming property, inhibiting the leakage current. Besides, PVP treatment facilitates the formation of compact perovskite films with defect reduction. Our work paves a novel way for the morphology modulation of quasi-2D perovskite films.
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Affiliation(s)
- Zijun Wang
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, People's Republic of China
| | - Xiaoqiang Xu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, People's Republic of China
| | - Lin Gao
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, People's Republic of China
| | - Xingwu Yan
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
| | - Lu Li
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
| | - Junsheng Yu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, People's Republic of China
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24
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Gao X, Zhang X, Yin W, Wang H, Hu Y, Zhang Q, Shi Z, Colvin VL, Yu WW, Zhang Y. Ruddlesden-Popper Perovskites: Synthesis and Optical Properties for Optoelectronic Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900941. [PMID: 31763136 PMCID: PMC6864510 DOI: 10.1002/advs.201900941] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/15/2019] [Indexed: 05/23/2023]
Abstract
Ruddlesden-Popper perovskites with a formula of (A')2(A) n -1B n X3 n +1 have recently gained widespread interest as candidates for the next generation of optoelectronic devices. The variations of organic cation, metal halide, and the number of layers in the structure lead to the change of crystal structures and properties for different optoelectronic applications. Herein, the different synthetic methods for 2D perovskite crystals and thin films are summarized and compared. The optoelectronic properties and the charge transfer process in the devices are also delved, in particular, for light-emitting diodes and solar cells.
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Affiliation(s)
- Xupeng Gao
- State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and EngineeringJilin UniversityChangchun130012China
| | - Xiangtong Zhang
- State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and EngineeringJilin UniversityChangchun130012China
| | - Wenxu Yin
- State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and EngineeringJilin UniversityChangchun130012China
| | - Hua Wang
- Department of Chemistry and PhysicsLouisiana State UniversityShreveportLA71115USA
| | - Yue Hu
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Qingbo Zhang
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Zhifeng Shi
- Key Laboratory of Materials Physics of Ministry of EducationDepartment of Physics and EngineeringZhengzhou UniversityZhengzhou450052China
| | | | - William W. Yu
- State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and EngineeringJilin UniversityChangchun130012China
- Department of Chemistry and PhysicsLouisiana State UniversityShreveportLA71115USA
| | - Yu Zhang
- State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and EngineeringJilin UniversityChangchun130012China
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25
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Shen Y, Cheng LP, Li YQ, Li W, Chen JD, Lee ST, Tang JX. High-Efficiency Perovskite Light-Emitting Diodes with Synergetic Outcoupling Enhancement. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901517. [PMID: 31012195 DOI: 10.1002/adma.201901517] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/30/2019] [Indexed: 05/15/2023]
Abstract
Perovskite light-emitting diodes (PeLEDs) show great application potential in high-quality flat-panel displays and solid-state lighting due to their steadily improved efficiency, tunable colors, narrow emission peak, and easy solution-processing capability. However, because of high optical confinement and nonradiative charge recombination during electron-photon conversion, the highest reported efficiency of PeLEDs remains far behind that of their conventional counterparts, such as inorganic LEDs, organic LEDs, and quantum-dot LEDs. Here a facile route is demonstrated by adopting bioinspired moth-eye nanostructures at the front electrode/perovskite interface to enhance the outcoupling efficiency of waveguided light in PeLEDs. As a result, the maximum external quantum efficiency and current efficiency of the modified cesium lead bromide (CsPbBr3 ) green-emitting PeLEDs are improved to 20.3% and 61.9 cd A-1 , while retaining spectral and angular independence. Further reducing light loss in the substrate mode using a half-ball lens, efficiencies of 28.2% and 88.7 cd A-1 are achieved, which represent the highest values reported to date for PeLEDs. These results represent a substantial step toward achieving practical applications of PeLEDs.
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Affiliation(s)
- Yang Shen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Li-Peng Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Yan-Qing Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Wei Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Jing-De Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Shuit-Tong Lee
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Jian-Xin Tang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
- Institute of Organic Optoelectronics (IOO), JITRI, Wujiang, Suzhou, 215215, China
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26
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Xu L, Qiang Y, Hu H, Lin P, Wang P, Che S, Sun H, Nie Z, Cui C, Wu F, Yang D, Yu X. Effects of n-butyl amine incorporation on the performance of perovskite light emitting diodes. NANOTECHNOLOGY 2019; 30:105703. [PMID: 30524001 DOI: 10.1088/1361-6528/aaf68c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The efficiency of perovskite light emitting diodes (PeLEDs) is crucially limited by leakage current and nonradiative recombination. Here we introduce n-butyl amine (BA) to modulate the growth of perovskite films as well as improve the performance of PeLEDs, and investigate in detail the effects of BA incorporation on the structural, optical, and electrical characteristics of perovskite films. The results indicate that BA would terminate the grain surface and inhibit crystal growth, leading to increased radiative recombination. However, BA overload would make the films loose and recreate shunt paths. The electrical detriment of BA overload outweighs its optical benefit. As a result, optimal PeLEDs can be obtained only with moderate BA incorporation.
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Affiliation(s)
- Lingbo Xu
- Key Laboratory of Optical Field Manipulation of Zhejiang Province, Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China. State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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27
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Yu JC, Park JH, Lee SY, Song MH. Effect of perovskite film morphology on device performance of perovskite light-emitting diodes. NANOSCALE 2019; 11:1505-1514. [PMID: 30643913 DOI: 10.1039/c8nr08683d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Organic-inorganic hybrid perovskite materials have attracted significant attention in the last few years owing to their high photoluminescence quantum efficiency (PLQE) (of approximately 100%), narrow emission with a low full-width at half maximum (FWHM), and tunable optical bandgaps over the entire visible spectral range. Thus, perovskite materials are regarded as next-generation candidates for light-emitting diode application. Recently, perovskite light-emitting diodes (PeLEDs) with an external quantum efficiency of more than 20% have been successfully fabricated. Moreover, the efficiency and stability of PeLEDs have been significantly improved with the use of high-quality, uniform perovskite films. Here, the recent progress in the morphological control of perovskite films used in PeLEDs is reviewed. The current strategies involved in the morphological control of perovskite films to improve the device performance and long-term stability of PeLEDs via perovskite film modification, interface engineering, and quasi 2D-perovskite, are discussed.
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Affiliation(s)
- Jae Choul Yu
- Department of Materials Science and Engineering and KIST-UNIST center for Convergent Materials/Low Dimensional Carbon Center/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Jong Hyun Park
- Department of Materials Science and Engineering and KIST-UNIST center for Convergent Materials/Low Dimensional Carbon Center/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Sang Yun Lee
- Department of Materials Science and Engineering and KIST-UNIST center for Convergent Materials/Low Dimensional Carbon Center/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Myoung Hoon Song
- Department of Materials Science and Engineering and KIST-UNIST center for Convergent Materials/Low Dimensional Carbon Center/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
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28
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Jamaludin NF, Yantara N, Ng YF, Li M, Goh TW, Thirumal K, Sum TC, Mathews N, Soci C, Mhaisalkar S. Grain Size Modulation and Interfacial Engineering of CH3
NH3
PbBr3
Emitter Films through Incorporation of Tetraethylammonium Bromide. Chemphyschem 2018; 19:1075-1080. [DOI: 10.1002/cphc.201701380] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Nur Fadilah Jamaludin
- Energy Research Institute @ NTU (ERI@N); Nanyang Technological University; Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive Singapore 637553 Singapore
- Interdisciplinary Graduate School; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Natalia Yantara
- Energy Research Institute @ NTU (ERI@N); Nanyang Technological University; Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive Singapore 637553 Singapore
| | - Yan Fong Ng
- Energy Research Institute @ NTU (ERI@N); Nanyang Technological University; Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive Singapore 637553 Singapore
- Interdisciplinary Graduate School; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Mingjie Li
- Division of Physics and Applied Physics; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Teck Wee Goh
- Division of Physics and Applied Physics; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Krishnamoorthy Thirumal
- Energy Research Institute @ NTU (ERI@N); Nanyang Technological University; Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive Singapore 637553 Singapore
| | - Tze Chien Sum
- Division of Physics and Applied Physics; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Nripan Mathews
- Energy Research Institute @ NTU (ERI@N); Nanyang Technological University; Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive Singapore 637553 Singapore
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Cesare Soci
- Division of Physics and Applied Physics; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Subodh Mhaisalkar
- Energy Research Institute @ NTU (ERI@N); Nanyang Technological University; Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive Singapore 637553 Singapore
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
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