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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] [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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2
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Lu Y, Qu K, Zhang T, He Q, Pan J. Metal Halide Perovskite Nanowires: Controllable Synthesis, Mechanism, and Application in Optoelectronic Devices. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:419. [PMID: 36770381 PMCID: PMC9919554 DOI: 10.3390/nano13030419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/08/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Metal halide perovskites are promising energy materials because of their high absorption coefficients, long carrier lifetimes, strong photoluminescence, and low cost. Low-dimensional halide perovskites, especially one-dimensional (1D) halide perovskite nanowires (NWs), have become a hot research topic in optoelectronics owing to their excellent optoelectronic properties. Herein, we review the synthetic strategies and mechanisms of halide perovskite NWs in recent years, such as hot injection, vapor phase growth, selfassembly, and solvothermal synthesis. Furthermore, we summarize their applications in optoelectronics, including lasers, photodetectors, and solar cells. Finally, we propose possible perspectives for the development of halide perovskite NWs.
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Affiliation(s)
| | | | | | - Qingquan He
- Correspondence: (Q.H.); (J.P.); Tel.: +86-1-520-193-3096(Q.H.); +86-1-348-617-8387(J.P.)
| | - Jun Pan
- Correspondence: (Q.H.); (J.P.); Tel.: +86-1-520-193-3096(Q.H.); +86-1-348-617-8387(J.P.)
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3
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El-Zohry AM, Turedi B, Alsalloum A, Maity P, Bakr OM, Ooi BS, Mohammed OF. Ultrafast transient infrared spectroscopy for probing trapping states in hybrid perovskite films. Commun Chem 2022; 5:67. [PMID: 36698014 PMCID: PMC9814551 DOI: 10.1038/s42004-022-00683-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/09/2022] [Indexed: 01/28/2023] Open
Abstract
Studying the charge dynamics of perovskite materials is a crucial step to understand the outstanding performance of these materials in various fields. Herein, we utilize transient absorption in the mid-infrared region, where solely electron signatures in the conduction bands are monitored without external contributions from other dynamical species. Within the measured range of 4000 nm to 6000 nm (2500-1666 cm-1), the recombination and the trapping processes of the excited carriers could be easily monitored. Moreover, we reveal that within this spectral region the trapping process could be distinguished from recombination process, in which the iodide-based films show more tendencies to trap the excited electrons in comparison to the bromide-based derivatives. The trapping process was assigned due to the emission released in the mid-infrared region, while the traditional band-gap recombination process did not show such process. Various parameters have been tested such as film composition, excitation dependence and the probing wavelength. This study opens new frontiers for the transient mid-infrared absorption to assign the trapping process in perovskite films both qualitatively and quantitatively, along with the potential applications of perovskite films in the mid-IR region.
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Affiliation(s)
- Ahmed M. El-Zohry
- grid.45672.320000 0001 1926 5090Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabia ,grid.10548.380000 0004 1936 9377Department of Physics, AlbaNova Center, Stockholm University, 10691 Stockholm, Sweden
| | - Bekir Turedi
- grid.45672.320000 0001 1926 5090KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabia
| | - Abdullah Alsalloum
- grid.45672.320000 0001 1926 5090KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabia
| | - Partha Maity
- grid.45672.320000 0001 1926 5090Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabia
| | - Osman M. Bakr
- grid.45672.320000 0001 1926 5090KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabia
| | - Boon S. Ooi
- grid.45672.320000 0001 1926 5090Photonics Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabia
| | - Omar F. Mohammed
- grid.45672.320000 0001 1926 5090Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900 Saudi Arabia
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4
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Xu Q, Rao Z, Yang Y, Jin B, He X, Lai J, He T, Yang L, Zhang L, Liang Y. Spray deposited polycrystalline MAPbBr 3 thick films for hole-transport-material free solar cells. Chem Commun (Camb) 2022; 58:5172-5175. [PMID: 35388382 DOI: 10.1039/d2cc00596d] [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
A spray deposition procedure for the fabrication of polycrystalline MAPbBr3 thick films (20-100 μm) is developed and highly efficient (>5.5% under AM1.5 sunlight) hole-transport-material free perovskite solar cells are successfully made with 40 μm thick MAPbBr3 films.
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Affiliation(s)
- Qien Xu
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China.
| | - Zhengdan Rao
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China.
| | - Yiting Yang
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China. .,School of Chemistry and Chemical Engineering, Qinghai Normal University, Xi'ning City, Qinghai Province, 810016, China
| | - Bo Jin
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China.
| | - Xiaotian He
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China.
| | - Jiaxuan Lai
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China.
| | - Tiantian He
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China.
| | - Lin Yang
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xi'ning City, Qinghai Province, 810016, China
| | - Limin Zhang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou City, Gansu Province, China, 730000
| | - Yongqi Liang
- College of Chemistry and Chemical Engineering, Key laboratory of Advanced Catalysis of Gansu Province, Lanzhou University, Lanzhou City, Gansu Province 730000, China.
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5
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Giant Third-Order Nonlinear Response of Mixed Perovskite Nanocrystals. MATERIALS 2022; 15:ma15010389. [PMID: 35009532 PMCID: PMC8746593 DOI: 10.3390/ma15010389] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/28/2021] [Accepted: 01/02/2022] [Indexed: 01/20/2023]
Abstract
Mixed (FAPbI3)0.92(MAPbBr3)0.08 perovskite thin films exhibit strong nonlinear optical responses, rendering them promising candidates for applications in photonics and optical communications. In this work, we present a systematic study on the ultrafast third-order nonlinear optical processes in mixed perovskite nanocrystals (NCs) by exploring the generation of third harmonic radiation and giant two-photon absorption-based photoluminescence (PL) when excited by femtosecond laser pulses of a 1030 nm central wavelength. A comparative analysis of the coherent third harmonic generation in the thin-film-containing perovskite nanocrystals has shown a 40× enhancement of the third harmonic signal compared to the signal generated in the pure quartz substrate. The cubic dependence of the third-nonlinear optical response of the (FAPbI3)0.92(MAPbBr3)0.08 perovskites on the intensity of the driving radiation was identified using broadband 38 femtosecond driving pulses. The positive nonlinear refractive index (γ = +1.4 × 10−12 cm2·W−1) is found to play an important role in improving the phase-matching conditions of the interacting pulses by generating a strong third order harmonic. The giant two-photon absorption (TPA)-assisted PL peak was monitored and a blue shift of the PL was obtained in the higher intensity range of the laser pulses, with the absorption coefficient β estimated to be~+7.0 cm·MW−1 at a 1030 nm laser wavelength.
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Lei Y, Xu Y, Wang M, Zhu G, Jin Z. Origin, Influence, and Countermeasures of Defects in Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005495. [PMID: 33759357 DOI: 10.1002/smll.202005495] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/24/2020] [Indexed: 05/08/2023]
Abstract
Defects are considered to be one of the most significant factors that compromise the power conversion efficiencies and long-term stability of perovskite solar cells. Therefore, it is urgent to have a profound understanding of their formation and influence mechanism, so as to take corresponding measures to suppress or even completely eliminate their adverse effects on device performance. Herein, the possible origins of the defects in metal halide perovskite films and their impacts on the device performance are analyzed, and then various methods to reduce defect density are introduced in detail. Starting from the internal and interfacial aspects of the metal halide perovskite films, several ways to improve device performance and long-term stability including additive engineering, surface passivation, and other physical treatments (annealing engineering), etc., are further elaborated. Finally, the further understanding of defects and the development trend of passivation strategies are prospected.
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Affiliation(s)
- Yutian Lei
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Youkui Xu
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Meng Wang
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Ge Zhu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, College of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian, 116600, China
| | - Zhiwen Jin
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
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7
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Yanagida M, Shirai Y, Khadka DB, Miyano K. Photoinduced ion-redistribution in CH 3NH 3PbI 3 perovskite solar cells. Phys Chem Chem Phys 2020; 22:25118-25125. [PMID: 33118563 DOI: 10.1039/d0cp04350h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We use photoinduced absorption spectroscopy (PAS) to study the ionic motion in CH3NH3PbI3 perovskite solar cells, consisting of indium tin oxide (ITO)/NiOx/perovskite/phenyl-C61-butyric-acid-methyl ester (PCBM)/aluminum-doped zinc oxide (AZO)/ITO. We observed a slow (∼50 mHz) spectral blue shift (∼10-4 eV) under modulated 520 nm illumination, which we interpreted in terms of the modulation in the bulk ion density. Numerical simulation shows that the mobile ion moves in and out from the double layers at the perovskite/charge transport layer interfaces in order to recover the bulk charge neutrality tipped off-balance by the photocarriers. The diffusion coefficient of the ion is 10-10 to 10-11 cm2 s-1, when we assume that the characteristic time constant of the ion motion is governed by the diffusion.
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Affiliation(s)
- Masatoshi Yanagida
- Centre for Green Research on Energy and Environmental Materials, National Institute for Materials Science (NIMS) 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
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Xing J, Zhao C, Zou Y, Kong W, Yu Z, Shan Y, Dong Q, Zhou D, Yu W, Guo C. Modulating the optical and electrical properties of MAPbBr 3 single crystals via voltage regulation engineering and application in memristors. LIGHT, SCIENCE & APPLICATIONS 2020; 9:111. [PMID: 32637078 PMCID: PMC7327067 DOI: 10.1038/s41377-020-00349-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/09/2020] [Accepted: 06/15/2020] [Indexed: 05/31/2023]
Abstract
Defect density is one of the most significant characteristics of perovskite single crystals (PSCs) that determines their optical and electrical properties, but few strategies are available to tune this property. Here, we demonstrate that voltage regulation is an efficient method to tune defect density, as well as the optical and electrical properties of PSCs. A three-step carrier transport model of MAPbBr3 PSCs is proposed to explore the defect regulation mechanism and carrier transport dynamics via an applied bias. Dynamic and steady-state photoluminescence measurements subsequently show that the surface defect density, average carrier lifetime, and photoluminescence intensity can be efficiently tuned by the applied bias. In particular, when the regulation voltage is 20 V (electrical poling intensity is 0.167 V μm-1), the surface defect density of MAPbBr3 PSCs is reduced by 24.27%, the carrier lifetime is prolonged by 32.04%, and the PL intensity is increased by 112.96%. Furthermore, a voltage-regulated MAPbBr3 PSC memristor device shows an adjustable multiresistance, weak ion migration effect and greatly enhanced device stability. Voltage regulation is a promising engineering technique for developing advanced perovskite optoelectronic devices.
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Affiliation(s)
- Jun Xing
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Chen Zhao
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Yuting Zou
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Wenchi Kong
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Zhi Yu
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Yuwei Shan
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Qingfeng Dong
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, 130012 Changchun, China
| | - Ding Zhou
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
| | - Weili Yu
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Chunlei Guo
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- The Institute of Optics, University of Rochester, Rochester, NY 14627 USA
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Schuster O, Wientjes P, Shrestha S, Levchuk I, Sytnyk M, Matt GJ, Osvet A, Batentschuk M, Heiss W, Brabec CJ, Fauster T, Niesner D. Looking beyond the Surface: The Band Gap of Bulk Methylammonium Lead Iodide. NANO LETTERS 2020; 20:3090-3097. [PMID: 32283026 DOI: 10.1021/acs.nanolett.9b05068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Despite the intense research on photovoltaic lead halide perovskites, reported optical properties as basic as the absorption onset and the optical band gap vary significantly. To unambiguously answer the question whether the discrepancies are a result of differences between bulk and "near-surface" material, we perform two nonlinear spectroscopies with drastically different information depths on single crystals of the prototypical (CH3NH3)PbI3 methylammonium lead iodide. Two-photon absorption, detected via the resulting generation of carriers and photocurrents (2PI-PC), probes the interband transitions with an information depth in the millimeter range relevant for bulk (single-crystal) material. In contrast, the transient magneto-optical Kerr effect (trMOKE) measured in a reflection geometry determines the excitonic transition energies in the region near (hundreds of nm) the surface which also determine the optical properties in typical thin films. To identify differences between structural phases, we sweep the sample temperature across the orthorhombic-tetragonal phase transition temperature. In the application-relevant room-temperature tetragonal phase (at 170 K), we find a bulk band gap of 1.55 ± 0.01 eV, whereas in the near-surface region excitonic transitions occur at 1.59 ± 0.01 eV. The latter value is consistent with previous reflectance measurements by other groups and considerably higher than the bulk band gap. The small band gap of the bulk material explains the extended infrared absorption of crystalline perovskite solar cells, the low-energy bands which carry optically driven spin-polarized currents, and the narrow bandwidth of crystalline perovskite photodetectors making use of the spectral filtering at the surface.
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Affiliation(s)
- Oskar Schuster
- Lehrstuhl für Festkörperphysik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 7, 91058 Erlangen, Germany
| | - Peter Wientjes
- Lehrstuhl für Festkörperphysik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 7, 91058 Erlangen, Germany
| | - Shreetu Shrestha
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
| | - Ievgen Levchuk
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
| | - Mykhailo Sytnyk
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Energy Campus Nürnberg, 90429 Nürnberg, Germany
| | - Gebhard J Matt
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
| | - Andres Osvet
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
| | - Miroslaw Batentschuk
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
| | - Wolfgang Heiss
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Energy Campus Nürnberg, 90429 Nürnberg, Germany
| | - Christoph J Brabec
- Institute of Materials for Electronics and Energy Technology (I-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstrasse 7, 91058 Erlangen, Germany
- Helmholtz-Institut Erlangen-Nürnberg (HiErN), Forschungszentrum Jülich, Immerwahrstrasse 2, 91058 Erlangen, Germany
| | - Thomas Fauster
- Lehrstuhl für Festkörperphysik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 7, 91058 Erlangen, Germany
| | - Daniel Niesner
- Lehrstuhl für Festkörperphysik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 7, 91058 Erlangen, Germany
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10
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Geng X, Wang F, Tian H, Feng Q, Zhang H, Liang R, Shen Y, Ju Z, Gou GY, Deng N, Li YT, Ren J, Xie D, Yang Y, Ren TL. Ultrafast Photodetector by Integrating Perovskite Directly on Silicon Wafer. ACS NANO 2020; 14:2860-2868. [PMID: 32027117 DOI: 10.1021/acsnano.9b06345] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single-crystal (SC) perovskite is currently a promising material due to its high quantum efficiency and long diffusion length. However, the reported perovskite photodetection range (<800 nm) and response time (>10 μs) are still limited. Here, to promote the development of perovskite-integrated optoelectronic devices, this work demonstrates wider photodetection range and shorter response time perovskite photodetector by integrating the SC CH3NH3PbBr3 (MAPbBr3) perovskite on silicon (Si). The Si/MAPbBr3 heterojunction photodetector with an improved interface exhibits high-speed, broad-spectrum, and long-term stability performances. To the best of our knowledge, the measured detectable spectrum (405-1064 nm) largely expands the widest response range reported in previous perovskite-based photodetectors. In addition, the rise time is as fast as 520 ns, which is comparable to that of commercial germanium photodetectors. Moreover, the Si/MAPbBr3 device can maintain excellent photocurrent performance for up to 3 months. Furthermore, typical gray scale face imaging is realized by scanning the Si/MAPbBr3 single-pixel photodetector. This work using an ultrafast photodetector by directly integrating perovskite on Si can promote advances in next-generation integrated optoelectronic technology.
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Affiliation(s)
- Xiangshun Geng
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Fangwei Wang
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - He Tian
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Qixin Feng
- Department of Physics, Tsinghua University, Beijing 100084, China
| | - Hainan Zhang
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Renrong Liang
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yang Shen
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Zhenyi Ju
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Guang-Yang Gou
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Ningqin Deng
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yu-Tao Li
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Jun Ren
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Dan Xie
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yi Yang
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Tian-Ling Ren
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
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11
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Adnan M, Baumberg JJ, Vijaya Prakash G. Linear and nonlinear optical probing of various excitons in 2D inorganic-organic hybrid structures. Sci Rep 2020; 10:2615. [PMID: 32054972 PMCID: PMC7018830 DOI: 10.1038/s41598-020-59457-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 11/27/2019] [Indexed: 11/10/2022] Open
Abstract
Nonlinear optical properties, such as two-(or multi-) photon absorption (2PA), are of special interest for technologically important applications in fast optical switching, in vivo imaging and so on. Highly intense infrared ultrashort pulses probe deep into samples and reveal several underlying structural perturbations (inter-layer distortions, intra-layer crumpling) and also provide information about new excited states and their relaxation. Naturally self-assembled inorganic-organic multiple quantum wells (IO-MQWs) show utility from room-temperature exciton emission features (binding energies ~200–250 meV). These Mott type excitons are highly sensitive to the self-assembly process, inorganic network distortions, thickness and inter-layer distortions of these soft two-dimensional (2D) and weak van der Waal layered hybrids. We demonstrate strong room-temperature nonlinear excitation intensity dependent two-photon absorption induced exciton photoluminescence (2PA-PL) from these IO-MQWs, excited by infrared femtosecond laser pulses. Strongly confined excitons show distinctly different one- and two-photon excited photoluminescence energies: from free-excitons (2.41 eV) coupled to the perfectly aligned MQWs and from energy down-shifted excitons (2.33 eV) that originate from the locally crumpled layered architecture. High intensity femtosecond induced PL from one-photon absorption (1PA-PL) suggests saturation of absorption and exciton-exciton annihilation, with typical reduction in PL radiative relaxation times from 270 ps to 190 ps upon increasing excitation intensities. From a wide range of IR excitation tuning, the origin of 2PA-PL excitation is suggested to arise from exciton dark states which extend below the bandgap. Observed two-photon absorption coefficients (β ~75 cm/GW) and two-photon excitation cross-sections (η2σ2 ~ 110GM), further support the evidence for 2PA excitation origin. Both 1PA- and 2PA-PL spatial mappings over large areas of single crystal platelets demonstrate the co-existence of both free and deep-level crumpled excitons with some traces of defect-induced trap state emission. We conclude that the two-photon absorption induced PL is highly sensitive to the self-assembly process of few to many mono layers, the crystal packing and deep level defects. This study paves a way to tailor the nonlinear properties of many 2D material classes. Our results thus open new avenues for exploring fundamental phenomena and novel optoelectronic applications using layered inorganic-organic and other metal organic frameworks.
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Affiliation(s)
- Mohammad Adnan
- Nanophotonics Lab, Department of Physics, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Jeremy J Baumberg
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, United Kingdom
| | - G Vijaya Prakash
- Nanophotonics Lab, Department of Physics, Indian Institute of Technology Delhi, New Delhi, 110016, India.
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12
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Stavrakas C, Delport G, Zhumekenov AA, Anaya M, Chahbazian R, Bakr OM, Barnard ES, Stranks SD. Visualizing Buried Local Carrier Diffusion in Halide Perovskite Crystals via Two-Photon Microscopy. ACS ENERGY LETTERS 2020; 5:117-123. [PMID: 32055687 PMCID: PMC7009023 DOI: 10.1021/acsenergylett.9b02244] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 11/27/2019] [Indexed: 05/28/2023]
Abstract
Halide perovskites have shown great potential for light emission and photovoltaic applications due to their remarkable electronic properties. Although the device performances are promising, they are still limited by microscale heterogeneities in their photophysical properties. Here, we study the impact of these heterogeneities on the diffusion of charge carriers, which are processes crucial for efficient collection of charges in light-harvesting devices. A photoluminescence tomography technique is developed in a confocal microscope using one- and two-photon excitation to distinguish between local surface and bulk diffusion of charge carriers in methylammonium lead bromide single crystals. We observe a large dispersion of local diffusion coefficients with values between 0.3 and 2 cm2·s-1 depending on the trap density and the morphological environment-a distribution that would be missed from analogous macroscopic or surface measurements. This work reveals a new framework to understand diffusion pathways, which are extremely sensitive to local properties and buried defects.
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Affiliation(s)
- Camille Stavrakas
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Géraud Delport
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Ayan A. Zhumekenov
- Division
of Physical Sciences and Engineering, King
Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Miguel Anaya
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Rosemonde Chahbazian
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Osman M. Bakr
- Division
of Physical Sciences and Engineering, King
Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Edward S. Barnard
- Molecular
Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Samuel D. Stranks
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
- Department
of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, United Kingdom
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13
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Chen Y, Lei Y, Li Y, Yu Y, Cai J, Chiu MH, Rao R, Gu Y, Wang C, Choi W, Hu H, Wang C, Li Y, Song J, Zhang J, Qi B, Lin M, Zhang Z, Islam AE, Maruyama B, Dayeh S, Li LJ, Yang K, Lo YH, Xu S. Strain engineering and epitaxial stabilization of halide perovskites. Nature 2020; 577:209-215. [DOI: 10.1038/s41586-019-1868-x] [Citation(s) in RCA: 255] [Impact Index Per Article: 63.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 11/19/2019] [Indexed: 12/23/2022]
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14
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Weng G, Tian J, Chen S, Xue J, Yan J, Hu X, Chen S, Zhu Z, Chu J. Giant reduction of the random lasing threshold in CH 3NH 3PbBr 3 perovskite thin films by using a patterned sapphire substrate. NANOSCALE 2019; 11:10636-10645. [PMID: 31065661 DOI: 10.1039/c9nr00863b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid organic-inorganic metal halide perovskites are currently arousing enthusiasm and stimulating huge activity across several fields of optoelectronics due to their outstanding properties. In this study, we present the incoherent random lasing (RL) emissions from CH3NH3PbBr3 perovskite thin films on both planar fluorine-doped tin oxide (FTO) substrates and patterned sapphire substrates (PSSs). A detailed examination of the spectral evolution indicates that inelastic exciton-exciton scattering called P-emission is the most plausible mechanism accounting for the lasing emissions. The RL threshold of the perovskite films on PSSs is found to be effectively reduced by more than one order of magnitude from 2.55 to 0.15 μJ per pulse compared to that on FTO substrates. The giant threshold reduction is ascribed to the enhanced random scattering of light and the photon recycling induced by the multireflection processes at the perovskite/PSS interface, which increases the likelihood that the inoperative random rays will re-enter the possible optical loops formed among the perovskite particles, resulting in considerable optical resonance enhancement. The simulation results reveal that the light extraction efficiency on the top facet of the perovskites is significantly increased by approximately 155% by utilizing the PSS instead of the FTO substrate. Moreover, the first direct experimental observation of the multireflection phenomenon of light, as well as the dynamic processes of photon propagation in the composite PSS structure, is presented by Kerr-gate-based time-resolved photoluminescence. Our results provide an effective strategy to achieve high-performance perovskite random lasers and novel light-emitting devices for speckle-free full-field imaging and solid-state lighting applications, by introducing ingeniously designed periodic nano-/microscale optical structures.
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Affiliation(s)
- Guoen Weng
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
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15
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Abstract
The fields of photovoltaics, photodetection and light emission have seen tremendous activity in recent years with the advent of hybrid organic-inorganic perovskites. Yet, there have been far fewer reports of perovskite-based field-effect transistors. The lateral and interfacial transport requirements of transistors make them particularly vulnerable to surface contamination and defects rife in polycrystalline films and bulk single crystals. Here, we demonstrate a spatially-confined inverse temperature crystallization strategy which synthesizes micrometre-thin single crystals of methylammonium lead halide perovskites MAPbX3 (X = Cl, Br, I) with sub-nanometer surface roughness and very low surface contamination. These benefit the integration of MAPbX3 crystals into ambipolar transistors and yield record, room-temperature field-effect mobility up to 4.7 and 1.5 cm2 V−1 s−1 in p and n channel devices respectively, with 104 to 105 on-off ratio and low turn-on voltages. This work paves the way for integrating hybrid perovskite crystals into printed, flexible and transparent electronics. The methylammonium lead halide perovskites have shown excellent optoelectronic properties but the field-effect transistors are much less studied. Here Yu et al. synthesize micrometer-thin crystals of perovskites with low surface contamination and make ambipolar transistor devices with high mobilities.
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16
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Foley BJ, Cuthriell S, Yazdi S, Chen AZ, Guthrie SM, Deng X, Giri G, Lee SH, Xiao K, Doughty B, Ma YZ, Choi JJ. Impact of Crystallographic Orientation Disorders on Electronic Heterogeneities in Metal Halide Perovskite Thin Films. NANO LETTERS 2018; 18:6271-6278. [PMID: 30216078 DOI: 10.1021/acs.nanolett.8b02417] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Metal halide perovskite thin films have achieved remarkable performance in optoelectronic devices but suffer from spatial heterogeneity in their electronic properties. To achieve higher device performance and reliability needed for widespread commercial deployment, spatial heterogeneity of optoelectronic properties in the perovskite thin film needs to be understood and controlled. Clear identification of the causes underlying this heterogeneity, most importantly the spatial heterogeneity in charge trapping behavior, has remained elusive. Here, a multimodal imaging approach consisting of photoluminescence, optical transmission, and atomic force microscopy is utilized to separate electronic heterogeneity from morphology variations in perovskite thin films. By comparing the degree of heterogeneity in highly oriented and randomly oriented polycrystalline perovskite thin film samples, we reveal that disorders in the crystallographic orientation of the grains play a dominant role in determining charge trapping and electronic heterogeneity. This work also demonstrates a polycrystalline thin film with uniform charge trapping behavior by minimizing crystallographic orientation disorder. These results suggest that single crystals may not be required for perovskite thin film based optoelectronic devices to reach their full potential.
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17
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Oranskaia A, Yin J, Bakr OM, Brédas JL, Mohammed OF. Halogen Migration in Hybrid Perovskites: The Organic Cation Matters. J Phys Chem Lett 2018; 9:5474-5480. [PMID: 30187754 DOI: 10.1021/acs.jpclett.8b02522] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
In hybrid perovskite materials, the organic cations are one of the key structural components used to tune the electronic and optical properties of this promising class of materials. Here, we studied the strong impact of organic cations, methylammonium (MA) and formamidinium (FA), on halogen vacancy and interstitial migration, as well as surface degradation in cubic-phase MAPbBr3 and FAPbBr3 crystals using density functional theory calculations. We found Br vacancies and interstitials have much lower formation energies and higher density in MAPbBr3 in comparison to FAPbBr3 crystals. Moreover, the transition energy barrier for Br migration through vacancies within the bulk phase is lower in MAPbBr3 than in FAPbBr3. We also found that FAPbBr3 has a much higher rotation barrier of the organic cation than MAPbBr3, which points to a much stronger H-bonding with Br in the former case. Our results show that incorporating organic cations with the appropriate structure, shape, and strong H-bonding capabilities in hybrid perovskite crystals is very beneficial for suppressing ion migration and thus further improving the performance of hybrid perovskite-based devices.
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Affiliation(s)
- Aleksandra Oranskaia
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Jun Yin
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Osman M Bakr
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Jean-Luc Brédas
- School of Chemistry and Biochemistry, Center for Organic Photonics and Electronics (COPE) , Georgia Institute of Technology , Atlanta , Georgia 30332-0400 , United States
| | - Omar F Mohammed
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
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18
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Wang Q, Bai D, Jin Z, Liu SF. Single-crystalline perovskite wafers with a Cr blocking layer for broad and stable light detection in a harsh environment. RSC Adv 2018; 8:14848-14853. [PMID: 35541345 PMCID: PMC9079962 DOI: 10.1039/c8ra02709a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/15/2018] [Indexed: 11/21/2022] Open
Abstract
Herein, ultrathin (∼35 μm) CH3NH3PbI3 (MAPbI3) single-crystalline wafers have been successfully prepared by using an appropriate geometry-regulated dynamic-flow reaction system. The measurement results proved that the obtained wafers have high crystallinity, and showed broad light absorption from ultraviolet to near infrared (850 nm) which can be attributed to the indirect bandgap. Straight after, such an MAPbI3 wafer was used to fabricate high-quality photodetectors (PDs). On account of its faster carrier transport and significantly reduced defect density, the device exhibits a high photoresponse (R) of 5 A/W and short on/off response (0.039 s/0.017 s). Interestingly, by introducing a Cr interlayer between the MAPbI3 wafer and the Au electrode to avoid the migration of Au, the PD shows nearly no degradation when it works at 200 °C. Furthermore, the device performance shows very little degradation over the course of 60 days of storage under ambient conditions owing to its lack of grain boundaries. We believe the strategy reported here is very promising for achieving broad photodetection in a harsh environment.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science & Engineering, Shaanxi Normal University Xi'an 710119 P. R. China
| | - Dongliang Bai
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science & Engineering, Shaanxi Normal University Xi'an 710119 P. R. China
| | - Zhiwen Jin
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science & Engineering, Shaanxi Normal University Xi'an 710119 P. R. China
| | - Shengzhong Frank Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science & Engineering, Shaanxi Normal University Xi'an 710119 P. R. China
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
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19
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Oksenberg E, Sanders E, Popovitz-Biro R, Houben L, Joselevich E. Surface-Guided CsPbBr 3 Perovskite Nanowires on Flat and Faceted Sapphire with Size-Dependent Photoluminescence and Fast Photoconductive Response. NANO LETTERS 2018; 18:424-433. [PMID: 29210586 DOI: 10.1021/acs.nanolett.7b04310] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
All-inorganic lead halide perovskite nanowires have been the focus of increasing interest since they exhibit improved stability compared to their hybrid organic-inorganic counterparts, while retaining their interesting optical and optoelectronic properties. Arrays of surface-guided nanowires with controlled orientations and morphology are promising as building blocks for various applications and for systematic research. We report the horizontal and aligned growth of CsPbBr3 nanowires with a uniform crystallographic orientation on flat and faceted sapphire surfaces to form arrays with 6-fold and 2-fold symmetries, respectively, along specific directions of the sapphire substrate. We observed waveguiding behavior and diameter-dependent photoluminescence emission well beyond the quantum confinement regime. The arrays were easily integrated into multiple devices, displaying p-type behavior and photoconductivity. Photodetectors based on those nanowires exhibit the fastest rise and decay times for any CsPbBr3-based photodetectors reported so far. One-dimensional arrays of halide perovskite nanowires are a promising platform for investigating the intriguing properties and potential applications of these unique materials.
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Affiliation(s)
- Eitan Oksenberg
- Department of Materials and Interfaces and ‡Chemical Research Support, Weizmann Institute of Science , Rehovot, 76100, Israel
| | - Ella Sanders
- Department of Materials and Interfaces and ‡Chemical Research Support, Weizmann Institute of Science , Rehovot, 76100, Israel
| | - Ronit Popovitz-Biro
- Department of Materials and Interfaces and ‡Chemical Research Support, Weizmann Institute of Science , Rehovot, 76100, Israel
| | - Lothar Houben
- Department of Materials and Interfaces and ‡Chemical Research Support, Weizmann Institute of Science , Rehovot, 76100, Israel
| | - Ernesto Joselevich
- Department of Materials and Interfaces and ‡Chemical Research Support, Weizmann Institute of Science , Rehovot, 76100, Israel
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20
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Sekimoto T, Suzuka M, Yokoyama T, Uchida R, Machida S, Sekiguchi T, Kawano K. Energy level diagram of HC(NH2)2PbI3 single crystal evaluated by electrical and optical analyses. Phys Chem Chem Phys 2018; 20:1373-1380. [DOI: 10.1039/c7cp07477h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Energy level diagram of the HC(NH2)2PbI3 single crystal evaluated in this study.
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Affiliation(s)
| | - Michio Suzuka
- Advanced Research Division
- Panasonic Corporation
- Osaka 570-8501
- Japan
| | | | - Ryusuke Uchida
- Advanced Research Division
- Panasonic Corporation
- Osaka 570-8501
- Japan
| | | | | | - Kenji Kawano
- Advanced Research Division
- Panasonic Corporation
- Osaka 570-8501
- Japan
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21
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Yin J, Maity P, De Bastiani M, Dursun I, Bakr OM, Brédas JL, Mohammed OF. Molecular behavior of zero-dimensional perovskites. SCIENCE ADVANCES 2017; 3:e1701793. [PMID: 29250600 PMCID: PMC5731998 DOI: 10.1126/sciadv.1701793] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 11/13/2017] [Indexed: 05/19/2023]
Abstract
Low-dimensional perovskites offer a rare opportunity to investigate lattice dynamics and charge carrier behavior in bulk quantum-confined solids, in addition to them being the leading materials in optoelectronic applications. In particular, zero-dimensional (0D) inorganic perovskites of the Cs4PbX6 (X = Cl, Br, or I) kind have crystal structures with isolated lead halide octahedra [PbX6]4- surrounded by Cs+ cations, allowing the 0D crystals to exhibit the intrinsic properties of an individual octahedron. Using both experimental and theoretical approaches, we studied the electronic and optical properties of the prototypical 0D perovskite Cs4PbBr6. Our results underline that this 0D perovskite behaves akin to a molecule, demonstrating low electrical conductivity and mobility as well as large polaron binding energy. Density functional theory calculations and transient absorption measurements of Cs4PbBr6 perovskite films reveal the polaron band absorption and strong polaron localization features of the material. A short polaron lifetime of ~2 ps is observed in femtosecond transient absorption experiments, which can be attributed to the fast lattice relaxation of the octahedra and the weak interactions among them.
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Affiliation(s)
- Jun Yin
- KAUST Solar Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Partha Maity
- KAUST Solar Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Michele De Bastiani
- KAUST Solar Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ibrahim Dursun
- KAUST Solar Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M. Bakr
- KAUST Solar Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jean-Luc Brédas
- Center for Organic Photonics and Electronics, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332–0400, USA
- Corresponding author. (O.F.M.); (J.-L.B.)
| | - Omar F. Mohammed
- KAUST Solar Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
- Corresponding author. (O.F.M.); (J.-L.B.)
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22
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Alarousu E, El-Zohry AM, Yin J, Zhumekenov AA, Yang C, Alhabshi E, Gereige I, AlSaggaf A, Malko AV, Bakr OM, Mohammed OF. Ultralong Radiative States in Hybrid Perovskite Crystals: Compositions for Submillimeter Diffusion Lengths. J Phys Chem Lett 2017; 8:4386-4390. [PMID: 28849938 DOI: 10.1021/acs.jpclett.7b01922] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Organic-inorganic hybrid perovskite materials have recently evolved into the leading candidate solution-processed semiconductor for solar cells due to their combination of desirable optical and charge transport properties. Chief among these properties is the long carrier diffusion length, which is essential to optimizing the device architecture and performance. Herein, we used time-resolved photoluminescence (at low excitation fluence, 10.59 μJ·cm-2 upon two-photon excitation), which is the most accurate and direct approach to measure the radiative charge carrier lifetime and diffusion lengths. Lifetimes of about 72 and 4.3 μs for FAPbBr3 and FAPbI3 perovskite single crystals have been recorded, presenting the longest radiative carrier lifetimes reported to date for perovskite materials. Subsequently, carrier diffusion lengths of 107.2 and 19.7 μm are obtained. In addition, we demonstrate the key role of the organic cation units in modulating the carrier lifetime and its diffusion lengths, in which the defect formation energies for FA cations are much higher than those with the MA ones.
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Affiliation(s)
- Erkki Alarousu
- KAUST Solar Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ahmed M El-Zohry
- KAUST Solar Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jun Yin
- KAUST Solar Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ayan A Zhumekenov
- KAUST Solar Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Chen Yang
- KAUST Solar Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Esra Alhabshi
- Saudi Aramco Research & Development Center , Dhahran 31311, Kingdom of Saudi Arabia
| | - Issam Gereige
- Saudi Aramco Research & Development Center , Dhahran 31311, Kingdom of Saudi Arabia
| | - Ahmed AlSaggaf
- Saudi Aramco Research & Development Center , Dhahran 31311, Kingdom of Saudi Arabia
| | - Anton V Malko
- Department of Physics, The University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Osman M Bakr
- KAUST Solar Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
- KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Omar F Mohammed
- KAUST Solar Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
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23
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Diab H, Arnold C, Lédée F, Trippé-Allard G, Delport G, Vilar C, Bretenaker F, Barjon J, Lauret JS, Deleporte E, Garrot D. Impact of Reabsorption on the Emission Spectra and Recombination Dynamics of Hybrid Perovskite Single Crystals. J Phys Chem Lett 2017; 8:2977-2983. [PMID: 28608691 DOI: 10.1021/acs.jpclett.7b00998] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Understanding the surface properties of organic-inorganic lead-based perovskites is of high importance to improve the device's performance. Here, we have investigated the differences between surface and bulk optical properties of CH3NH3PbBr3 single crystals. Depth-resolved cathodoluminescence was used to probe the near-surface region on a depth of a few microns. In addition, we have studied the transmitted luminescence through thicknesses between 50 and 600 μm. In both experiments, the expected spectral shift due to the reabsorption effect has been precisely calculated. We demonstrate that reabsorption explains the important variations reported for the emission energy of single crystals. Single crystals are partially transparent to their own luminescence, and radiative transport is the dominant mechanism for propagation of the excitation in thick crystals. The transmitted luminescence dynamics are characterized by a long rise time and a lengthening of their decay due to photon recycling and light trapping.
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Affiliation(s)
- Hiba Diab
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Christophe Arnold
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
| | - Ferdinand Lédée
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Gaëlle Trippé-Allard
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Géraud Delport
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Christèle Vilar
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
| | - Fabien Bretenaker
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Julien Barjon
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
| | - Jean-Sébastien Lauret
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Emmanuelle Deleporte
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Damien Garrot
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
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Bakr OM, Mohammed OF. Perovskite solar cells: Shedding light on film crystallization. NATURE MATERIALS 2017; 16:601-602. [PMID: 28541310 DOI: 10.1038/nmat4908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Osman M Bakr
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Division of Physical Sciences and Engineering (PSE), Thuwal 23955-6900, Saudi Arabia
| | - Omar F Mohammed
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Division of Physical Sciences and Engineering (PSE), Thuwal 23955-6900, Saudi Arabia
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Ghahremanirad E, Bou A, Olyaee S, Bisquert J. Inductive Loop in the Impedance Response of Perovskite Solar Cells Explained by Surface Polarization Model. J Phys Chem Lett 2017; 8:1402-1406. [PMID: 28287736 DOI: 10.1021/acs.jpclett.7b00415] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The analysis of perovskite solar cells by impedance spectroscopy has provided a rich variety of behaviors that demand adequate interpretation. Two main features have been reported: First, different impedance spectral arcs vary in combination; second, inductive loops and negative capacitance characteristics appear as an intrinsic property of the current configuration of perovskite solar cells. Here we adopt a previously developed surface polarization model based on the assumption of large electric and ionic charge accumulation at the external contact interface. Just from the equations of the model, the impedance spectroscopy response is calculated and explains the mentioned general features. The inductance element in the equivalent circuit is the result of the delay of the surface voltage and depends on the kinetic relaxation time. The model is therefore able to quantitatively describe exotic features of the perovskite solar cell and provides insight into the operation mechanisms of the device.
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Affiliation(s)
- Elnaz Ghahremanirad
- Institute of Advanced Materials (INAM), Universitat Jaume I , 12006 Castelló, Spain
- Nano-photonics and Optoelectronics Research Laboratory (NORLab), Shahid Rajaee Teacher Training University , 16788-15811 Lavizan, Tehran, Iran
| | - Agustín Bou
- Institute of Advanced Materials (INAM), Universitat Jaume I , 12006 Castelló, Spain
| | - Saeed Olyaee
- Nano-photonics and Optoelectronics Research Laboratory (NORLab), Shahid Rajaee Teacher Training University , 16788-15811 Lavizan, Tehran, Iran
| | - Juan Bisquert
- Institute of Advanced Materials (INAM), Universitat Jaume I , 12006 Castelló, Spain
- Department of Chemistry, Faculty of Science, King Abdulaziz University , Jeddah, Saudi Arabia
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