1
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Yue X, Ouyang Y, Zhang Z, Wang C, Zu X, Yin Q, Liu Z, Hu Z, Zheng Y, Sun K, Leng Y, Du J. Observation of Hot Carrier Localization Affected by A Cations in Hybrid Perovskites. J Phys Chem Lett 2024; 15:9659-9667. [PMID: 39283242 DOI: 10.1021/acs.jpclett.4c02293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
Organic-inorganic lead halide perovskites (OLHPs) have demonstrated exceptional properties in high-performance photoelectric devices. However, the impact of A-site cations, specifically formamidinium and methylammonium (MA), on the optoelectronic properties of OLHPs, particularly in the context of hot carrier utilization, remains a topic of debate. In this study, we propose a method for characterizing hot carrier transportation by measuring the hot carrier mobility and momentum-dependent transient photocurrent influenced by A-site cations in OLHPs. Our findings reveal that the direction of photon drag current is reversed upon substitution of the MA cation, suggesting the strong localization of hot carriers by the MA cation dipole. Furthermore, the correlation between the hot carrier photoconductivity and the electronic structure in different A-site cation samples indicates that hot carrier mobility in OLHPs can be reduced by >50% due to the influence of A-site cations.
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Affiliation(s)
- Xingyu Yue
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunfei Ouyang
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, China
| | - Zeyu Zhang
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunwei Wang
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Xinzhi Zu
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qinxue Yin
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Zhengzheng Liu
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiping Hu
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yujie Zheng
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, China
| | - Kuan Sun
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, China
| | - Yuxin Leng
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juan Du
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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2
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Zhang ZX, Ni HF, Tang JS, Huang PZ, Luo JQ, Zhang FW, Lin JH, Jia QQ, Teri G, Wang CF, Fu DW, Zhang Y. Metal-Free Perovskite Ferroelectrics with the Most Equivalent Polarization Axes. J Am Chem Soc 2024. [PMID: 39141483 DOI: 10.1021/jacs.4c07268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Ferroelectricity in metal-free perovskites (MFPs) has emerged as an academic hotspot for their lightweight, eco-friendly processability, flexibility, and degradability, with considerable progress including large spontaneous polarization, high Curie temperature, large piezoelectric response, and tailoring coercive field. However, their equivalent polarization axes as a key indicator are far from enough, although multiaxial ferroelectrics are highly preferred for performance output and application flexibility that profit from as many equivalent polarization directions as possible with easier reorientation. Here, by implementing the synergistic overlap of regulating anionic geometries (from spherical I- to octahedral [PF6]- and to tetrahedral [ClO4]- or [BF4]-) and cationic asymmetric modification, we successfully designed multiaxial MFP ferroelectrics CMDABCO-NH4-X3 (CMDABCO = N-chloromethyl-N'-diazabicyclo[2.2.2]octonium; X = [ClO4]- or [BF4]-) with the lowest P1 symmetry. More impressively, systemic characterizations indicate that they possess 24 equivalent polarization axes (Aizu notations of 432F1 and m3̅mF1, respectively)─the maximum number achievable for ferroelectrics. Benefiting from the multiaxial feature, CMDABCO-NH4-[ClO4]3 has been demonstrated to have excellent piezoelectric sensing performance in its polycrystalline sample and prepared composite device. Our study provides a feasible strategy for designing multiaxial MFP ferroelectrics and highlights their great promise for use in microelectromechanical, sensing, and body-compatible devices.
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Affiliation(s)
- Zhi-Xu Zhang
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Hao-Fei Ni
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Jing-Song Tang
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Pei-Zhi Huang
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Jia-Qi Luo
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Feng-Wen Zhang
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Jia-He Lin
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Qiang-Qiang Jia
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Gele Teri
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Chang-Feng Wang
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Da-Wei Fu
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Yi Zhang
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China
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3
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Hope MA, Mishra A, Emsley L. Hydrogen Diffusion in Hybrid Perovskites from Exchange NMR. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:7525-7532. [PMID: 39156713 PMCID: PMC11325541 DOI: 10.1021/acs.chemmater.4c01498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 08/20/2024]
Abstract
Ion migration is an important phenomenon affecting the performance of hybrid perovskite solar cells. It is particularly challenging, however, to disentangle the contribution of H+ diffusion from that of other ions, and the atomic-scale mechanism remains unclear. Here, we use 2H exchange NMR to prove that 2H+ ions exchange between MA+ cations on the time scale of seconds for both MAPbI3 and FA0.7MA0.3PbI3 perovskites. We do this by exploiting 15N-enriched MA+ to label the cations by their 15N spin state. The exchange rates and activation energy are then calculated by performing experiments as functions of mixing time and temperature. By comparing the measured exchange rates to previously measured bulk H+ diffusivities, we demonstrate that, after dissociating, H+ ions travel through the lattice before associating to another cation rather than hopping between adjacent cations.
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Affiliation(s)
- Michael A. Hope
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Aditya Mishra
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Lyndon Emsley
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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4
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Muzzillo CP, Ciobanu CV, Moore DT. High-entropy alloy screening for halide perovskites. MATERIALS HORIZONS 2024; 11:3662-3694. [PMID: 38767287 DOI: 10.1039/d4mh00464g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
As the concept of high-entropy alloying (HEA) extends beyond metals, new materials screening methods are needed. Halide perovskites (HP) are a prime case study because greater stability is needed for photovoltaics applications, and there are 322 experimentally observed HP end-members, which leads to more than 1057 potential alloys. We screen HEAHP by first calculating the configurational entropy of 106 equimolar alloys with experimentally observed end-members. To estimate enthalpy at low computational cost, we turn to the delta-lattice parameter approach, a well-known method for predicting III-V alloy miscibility. To generalize the approach for non-cubic crystals, we introduce the parameter of unit cell volume coefficient of variation (UCV), which does a good job of predicting the experimental HP miscibility data. We use plots of entropy stabilization versus UCV to screen promising alloys and identify 102 HEAHP of interest.
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Affiliation(s)
| | | | - David T Moore
- National Renewable Energy Laboratory, Golden, CO, USA.
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5
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Geuchies JJ, Klarbring J, Virgilio LD, Fu S, Qu S, Liu G, Wang H, Frost JM, Walsh A, Bonn M, Kim H. Anisotropic Electron-Phonon Interactions in 2D Lead-Halide Perovskites. NANO LETTERS 2024; 24:8642-8649. [PMID: 38976834 PMCID: PMC11261630 DOI: 10.1021/acs.nanolett.4c01905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/10/2024]
Abstract
Two-dimensional (2D) hybrid organic-inorganic metal halide perovskites offer enhanced stability for perovskite-based applications. Their crystal structure's soft and ionic nature gives rise to strong interaction between charge carriers and ionic rearrangements. Here, we investigate the interaction of photogenerated electrons and ionic polarizations in single-crystal 2D perovskite butylammonium lead iodide (BAPI), varying the inorganic lamellae thickness in the 2D single crystals. We determine the directionality of the transition dipole moments (TDMs) of the relevant phonon modes (in the 0.3-3 THz range) by the angle- and polarization-dependent THz transmission measurements. We find a clear anisotropy of the in-plane photoconductivity, with a ∼10% reduction along the axis parallel with the transition dipole moment of the most strongly coupled phonon. Detailed calculations, based on Feynman polaron theory, indicate that the anisotropy originates from directional electron-phonon interactions.
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Affiliation(s)
| | - Johan Klarbring
- Department
of Materials, Imperial College London, London SW7 2AZ, United Kingdom
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | | | - Shuai Fu
- Max
Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Sheng Qu
- Max
Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Guangyu Liu
- Department
of Physics, Imperial College London, London SW7 2AZ, United Kingdom
| | - Hai Wang
- Max
Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Jarvist M. Frost
- Department
of Physics, Imperial College London, London SW7 2AZ, United Kingdom
| | - Aron Walsh
- Department
of Materials, Imperial College London, London SW7 2AZ, United Kingdom
| | - Mischa Bonn
- Max
Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Heejae Kim
- Max
Planck Institute for Polymer Research, 55128 Mainz, Germany
- Department
of Physics, Pohang University of Science
and Technology, 37673 Pohang, Korea
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6
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Usevičius G, Turčak J, Zhang Y, Eggeling A, Einorytė Ž, Hope MA, Svirskas Š, Klose D, Kalendra V, Aidas K, Jeschke G, Banys J, Šimėnas M. Probing structural and dynamic properties of MAPbCl 3 hybrid perovskite using Mn 2+ EPR. Dalton Trans 2024; 53:7292-7302. [PMID: 38587489 PMCID: PMC11059044 DOI: 10.1039/d4dt00116h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
Hybrid methylammonium (MA) lead halide perovskites have emerged as materials exhibiting excellent photovoltaic performance related to their rich structural and dynamic properties. Here, we use multifrequency (X-, Q-, and W-band) electron paramagnetic resonance (EPR) spectroscopy of Mn2+ impurities in MAPbCl3 to probe the structural and dynamic properties of both the organic and inorganic sublattices of this compound. The temperature dependent continuous-wave (CW) EPR experiments reveal a sudden change of the Mn2+ spin Hamiltonian parameters at the phase transition to the ordered orthorhombic phase indicating its first-order character and significant slowing down of the MA cation reorientation. Pulsed EPR experiments are employed to measure the temperature dependences of the spin-lattice relaxation T1 and decoherence T2 times of the Mn2+ ions in the orthorhombic phase of MAPbCl3 revealing a coupling between the spin center and vibrations of the inorganic framework. Low-temperature electron spin echo envelope modulation (ESEEM) experiments of the protonated and deuterated MAPbCl3 analogues show the presence of quantum rotational tunneling of the ammonium groups, allowing to accurately probe their rotational energy landscape.
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Affiliation(s)
- Gediminas Usevičius
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
| | - Justinas Turčak
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
| | - Yuxuan Zhang
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Andrea Eggeling
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Žyginta Einorytė
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
| | - Michael Allan Hope
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Šarūnas Svirskas
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
| | - Daniel Klose
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Vidmantas Kalendra
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
| | - Kestutis Aidas
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
| | - Gunnar Jeschke
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Jūras Banys
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
| | - Mantas Šimėnas
- Faculty of Physics, Vilnius University, Sauletekio 3, 10257 Vilnius, Lithuania.
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7
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Trifiletti V, Massetti M, Calloni A, Luong S, Pianetti A, Milita S, Schroeder BC, Bussetti G, Binetti S, Fabiano S, Fenwick O. Bismuth-Based Perovskite Derivates with Thermal Voltage Exceeding 40 mV/K. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:5408-5417. [PMID: 38595774 PMCID: PMC11000217 DOI: 10.1021/acs.jpcc.3c06324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 04/11/2024]
Abstract
Heat is an inexhaustible source of energy, and it can be exploited by thermoelectronics to produce electrical power or electrical responses. The search for a low-cost thermoelectric material that could achieve high efficiencies and can also be straightforwardly scalable has turned significant attention to the halide perovskite family. Here, we report the thermal voltage response of bismuth-based perovskite derivates and suggest a path to increase the electrical conductivity by applying chalcogenide doping. The films were produced by drop-casting or spin coating, and sulfur was introduced in the precursor solution using bismuth triethylxanthate. The physical-chemical analysis confirms the substitution. The sulfur introduction caused resistivity reduction by 2 orders of magnitude, and the thermal voltage exceeded 40 mV K-1 near 300 K in doped and undoped bismuth-based perovskite derivates. X-ray diffraction, Raman spectroscopy, and grazing-incidence wide-angle X-ray scattering were employed to confirm the structure. X-ray photoelectron spectroscopy, elemental analysis, scanning electron microscopy, and energy-dispersive X-ray spectroscopy were employed to study the composition and morphology of the produced thin films. UV-visible absorbance, photoluminescence, inverse photoemission, and ultraviolet photoelectron spectroscopies have been used to investigate the energy band gap.
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Affiliation(s)
- Vanira Trifiletti
- Department
of Materials Science and L-NESS, University
of Milano-Bicocca, Via
Cozzi 55, I-20125 Milan, Italy
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Road, London E1 4NS, United Kingdom
| | - Matteo Massetti
- Laboratory
of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601
74, Sweden
| | - Alberto Calloni
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milano, Italy
| | - Sally Luong
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Road, London E1 4NS, United Kingdom
| | - Andrea Pianetti
- Department
of Materials Science and L-NESS, University
of Milano-Bicocca, Via
Cozzi 55, I-20125 Milan, Italy
| | - Silvia Milita
- Institute
for Microelectronics and Microsystems (CNRIMM), Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Bob C. Schroeder
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Gianlorenzo Bussetti
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milano, Italy
| | - Simona Binetti
- Department
of Materials Science and L-NESS, University
of Milano-Bicocca, Via
Cozzi 55, I-20125 Milan, Italy
| | - Simone Fabiano
- Laboratory
of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601
74, Sweden
| | - Oliver Fenwick
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Road, London E1 4NS, United Kingdom
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8
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Simenas M, Gagor A, Banys J, Maczka M. Phase Transitions and Dynamics in Mixed Three- and Low-Dimensional Lead Halide Perovskites. Chem Rev 2024; 124:2281-2326. [PMID: 38421808 PMCID: PMC10941198 DOI: 10.1021/acs.chemrev.3c00532] [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] [Revised: 12/15/2023] [Accepted: 02/09/2024] [Indexed: 03/02/2024]
Abstract
Lead halide perovskites are extensively investigated as efficient solution-processable materials for photovoltaic applications. The greatest stability and performance of these compounds are achieved by mixing different ions at all three sites of the APbX3 structure. Despite the extensive use of mixed lead halide perovskites in photovoltaic devices, a detailed and systematic understanding of the mixing-induced effects on the structural and dynamic aspects of these materials is still lacking. The goal of this review is to summarize the current state of knowledge on mixing effects on the structural phase transitions, crystal symmetry, cation and lattice dynamics, and phase diagrams of three- and low-dimensional lead halide perovskites. This review analyzes different mixing recipes and ingredients providing a comprehensive picture of mixing effects and their relation to the attractive properties of these materials.
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Affiliation(s)
- Mantas Simenas
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257 Vilnius, Lithuania
| | - Anna Gagor
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, PL-50-422 Wroclaw, Poland
| | - Juras Banys
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257 Vilnius, Lithuania
| | - Miroslaw Maczka
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, PL-50-422 Wroclaw, Poland
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9
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Drużbicki K, Gila-Herranz P, Marin-Villa P, Gaboardi M, Armstrong J, Fernandez-Alonso F. Cation Dynamics as Structure Explorer in Hybrid Perovskites-The Case of MAPbI 3. CRYSTAL GROWTH & DESIGN 2024; 24:391-404. [PMID: 38188269 PMCID: PMC10768891 DOI: 10.1021/acs.cgd.3c01112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/20/2023] [Accepted: 12/01/2023] [Indexed: 01/09/2024]
Abstract
Hybrid organic-inorganic perovskites exhibit remarkable potential as cost-effective and high-efficiency materials for photovoltaic applications. Their exceptional chemical tunability opens further routes for optimizing their optical and electronic properties through structural engineering. Nevertheless, the extraordinary softness of the lattice, stemming from its interconnected organic-inorganic composition, unveils formidable challenges in structural characterization. Here, by focusing on the quintessential methylammonium lead triiodide, MAPbI3, we combine first-principles modeling with high-resolution neutron scattering data to identify the key stationary points on its shallow potential energy landscape. This combined experimental and computational approach enables us to benchmark the performance of a collection of semilocal exchange-correlation functionals and to track the local distortions of the perovskite framework, hallmarked by the inelastic neutron scattering response of the organic cation. By conducting a thorough examination of structural distortions, we introduce the IKUR-PVP-1 structural data set. This data set contains nine mechanically stable structural models, each manifesting a distinct vibrational response. IKUR-PVP-1 constitutes a valuable resource for assessing thermal behavior in the low-temperature perovskite phase. In addition, it paves the way for the development of accurate force fields, enabling a comprehensive understanding of the interplay between the structure and dynamics in MAPbI3 and related hybrid perovskites.
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Affiliation(s)
- Kacper Drużbicki
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, Donostia-San Sebastian 20018, Spain
- Polish
Academy of Sciences, Centre of Molecular and Macromolecular Studies, Sienkiewicza 112, Lodz 90-363, Poland
| | - Pablo Gila-Herranz
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, Donostia-San Sebastian 20018, Spain
| | - Pelayo Marin-Villa
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, Donostia-San Sebastian 20018, Spain
| | - Mattia Gaboardi
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, Donostia-San Sebastian 20018, Spain
- C.S.G.I.
& Chemistry Department, University of
Pavia, Viale Taramelli,
16, Pavia 27100, Italy
| | - Jeff Armstrong
- ISIS
Neutron and Muon Facility, Rutherford Appleton
Laboratory, Didcot OX11 0QX, U.K.
| | - Felix Fernandez-Alonso
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, Donostia-San Sebastian 20018, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, Donostia-San
Sebastian 20018, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
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10
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Zhong Y, Yang J, Wang X, Liu Y, Cai Q, Tan L, Chen Y. Inhibition of Ion Migration for Highly Efficient and Stable Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302552. [PMID: 37067957 DOI: 10.1002/adma.202302552] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/13/2023] [Indexed: 06/19/2023]
Abstract
In recent years, organic-inorganic halide perovskites are now emerging as the most attractive alternatives for next-generation photovoltaic devices, due to their excellent optoelectronic characteristics and low manufacturing cost. However, the resultant perovskite solar cells (PVSCs) are intrinsically unstable owing to ion migration, which severely impedes performance enhancement, even with device encapsulation. There is no doubt that the investigation of ion migration and the summarization of recent advances in inhibition strategies are necessary to develop "state-of-the-art" PVSCs with high intrinsic stability for accelerated commercialization. This review systematically elaborates on the generation and fundamental mechanisms of ion migration in PVSCs, the impact of ion migration on hysteresis, phase segregation, and operational stability, and the characterizations for ion migration in PVSCs. Then, many related works on the strategies for inhibiting ion migration toward highly efficient and stable PVSCs are summarized. Finally, the perspectives on the current obstacles and prospective strategies for inhibition of ion migration in PVSCs to boost operational stability and meet all of the requirements for commercialization success are summarized.
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Affiliation(s)
- Yang Zhong
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Jia Yang
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Xueying Wang
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Yikun Liu
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Qianqian Cai
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Licheng Tan
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, 226010, China
| | - Yiwang Chen
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- National Engineering Research Center for Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, China
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, 226010, China
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11
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Jiang F, Wu Z, Lu M, Gao Y, Li X, Bai X, Ji Y, Zhang Y. Broadband Emission Origin in Metal Halide Perovskites: Are Self-Trapped Excitons or Ions? ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211088. [PMID: 36988940 DOI: 10.1002/adma.202211088] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/20/2023] [Indexed: 06/19/2023]
Abstract
It has always been a goal to realize high efficiency and broadband emission in single-component materials. The appearance of metal halide perovskites makes it possible. Their soft lattice characteristics and significant electron-phonon coupling synergistically generate self-trapped excitons (STEs), contributing to a broadband emission with a large Stokes shift. Meanwhile, their structural/compositional diversity provides suitable active sites and coordination environments for doping of ns2 ions, allowing 3 Pn ( n =0,1,2) →1 S0 transitions toward broadband emission. The ns2 ions emission is phenomenologically similar to that of STE emission, hindering in-depth understanding of their emission origin, and leading to failure to meet the design requirements for practical applications. In this scenario, herein, the fundamentals and development of such two emission mechanisms are summarized to establish a clear and comprehensive understanding of the broadband emission phenomenon, which may pave the way to an ideal customization of broadband-emission metal halide perovskites.
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Affiliation(s)
- Feng Jiang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- College of Physics, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Zhennan Wu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Min Lu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yanbo Gao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xin Li
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xue Bai
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yuan Ji
- College of Physics, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yu Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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12
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Mączka M, Ptak M, Gągor A, Zaręba JK, Liang X, Balčiu̅nas S, Semenikhin OA, Kucheriv OI, Gural’skiy IA, Shova S, Walsh A, Banys J, Šimėnas M. Phase Transitions, Dielectric Response, and Nonlinear Optical Properties of Aziridinium Lead Halide Perovskites. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:9725-9738. [PMID: 38047186 PMCID: PMC10687860 DOI: 10.1021/acs.chemmater.3c02200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 12/05/2023]
Abstract
Hybrid organic-inorganic lead halide perovskites are promising candidates for next-generation solar cells, light-emitting diodes, photodetectors, and lasers. The structural, dynamic, and phase-transition properties play a key role in the performance of these materials. In this work, we use a multitechnique experimental (thermal, X-ray diffraction, Raman scattering, dielectric, nonlinear optical) and theoretical (machine-learning force field) approach to map the phase diagrams and obtain information on molecular dynamics and mechanism of the structural phase transitions in novel 3D AZRPbX3 perovskites (AZR = aziridinium; X = Cl, Br, I). Our work reveals that all perovskites undergo order-disorder phase transitions at low temperatures, which significantly affect the structural, dielectric, phonon, and nonlinear optical properties of these compounds. The desirable cubic phases of AZRPbX3 remain stable at lower temperatures (132, 145, and 162 K for I, Br, and Cl) compared to the methylammonium and formamidinium analogues. Similar to other 3D-connected hybrid perovskites, the dielectric response reveals a rather high dielectric permittivity, an important feature for defect tolerance. We further show that AZRPbBr3 and AZRPbI3 exhibit strong nonlinear optical absorption. The high two-photon brightness of AZRPbI3 emission stands out among lead perovskites emitting in the near-infrared region.
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Affiliation(s)
- Mirosław Mączka
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland
| | - Maciej Ptak
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland
| | - Anna Gągor
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland
| | - Jan K. Zaręba
- Institute
of Advanced Materials, Faculty of Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland
| | - Xia Liang
- Department
of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | | | - Oleksandr A. Semenikhin
- Department
of Chemistry, Taras Shevchenko National
University of Kyiv, 64 Volodymyrska St., Kyiv 01601, Ukraine
| | - Olesia I. Kucheriv
- Department
of Chemistry, Taras Shevchenko National
University of Kyiv, 64 Volodymyrska St., Kyiv 01601, Ukraine
| | - Il’ya A. Gural’skiy
- Department
of Chemistry, Taras Shevchenko National
University of Kyiv, 64 Volodymyrska St., Kyiv 01601, Ukraine
| | - Sergiu Shova
- Department
of Inorganic Polymers, Petru Poni Institute
of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41-A, Iasi 700487, Romania
| | - Aron Walsh
- Department
of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
- Department
of Physics, Ewha Womans University, Seoul 03760, Korea
| | - Ju̅ras Banys
- Faculty
of Physics, Vilnius University, LT-10257 Vilnius, Lithuania
| | - Mantas Šimėnas
- Faculty
of Physics, Vilnius University, LT-10257 Vilnius, Lithuania
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13
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Wang C, Rong Y, Wang T. Inorganic A-site cations improve the performance of band-edge carriers in lead halide perovskites. FRONTIERS OF OPTOELECTRONICS 2023; 16:25. [PMID: 37747592 PMCID: PMC10519920 DOI: 10.1007/s12200-023-00078-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/17/2023] [Indexed: 09/26/2023]
Abstract
In lead halide perovskites, organic A-site cations are generally introduced to fine-tune the properties. One of the questions under debate is whether organic A-site cations are essential for high-performance solar cells. In this study, we compare the band edge carrier dynamics and diffusion process in MAPbBr3 and CsPbBr3 single-crystal microplates. By transient absorption microscopy, the band-edge carrier diffusion constants are unraveled. With the replacement of inorganic A-site cations, the diffusion constant in CsPbBr3 increases almost 8 times compared to that in MAPbBr3. This work reveals that introducing inorganic A-site cations can lead to a much larger diffusion length and improve the performance of band-edge carriers.
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Affiliation(s)
- Cheng Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - Yaoguang Rong
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Ti Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
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14
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Vats G, Hodges B, Ferguson AJ, Wheeler LM, Blackburn JL. Optical Memory, Switching, and Neuromorphic Functionality in Metal Halide Perovskite Materials and Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2205459. [PMID: 36120918 DOI: 10.1002/adma.202205459] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Metal halide perovskite based materials have emerged over the past few decades as remarkable solution-processable optoelectronic materials with many intriguing properties and potential applications. These emerging materials have recently been considered for their promise in low-energy memory and information processing applications. In particular, their large optical cross-sections, high photoconductance contrast, large carrier-diffusion lengths, and mixed electronic/ionic transport mechanisms are attractive for enabling memory elements and neuromorphic devices that are written and/or read in the optical domain. Here, recent progress toward memory and neuromorphic functionality in metal halide perovskite materials and devices where photons are used as a critical degree of freedom for switching, memory, and neuromorphic functionality is reviewed.
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Affiliation(s)
- Gaurav Vats
- National Renewable Energy Laboratory, Golden, CO, 80401, USA
- Department of Physics and Astronomy, Katholieke Universiteit Leuven, Celestijnenlaan 200D, Leuven, B-3001, Belgium
| | - Brett Hodges
- National Renewable Energy Laboratory, Golden, CO, 80401, USA
| | | | - Lance M Wheeler
- National Renewable Energy Laboratory, Golden, CO, 80401, USA
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15
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Xu K, Pérez-Fidalgo L, Charles BL, Weller MT, Alonso MI, Goñi AR. Using pressure to unravel the structure-dynamic-disorder relationship in metal halide perovskites. Sci Rep 2023; 13:9300. [PMID: 37291135 PMCID: PMC10250390 DOI: 10.1038/s41598-023-36501-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023] Open
Abstract
The exceptional optoelectronic properties of metal halide perovskites (MHPs) are presumed to arise, at least in part, from the peculiar interplay between the inorganic metal-halide sublattice and the atomic or molecular cations enclosed in the cage voids. The latter can exhibit a roto-translative dynamics, which is shown here to be at the origin of the structural behavior of MHPs as a function of temperature, pressure and composition. The application of high hydrostatic pressure allows for unraveling the nature of the interaction between both sublattices, characterized by the simultaneous action of hydrogen bonding and steric hindrance. In particular, we find that under the conditions of unleashed cation dynamics, the key factor that determines the structural stability of MHPs is the repulsive steric interaction rather than hydrogen bonding. Taking as example the results from pressure and temperature-dependent photoluminescence and Raman experiments on MAPbBr[Formula: see text] but also considering the pertinent MHP literature, we provide a general picture about the relationship between the crystal structure and the presence or absence of cationic dynamic disorder. The reason for the structural sequences observed in MHPs with increasing temperature, pressure, A-site cation size or decreasing halide ionic radius is found principally in the strengthening of the dynamic steric interaction with the increase of the dynamic disorder. In this way, we have deepened our fundamental understanding of MHPs; knowledge that could be coined to improve performance in future optoelectronic devices based on this promising class of semiconductors.
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Affiliation(s)
- Kai Xu
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Luis Pérez-Fidalgo
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Bethan L Charles
- Department of Chemistry and Centre for Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath, BA2 7AY, UK
- Department of Mechanical Engineering, Queens Building, University of Bristol, Bristol, BS8 1TR, UK
| | - Mark T Weller
- Department of Chemistry and Centre for Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath, BA2 7AY, UK
- Department of Chemistry, Cardiff University, Wales, CF10 3AT, UK
| | - M Isabel Alonso
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Alejandro R Goñi
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain.
- ICREA, Passeig Lluís Companys 23, 08010, Barcelona, Spain.
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16
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Real-time observation of the buildup of polaron in α-FAPbI 3. Nat Commun 2023; 14:917. [PMID: 36801865 PMCID: PMC9938110 DOI: 10.1038/s41467-023-36652-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
The formation of polaron, i.e., the strong coupling process between the carrier and lattice, is considered to play a crucial role in benefiting the photoelectric performance of hybrid organic-inorganic halide perovskites. However, direct observation of the dynamical formation of polarons occurring at time scales within hundreds of femtoseconds remains a technical challenge. Here, by terahertz emission spectroscopy, we demonstrate the real-time observation of polaron formation process in FAPbI3 films. Two different polaron resonances interpreted with the anharmonic coupling emission model have been studied: P1 at ~1 THz relates to the inorganic sublattice vibration mode and the P2 at ~0.4 THz peak relates to the FA+ cation rotation mode. Moreover, P2 could be further strengthened than P1 by pumping the hot carriers to the higher sub-conduction band. Our observations could open a door for THz emission spectroscopy to be a powerful tool in studying polaron formation dynamics in perovskites.
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17
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Loi HL, Cao J, Liu CK, Xu Y, Li MG, Yan F. Highly Sensitive Broadband Phototransistors Based on Gradient Tin/Lead Mixed Perovskites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205976. [PMID: 36408813 DOI: 10.1002/smll.202205976] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Highly sensitive broadband photodetectors are critical to numerous cutting-edge technologies such as biomedical imaging, environment monitoring, and night vision. Here, phototransistors based on mixed Sn/Pb perovskites are reported, which demonstrate ultrahigh responsivity, gain and specific detectivity in a broadband from ultraviolet to near-infrared region. The interface properties of the perovskite phototransistors are optimized by a special three-step cleaning-healing-cleaning treatment, leading to a high hole mobility in the channel. The highly sensitive performance of the mixed Sn/Pb perovskite phototransistors can be attributed to the vertical compositional heterojunction automatically formed during the film deposition, which is helpful for the separation of photocarriers thereby enhancing a photogating effect in the perovskite channel. This work demonstrates a convenient approach to achieving high-performance phototransistors through tuning compositional gradient in mixed-metal perovskite channels.
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Affiliation(s)
- Hok-Leung Loi
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Jiupeng Cao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Chun-Ki Liu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Yang Xu
- Division of Integrative Systems and Design, Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, P. R. China
| | - Mitch Guijun Li
- Division of Integrative Systems and Design, Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, P. R. China
| | - Feng Yan
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
- Research Institute of Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China
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18
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Šimėnas M, Balčiu̅nas S, Ga̧gor A, Pienia̧żek A, Tolborg K, Kinka M, Klimavicius V, Svirskas Š, Kalendra V, Ptak M, Szewczyk D, Herman AP, Kudrawiec R, Sieradzki A, Grigalaitis R, Walsh A, Ma̧czka M, Banys J. Mixology of MA 1-x EA x PbI 3 Hybrid Perovskites: Phase Transitions, Cation Dynamics, and Photoluminescence. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:10104-10112. [PMID: 36439319 PMCID: PMC9686138 DOI: 10.1021/acs.chemmater.2c02807] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Mixing molecular cations in hybrid lead halide perovskites is a highly effective approach to enhance the stability and performance of optoelectronic devices based on these compounds. In this work, we prepare and study novel mixed 3D methylammonium (MA)-ethylammonium (EA) MA1-x EA x PbI3 (x < 0.4) hybrid perovskites. We use a suite of different techniques to determine the structural phase diagram, cation dynamics, and photoluminescence properties of these compounds. Upon introduction of EA, we observe a gradual lowering of the phase-transition temperatures, indicating stabilization of the cubic phase. For mixing levels higher than 30%, we obtain a complete suppression of the low-temperature phase transition and formation of a new tetragonal phase with a different symmetry. We use broad-band dielectric spectroscopy to study the dielectric response of the mixed compounds in an extensive frequency range, which allows us to distinguish and characterize three distinct dipolar relaxation processes related to the molecular cation dynamics. We observe that mixing increases the rotation barrier of the MA cations and tunes the dielectric permittivity values. For the highest mixing levels, we observe the signatures of the dipolar glass phase formation. Our findings are supported by density functional theory calculations. Our photoluminescence measurements reveal a small change of the band gap upon mixing, indicating the suitability of these compounds for optoelectronic applications.
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Affiliation(s)
- Mantas Šimėnas
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
| | - Sergejus Balčiu̅nas
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
| | - Anna Ga̧gor
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, PL-50-422Wroclaw, Poland
| | - Agnieszka Pienia̧żek
- Department
of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, PL-50-370Wroclaw, Poland
| | - Kasper Tolborg
- Thomas
Young Centre and Department of Materials, Imperial College London, SW7 2AZLondon, U.K.
| | - Martynas Kinka
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
| | - Vytautas Klimavicius
- Institute
of Chemical Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
| | - Šaru̅nas Svirskas
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
| | - Vidmantas Kalendra
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
| | - Maciej Ptak
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, PL-50-422Wroclaw, Poland
| | - Daria Szewczyk
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, PL-50-422Wroclaw, Poland
| | - Artur P. Herman
- Department
of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, PL-50-370Wroclaw, Poland
| | - Robert Kudrawiec
- Department
of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, PL-50-370Wroclaw, Poland
| | - Adam Sieradzki
- Department
of Experimental Physics, Wroclaw University
of Science and Technology, Wybrzeze Wyspianskiego 27, PL-50-370Wroclaw, Poland
| | - Robertas Grigalaitis
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
| | - Aron Walsh
- Thomas
Young Centre and Department of Materials, Imperial College London, SW7 2AZLondon, U.K.
| | - Mirosław Ma̧czka
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, PL-50-422Wroclaw, Poland
| | - Ju̅ras Banys
- Faculty
of Physics, Vilnius University, Sauletekio 3, LT-10257Vilnius, Lithuania
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19
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The Effect of Short Chain Carboxylic Acids as Additives on the Crystallization of Methylammonium Lead Triiodide (MAPI). INORGANICS 2022. [DOI: 10.3390/inorganics10110201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Due to their exceptional properties, the study of hybrid perovskite (HyP) structures and applications dominate current photovoltaic prospects. Methylammonium lead tri-iodide perovskite (MAPI) is the model compound of the HyP class of materials that, in a few years, achieved, in photovoltaics, a power conversion efficiency of 25%. The attention on HyP has recently moved to large single crystals as emerging candidates for photovoltaic application because of their improved stability and optoelectronic properties compared to polycrystalline films. To control the quality and symmetry of the large MAPI single crystals, we proposed an original method that consisted of adding short-chain carboxylic acids to the inverse temperature crystallization (ICT) of MAPI in γ-butyrolactone (GBL). The crystals were characterized by single-crystal X-ray diffraction (SC-XRD), X-ray powder diffraction (XRPD) and Raman spectroscopy. Based on SC-XRD analysis, MAPI crystals grown using acetic and trifluoroacetic acids adopt a tetragonal symmetry “I4cm”. MAPI grown in the presence of formic acid turned out to crystallize in the orthorhombic “Fmmm” space group demonstrating the acid’s effect on the crystallization of MAPI.
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20
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Cuthriell SA, Panuganti S, Laing CC, Quintero MA, Guzelturk B, Yazdani N, Traore B, Brumberg A, Malliakas CD, Lindenberg AM, Wood V, Katan C, Even J, Zhang X, Kanatzidis MG, Schaller RD. Nonequilibrium Lattice Dynamics in Photoexcited 2D Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202709. [PMID: 36062547 DOI: 10.1002/adma.202202709] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Interplay between structural and photophysical properties of metal halide perovskites is critical to their utility in optoelectronics, but there is limited understanding of lattice response upon photoexcitation. Here, 2D perovskites butylammonium lead iodide, (BA)2 PbI4 , and phenethylammonium lead iodide, (PEA)2 PbI4 , are investigated using ultrafast transient X-ray diffraction as a function of optical excitation fluence to discern structural dynamics. Both powder X-ray diffraction and time-resolved photoluminescence linewidths narrow over 1 ns following optical excitation for the fluence range studied, concurrent with slight redshifting of the optical bandgaps. These observations are attributed to transient relaxation and ordering of distorted lead iodide octahedra stimulated mainly by electron-hole pair creation. The c axis expands up to 0.37% over hundreds of picoseconds; reflections sampling the a and b axes undergo one tenth of this expansion with the same timescale. Post-photoexcitation appearance of the (110) reflection in (BA)2 PbI4 would suggest a transient phase transition, however, through new single-crystal XRD, reflections are found that violate glide plane conditions in the reported Pbca structure. The static structure space group is reassigned as P21 21 21 . With this, a nonequilibrium phase transition is ruled out. These findings offer increased understanding of remarkable lattice response in 2D perovskites upon excitation.
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Affiliation(s)
- Shelby A Cuthriell
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
| | - Shobhana Panuganti
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
| | - Craig C Laing
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
| | - Michael A Quintero
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
| | - Burak Guzelturk
- X-Ray Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Nuri Yazdani
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
- Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich, 8092, Switzerland
| | - Boubacar Traore
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, Rennes, F-35000, France
| | - Alexandra Brumberg
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
| | - Christos D Malliakas
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
| | - Aaron M Lindenberg
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Vanessa Wood
- Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich, 8092, Switzerland
| | - Claudine Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, Rennes, F-35000, France
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, Rennes, F-35000, France
| | - Xiaoyi Zhang
- X-Ray Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
| | - Richard D Schaller
- Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, IL, 60208, USA
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL, 60439, USA
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21
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Marín-Villa P, Arauzo A, Drużbicki K, Fernandez-Alonso F. Unraveling the Ordered Phase of the Quintessential Hybrid Perovskite MAPbI 3─Thermophysics to the Rescue. J Phys Chem Lett 2022; 13:8422-8428. [PMID: 36069450 PMCID: PMC9486940 DOI: 10.1021/acs.jpclett.2c02208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
Hybrid perovskites continue to attract an enormous amount of attention, yet a robust microscopic picture of their different phases as well as the extent and nature of the disorder present remains elusive. Using specific-heat data along with high-resolution inelastic neutron scattering and ab initio modeling, we address this ongoing challenge for the case of the ordered phase of the quintessential hybrid-perovskite MAPbI3. At low temperatures, the specific heat of MAPbI3 reveals strong deviations from the Debye limit, a common feature of pure hybrid perovskites and their mixtures. Our thermophysical analysis demonstrates that the (otherwise ordered) structure around the organic moiety is characterized by a substantial lowering of the local symmetry relative to what can be inferred from crystallographic studies. The physical origin of the observed thermophysical anomalies is unequivocally linked to excitations of sub-terahertz optical phonons responsible for translational-librational distortions of the octahedral units.
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Affiliation(s)
- Pelayo Marín-Villa
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia - San Sebastian, Spain
| | - Ana Arauzo
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Kacper Drużbicki
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia - San Sebastian, Spain
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Felix Fernandez-Alonso
- Materials
Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia - San Sebastian, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia - San Sebastian, Spain
- IKERBASQUE
- Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
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22
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Chan TH, Taylor NT, Sundaram S, Hepplestone SP. Phase Stability and Electronic Properties of Hybrid Organic-Inorganic Perovskite Solid Solution (CH(NH 2) 2) x (CH 3NH 3) 1-x Pb(Br y I 1-y ) 3 as a Function of Composition. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:13640-13648. [PMID: 36017360 PMCID: PMC9393887 DOI: 10.1021/acs.jpcc.2c03555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/10/2022] [Indexed: 06/15/2023]
Abstract
Compositional mixing provides the means to maintain the structural stability of a hybrid organic-inorganic perovskite for efficient and robust photovoltaic applications. Here we present a theoretical, first-principles study of the electronic and energetic properties of the solid solution (CH(NH2)2) x (CH3NH3)1-x PbBr y I1-y , the mixing of two organic molecules with various orientations, formamidinium and methylammonium, and two halides, bromide and iodide. Our results show the variation in the band gap as a function of composition (x and y) provides several candidates that exceed the 27.5% Schockley-Queisser efficiency. The variation in the composition of hybrid perovskite shows specific regions where either the hexagonal or cubic phase dominates. We discuss the balance between the band gap and phase stability and indicate regions where the phase transition temperature between cubic and hexagonal phases is far from room temperature, indicating that these compositions are more robust at room temperature against phase transitions.
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Affiliation(s)
- T. H. Chan
- Department
of Physics and Astronomy, College of Engineering, Mathematics and
Physical Sciences, Streatham Campus, University
of Exeter, Exeter EX4 4QL, U.K.
| | - N. T. Taylor
- Department
of Physics and Astronomy, College of Engineering, Mathematics and
Physical Sciences, Streatham Campus, University
of Exeter, Exeter EX4 4QL, U.K.
| | - S. Sundaram
- The
School of Engineering and the Built Environment, Merchiston Campus, Edinburgh Napier University, Edinburgh EH10 5DT, U.K.
| | - S. P. Hepplestone
- Department
of Physics and Astronomy, College of Engineering, Mathematics and
Physical Sciences, Streatham Campus, University
of Exeter, Exeter EX4 4QL, U.K.
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23
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Gehrmann C, Caicedo‐Dávila S, Zhu X, Egger DA. Transversal Halide Motion Intensifies Band-To-Band Transitions in Halide Perovskites. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200706. [PMID: 35373927 PMCID: PMC9165501 DOI: 10.1002/advs.202200706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Indexed: 05/29/2023]
Abstract
Despite their puzzling vibrational characteristics that include strong signatures of anharmonicity and thermal disorder already around room temperature, halide perovskites (HaPs) exhibit favorable optoelectronic properties for applications in photovoltaics and beyond. Whether these vibrational properties are advantageous or detrimental to their optoelectronic properties remains, however, an important open question. Here, this issue is addressed by investigation of the finite-temperature optoelectronic properties in the prototypical cubic CsPbBr3 , using first-principles molecular dynamics based on density-functional theory. It is shown that the dynamic flexibility associated with HaPs enables the so-called transversality, which manifests as a preference for large halide displacements perpendicular to the Pb-Br-Pb bonding axis. The authors find that transversality is concurrent with vibrational anharmonicity and leads to a rapid rise in the joint density of states, which is favorable for photovoltaics since this implies sharp optical absorption profiles. These findings are contrasted to the case of PbTe, a material that shares several key properties with CsPbBr3 but cannot exhibit any transversality and, hence, is found to exhibit much wider band-edge distributions. The authors conclude that the dynamic structural flexibility in HaPs and their unusual vibrational characteristics might not just be a mere coincidence, but play active roles in establishing their favorable optoelectronic properties.
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Affiliation(s)
- Christian Gehrmann
- Department of PhysicsTechnical University of MunichJames‐Franck‐Straße 1Garching85748Germany
| | | | - Xiangzhou Zhu
- Department of PhysicsTechnical University of MunichJames‐Franck‐Straße 1Garching85748Germany
| | - David A. Egger
- Department of PhysicsTechnical University of MunichJames‐Franck‐Straße 1Garching85748Germany
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24
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Zhang Y, Zhu Y, Hu M, Pai N, Qin T, Cheng YB, Bach U, Simonov AN, Lu J. Self-Enhancement of Efficiency and Self-Attenuation of Hysteretic Behavior of Perovskite Solar Cells with Aging. J Phys Chem Lett 2022; 13:2792-2799. [PMID: 35319208 DOI: 10.1021/acs.jpclett.2c00278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Spontaneous enhancement of the photovoltaic performance of perovskite solar cells (PSCs) after aging has been reported, but the underlying reasons for such behavior are still under debate. Herein, we demonstrate that this spontaneous improvement effect accompanied by self-attenuation of hysteresis in the current-voltage characteristics is time- and temperature-dependent. Moreover, it is universal to PSCs based on a range of mixed-ion perovskites and coupled to different hole- and electron-transporting materials. Time-resolved confocal fluorescence microscopy and other characterization techniques suggest that the "self-healing" phenomenon is accompanied by the homogenization and enhancement of the charge extraction efficiency as well as suppressed recombination throughout cm2-scale perovskite layers. These dynamic effects need to be accounted for when assessing the initial and stabilized performance of PSCs.
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Affiliation(s)
- Yuxi Zhang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 430070 Wuhan, P.R. China
| | - Yanqing Zhu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 430070 Wuhan, P.R. China
| | - Min Hu
- School of Electronic and Electrical Engineering, Hubei Province Engineering Research Center for Intelligent Micro-Nano Medical Equipment and Key Technologies, Wuhan Textile University, Wuhan 430200, P.R. China
| | - Narendra Pai
- Department of Chemical Engineering, ARC Centre of Excellence for Exciton Science, Monash University, Melbourne, Victoria 3800, Australia
| | - Tianshi Qin
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
| | - Yi-Bing Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P.R. China
| | - Udo Bach
- Department of Chemical Engineering, ARC Centre of Excellence for Exciton Science, Monash University, Melbourne, Victoria 3800, Australia
| | - Alexandr N Simonov
- School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia
| | - Jianfeng Lu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 430070 Wuhan, P.R. China
- Department of Chemical Engineering, ARC Centre of Excellence for Exciton Science, Monash University, Melbourne, Victoria 3800, Australia
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25
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Kabra D. Origin of Contrasting Emission Spectrum of Bromide versus Iodide Layered Perovskite Semiconductors. J Phys Chem Lett 2022; 13:2737-2743. [PMID: 35312333 DOI: 10.1021/acs.jpclett.2c00362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The origin of broadband emission is studied using temperature-dependent time-resolved photoluminescence (PL) spectra for two-dimensional (2D) layered halide perovskites (i.e., (PEA)2PbBr4 = phenylethylammonium lead bromide and (PEA)2PbI4 = phenylethylammonium lead iodide) semiconductors. Both perovskite systems show only a single peak exciton emission at room temperature, which becomes multipeak exciton emissions at low temperatures. For temperatures below 100 K, the (PEA)2PbBr4 film gives broad PL emission, Stokes shifted by 750 meV from narrow exciton emission peaks, whereas the (PEA)2PbI4 film does not show any broad emission. Kinetics of various peaks could provide useful insight to propose a consistent energy level scheme associated with a barrier (PEA) and well (PbX64-) material system's electronic states. This broad emission in (PEA)2PbBr4 perovskite is observed due to coupling of triplet states in the inorganic well (PbBr64-) and organic barrier (PEA) layer, which is in contrast to a proposed model based on self-trapped exciton.
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Affiliation(s)
- Dinesh Kabra
- Department of Physics, Indian Institute of Technology, Bombay, Mumbai 400076, India
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26
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Li X, Kepenekian M, Li L, Dong H, Stoumpos CC, Seshadri R, Katan C, Guo P, Even J, Kanatzidis MG. Tolerance Factor for Stabilizing 3D Hybrid Halide Perovskitoids Using Linear Diammonium Cations. J Am Chem Soc 2022; 144:3902-3912. [PMID: 35213137 DOI: 10.1021/jacs.1c11803] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Three-dimensional (3D) halide perovskites have attracted enormous research interest, but the choice of the A-site cations is limited by the Goldschmidt tolerance factor. In order to accommodate cations that lie outside the acceptable range of the tolerance factor, low-dimensional structures usually form. To maintain the favorable 3D connection, the links among the metal-halide octahedra need to be rearranged to fit the large cations. This can result in a departure from the proper corner-sharing perovskite architectures and lead to distinctly different perovskitoid motifs with edge- and face-sharing. In this work, we report four new 3D bromide perovskitoids incorporating linear organic diammonium cations, A'Pb2Br6 (A' is a +2 cation). We propose a rule that can guide the further expansion of this class of compounds, analogous to the notion of Goldschmidt tolerance factor widely adopted for 3D AMX3 perovskites. The fundamental building blocks in A'Pb2Br6 consist of two edge-shared octahedra, which are then connected by corner-sharing to form a 3D network. Different compounds adopt different structural motifs, which can be transformed from one to another by symmetry operations. Electronic structure calculations suggest that they are direct bandgap semiconductors, with relatively large band dispersions created by octahedra connected by corner-sharing. They exhibit similar electronic band structures and dynamic lattice characteristics to the regular 3D AMX3 perovskites. Structures with smaller Pb-Br-Pb angles and larger octahedra distortion exhibit broad photoluminescence at room temperature. The emerging structure-property relationships in these 3D perovskitoids set the foundation for designing and investigating these compounds for a variety of optoelectronic applications.
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Affiliation(s)
- Xiaotong Li
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Mikaël Kepenekian
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, Rennes F-35000, France
| | - Linda Li
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Hao Dong
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Constantinos C Stoumpos
- Department of Materials Science and Technology, University of Crete, Voutes Campus, Heraklion GR-70013, Greece
| | - Ram Seshadri
- Materials Department and Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Claudine Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, Rennes F-35000, France
| | - Peijun Guo
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, Rennes F-35000, France
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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27
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Taukeer Khan M, Khan F, Al-Ahmed A, Ahmad S, Al-Sulaiman F. Evaluating the Capacitive Response in Metal Halide Perovskite Solar Cells. CHEM REC 2022; 22:e202100330. [PMID: 35199444 DOI: 10.1002/tcr.202100330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/26/2022] [Accepted: 02/03/2022] [Indexed: 11/11/2022]
Abstract
The perovskites solar cells (PSCs) is composed of multifaceted device architecture and involve complex charge extraction (both electronic and ionic), this makes the task demanding to unlock the origin of the different physical process that occurs in a PSC. The capacitance in PSCs depends on several external perturbations including frequency, illumination, temperature, applied bias, and importantly on the interface modification of perovskites/charge selective contact. Arguably, different features including interfacial and bulk; ionic, and electronic charge transport in PSCs occur at different time scales. Capacitance spectroscopy is a prevailing technique to unravel the various physical phenomenon that occurs in a PSC at different time scales. A deeper knowledge of the capacitive response of a PSCs is essential to understand the charge carrier kinetics and unlock the device physics. This work highlights the capacitive response of PSCs and its application to unlock the device physics which is essential for the further optimization and improvement of the device performance.
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Affiliation(s)
- Mohd Taukeer Khan
- Department of Physics, Faculty of Science, Islamic University of Madinah, Al Jamiah, Madinah, 42351, Saudi Arabia
| | - Firoz Khan
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), Research Institute, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Amir Al-Ahmed
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), Research Institute, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Shahzada Ahmad
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, Bld. Martina Casiano, UPV/EHU Science Park, Barrio Sarriena s/n, 48940, Leioa, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Fahad Al-Sulaiman
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), Research Institute, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
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28
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Liu J, Du J, Phillips AE, Wyatt PB, Keen DA, Dove MT. Neutron powder diffraction study of the phase transitions in deuterated methylammonium lead iodide. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:145401. [PMID: 35021159 DOI: 10.1088/1361-648x/ac4aa9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
We report the results of a neutron powder diffraction study of the phase transitions in deuterated methylammonium lead iodide, with a focus on the system of orientational distortions of the framework of PbI6octahedra. The results are analysed in terms of symmetry-adapted lattice strains and normal mode distortions. The higher-temperature cubic-tetragonal phase transition at 327 K is weakly discontinuous and nearly tricritical. The variations of rotation angles and spontaneous strains with temperature are consistent with a standard Landau theory treatment. The lower-temperature transition to the orthorhombic phase at 165 K is discontinuous, with two systems of octahedral rotations and internal distortions that together can be described by 5 order parameters of different symmetry. In this paper we quantify the various symmetry-breaking distortions and their variation with temperature, together with their relationship to the spontaneous strains, within the formalism of Landau theory. A number of curious results in the low-temperature phase are identified, particularly regarding distortion amplitudes that decrease rather than increase with lowering temperature.
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Affiliation(s)
- Jiaxun Liu
- School of Physical and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
| | - Juan Du
- School of Physical and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
| | - Anthony E Phillips
- School of Physical and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
| | - Peter B Wyatt
- School of Physical and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
| | - David A Keen
- ISIS Facility, Rutherford Appleton Laboratory, Harwell Campus, Didcot, Oxfordshire, OX11 0QX, United Kingdom
| | - Martin T Dove
- School of Physical and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
- School of Computer Sciences, Sichuan University, No 24 South Section 1, Yihuan Road, Chengdu, 610065, People's Republic of China
- Department of Physics, School of Sciences, Wuhan University of Technology, 205 Luoshi Road, Hongshan District, Wuhan, Hubei, 430070, People's Republic of China
- School of Mechanical Engineering, Dongguan University of Technology, 1st Daxue Road, Songshan Lake, Dongguan, Guangdong 523000, People's Republic of China
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29
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Kagdada HL, Gupta SK, Sahoo S, Singh DK. Mobility Driven Thermoelectric and Optical Properties of Two-Dimensional Halide-based Hybrid Perovskites: Impact of Organic Cation Rotation. Phys Chem Chem Phys 2022; 24:8867-8880. [DOI: 10.1039/d1cp05724c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pivotal impact of organic cation rotation may render structural complexity in two-dimensional (2D) halide-based hybrid perovskites. The crucial role of the orientation of organic cation (MA = CH3NH3+) in...
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30
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Ptak M, Sieradzki A, Šimėnas M, Maczka M. Molecular spectroscopy of hybrid organic–inorganic perovskites and related compounds. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214180] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Chen X, Lu H, Wang K, Zhai Y, Lunin V, Sercel PC, Beard MC. Tuning Spin-Polarized Lifetime in Two-Dimensional Metal-Halide Perovskite through Exciton Binding Energy. J Am Chem Soc 2021; 143:19438-19445. [PMID: 34767709 DOI: 10.1021/jacs.1c08514] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Metal-halide perovskite semiconductors have attracted attention for opto-spintronic applications where the manipulation of charge and spin degrees of freedom have the potential to lower power consumption and achieve faster switching times for electronic devices. Lower-dimensional perovskites are of particular interest since the lower degree of symmetry of the metal-halide connected octahedra and the large spin-orbit coupling can potentially lift the spin degeneracy. To achieve their full application potential, long spin-polarized lifetimes and an understanding of spin-relaxation in these systems are needed. Here, we report an intriguing spin-selective excitation of excitons in a series of 2D lead iodide perovskite (n = 1) single crystals by using time- and polarization-resolved transient reflection spectroscopy. Exciton spin relaxation times as long as ∼26 ps at low excitation densities and at room temperature were achieved for a system with small binding energy, 2D EOA2PbI4 (EOA = ethanolamine). By tuning the excitation density and the exciton binding energy, we identify the dominant mechanism as the D'yakonov-Perel (DP) mechanism at low exciton densities and the Bir-Aronov-Pikus (BAP) mechanism at high excitation densities. Together, these results provide new design principles to achieve long spin lifetimes in metal-halide perovskite semiconductors.
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Affiliation(s)
- Xihan Chen
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States.,Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Haipeng Lu
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Kang Wang
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States.,State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yaxin Zhai
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States.,Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics, Hunan Normal University, Changsha 410081, China
| | - Vladimir Lunin
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Peter C Sercel
- Center for Hybrid Organic Inorganic Semiconductors for Energy, Golden, Colorado 80401, United States
| | - Matthew C Beard
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States
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32
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Kim M, Jun H, Lee H, Nahdi H, Tondelier D, Bonnassieux Y, Bourée J, Geffroy B. Halide Ion Migration and its Role at the Interfaces in Perovskite Solar Cells. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Minjin Kim
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
| | - Haeyeon Jun
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
- Synchrotron SOLEIL L'Orme des Merisiers Saint-Aubin BP 48 91192 Gif-sur-Yvette Cedex France
| | - Heejae Lee
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
| | - Hindia Nahdi
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
- SEGULA Technologies 19 Rue d'Arras 92000 Nanterre France
| | - Denis Tondelier
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
| | - Yvan Bonnassieux
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
| | - Jean‐Éric Bourée
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
| | - Bernard Geffroy
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91128 Palaiseau France
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN 91191 Gif-sur-Yvette France
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33
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Liang Y, Cui X, Li F, Stampfl C, Huang J, Ringer SP, Zheng R. Hydrogen-Anion-Induced Carrier Recombination in MAPbI 3 Perovskite Solar Cells. J Phys Chem Lett 2021; 12:10677-10683. [PMID: 34709819 DOI: 10.1021/acs.jpclett.1c03061] [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
Identification and passivation of defect-induced electron-hole recombination centers are currently crucial for improving the efficiency of hybrid perovskite solar cells. Besides general intrinsic defects, experimental reports have indicated that hydrogen interstitials are also abundant in hybrid perovskite layers; however, few reports have evaluated the effect of such defects on the charge carrier recombination and device efficiencies. Here, we reveal that under I-poor synthesis conditions, the negatively charged monatomic hydrogen interstitial, Hi-, will form in the prototypical CH3NH3PbI3 perovskite layer, acting as a detrimental deep-level defect, which leads to efficient electron-hole recombination and lowers the cell performance. We further rationalize that Br doping can mitigate the large atomic displacement caused by the presence of Hi- and hence suppress the formation of the deep localized state. The results advance the knowledge of the deep-level defects in hybrid perovskites and provide useful information for enhancing solar cell performance by defect engineering.
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Affiliation(s)
- Yuhang Liang
- School of Physics, The University of Sydney, Sydney, NSW 2006, Australia
| | - Xiangyuan Cui
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Feng Li
- School of Physics, The University of Sydney, Sydney, NSW 2006, Australia
| | - Catherine Stampfl
- School of Physics, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jun Huang
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Simon P Ringer
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Rongkun Zheng
- School of Physics, The University of Sydney, Sydney, NSW 2006, Australia
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34
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Maeng I, Tanaka H, Mag-usara VK, Nakajima M, Nakamura M, Jung MC. Terahertz Wave Absorption Property of all Mixed Organic-Inorganic Hybrid Perovskite Thin Film MA(Sn, Pb)(Br, I) 3 Fabricated by Sequential Vacuum Evaporation Method. Front Chem 2021; 9:753141. [PMID: 34604176 PMCID: PMC8481619 DOI: 10.3389/fchem.2021.753141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/02/2021] [Indexed: 12/05/2022] Open
Abstract
All mixed hybrid perovskite (MA(Sn, Pb)(Br,I)3) thin film was fabricated by sequential vacuum evaporation method. To optimize the first layer with PbBr2 and SnI2, we performed different annealing treatments. Further, MA(Sn, Pb)(Br, I)3 thin film was synthesized on the optimized first layer by evaporating MAI and post-annealing. The formed hybrid perovskite thin film exhibited absorptions at 1.0 and 1.7 THz with small absorbance (<10%). Moreover, no chemical and structural defect-incorporated absorption was found. In this study, the possibility of changing terahertz absorption frequency through the mixture of metal cations (Sn+ and Pb+) and halogen anions (Br- and I-) was verified.
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Affiliation(s)
- Inhee Maeng
- YUHS-KRIBB, Medical Convergence Research Institute, College of Medicine, Yonsei University, Seoul, South Korea
| | - Hiroshi Tanaka
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, Japan
| | | | - Makoto Nakajima
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - Masakazu Nakamura
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, Japan
| | - Min-Cherl Jung
- Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, Ibaraki, Japan
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35
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Minussi FB, Reis SP, Araújo EB. DC bias electric field effects on ac electrical conductivity of MAPbI 3suggesting intrinsic changes on structure and charge carrier dynamics. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:475702. [PMID: 34464945 DOI: 10.1088/1361-648x/ac2271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
Methylammonium lead iodide (MAPbI3) emerges as a promising halide perovskite material for the next generation of solar cells due to its high efficiency and flexibility in material growth. Despite intensive studies of their optical and electronic properties in the past ten years, there are no reports on dc bias electric field effects on conductivity in a wide temperature range. In this work, we report the combined effects of frequency, temperature, and dc bias electric field on the ac conductivity of MAPbI3. We found that the results of dc bias electric fields are very contrasting in the tetragonal and cubic phases. In the tetragonal phase, sufficiently high dc bias electric fields induce a conductivity peak appearance ∼290 K well evidenced at frequencies higher than 100 kHz. Excluding possible degradation and extrinsic factors, we propose that this peak suggests a ferroelectric-like transition. In the absence of a dc bias electric field, the ac conductivity in the tetragonal phase increases with temperature while decreases with temperature in the cubic phase. Also, ac activation energies for tetragonal and cubic phases were found to be inversely and directly proportional to the dc bias electric field, respectively. This behavior was attributed to the ionic conduction, possibly of MA+and I-ions, for the tetragonal phase. As for the cubic phase, the ac conduction dynamics appear to be metallic-like, which seems to change to a polaronic-controlled charge transport to increased dc bias electric fields.
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Affiliation(s)
- F B Minussi
- Department of Physics and Chemistry, São Paulo State University, 15385-000 Ilha Solteira, Brazil
| | - S P Reis
- Department of Physics and Chemistry, São Paulo State University, 15385-000 Ilha Solteira, Brazil
- Federal Institute of Education, Science and Technology of São Paulo, 15503-110 Votuporanga, Brazil
| | - E B Araújo
- Department of Physics and Chemistry, São Paulo State University, 15385-000 Ilha Solteira, Brazil
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36
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Li W, Wu X. Advanced cathode materials in dual‐ion batteries: Progress and prospect. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Wen‐Hao Li
- MOE Key Laboratory for UV Light‐Emitting Materials and Technology Northeast Normal University Changchun Jilin P. R. China
| | - Xing‐Long Wu
- MOE Key Laboratory for UV Light‐Emitting Materials and Technology Northeast Normal University Changchun Jilin P. R. China
- National & Local United Engineering Laboratory for Power Batteries Faculty of Chemistry Northeast Normal University Changchun Jilin P. R. China
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37
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Pandit A, Hamad B. The effect of finite-temperature and anharmonic lattice dynamics on the thermal conductivity of ZrS 2monolayer: self-consistent phonon calculations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:425405. [PMID: 34315140 DOI: 10.1088/1361-648x/ac1822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
Two-dimensional (2D) ZrS2monolayer (ML) has emerged as a promising candidate for thermoelectric (TE) device applications due to its high TE figure of merit, which is mainly contributed by its inherently low lattice thermal conductivity (LTC). This work investigates the effect of the lattice anharmonicity driven by the temperature-dependent phonon dispersions on the thermal transport of ZrS2ML. The calculations are based on the self-consistent phonon (SCP) theory to calculate the thermodynamic parameters along with the LTC. The higher-order (quartic) force constants were extracted by using an efficient compressive sensing lattice dynamics technique, which estimates the necessary data based on the emerging machine learning program as an alternative of computationally expensive density functional theory calculations. Resolve of the degeneracy and hardening of the vibrational frequencies of low-energy optical modes were predicted upon including the quartic anharmonicity. As compared to the conventional Boltzmann transport equation (BTE) approach, the LTC of the optimized ZrS2ML unit cell within SCP + BTE approach is found to be significantly enhanced (e.g., by 21% at 300 K). This enhancement is due to the relatively lower value of phonon linewidth contributed by the anharmonic frequency renormalization included in the SCP theory. Mainly, the conventional BTE approach neglects the temperature dependence of the phonon frequencies due to the consideration of harmonic lattice dynamics and treats the normal process of three-phonon scattering incorrectly due to the use of quasi-particle lifetimes. These limitations are addressed in this work within the SCP + BTE approach, which signifies the validity and accuracy of this approach.
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Affiliation(s)
- Abhiyan Pandit
- Physics Department, University of Arkansas, Fayetteville, AR 72701, United States of America
| | - Bothina Hamad
- Physics Department, University of Arkansas, Fayetteville, AR 72701, United States of America
- Physics Department, The University of Jordan, Amman-11942, Jordan
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38
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Straus DB, Mitchell Warden HE, Cava RJ. s-p Mixing in Stereochemically Active Lone Pairs Drives the Formation of 1D Chains of Lead Bromide Square Pyramids. Inorg Chem 2021; 60:12676-12680. [PMID: 34375087 DOI: 10.1021/acs.inorgchem.1c01277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In lead(II) halide compounds including virtually all lead halide perovskites, the Pb2+ 6s lone pair results in distorted octahedra, in accordance with the pseudo-Jahn-Teller effect, rather than generating hemihedral coordination polyhedra. Here, in contrast, we report the characterization of an organic-inorganic hybrid material consisting of one-dimensional edge-sharing chains of Pb-Br square pyramids, separated by [Mn(DMF)6]2+ (DMF = dimethylformamide) octahedra. Molecular orbital analysis and density-functional theory calculations indicate that square pyramidal coordination about Pb2+ results from the occupancy of the empty ligand site by a Pb2+ lone pair that has both s and p orbital character rather than the exclusively 6s lone pair. These results demonstrate that a Pb2+ lone pair can be exploited to behave like a ligand in lead halide compounds, greatly expanding the realm of possible lead halide materials to include extended solids with nonoctahedral coordination environments.
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Affiliation(s)
- Daniel B Straus
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | | | - Robert J Cava
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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39
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Kronik L, Rappe AM. Hydrogen freedom linked to perovskite efficiency. NATURE MATERIALS 2021; 20:914-915. [PMID: 33927393 DOI: 10.1038/s41563-021-01010-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Leeor Kronik
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth, Israel.
| | - Andrew M Rappe
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA
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40
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Shin D, Zu F, Cohen AV, Yi Y, Kronik L, Koch N. Mechanism and Timescales of Reversible p-Doping of Methylammonium Lead Triiodide by Oxygen. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100211. [PMID: 33938045 DOI: 10.1002/adma.202100211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/05/2021] [Indexed: 06/12/2023]
Abstract
Understanding and controlling the energy level alignment at interfaces with metal halide perovskites (MHPs) is essential for realizing the full potential of these materials for use in optoelectronic devices. To date, however, the basic electronic properties of MHPs are still under debate. Particularly, reported Fermi level positions in the energy gap vary from indicating strong n- to strong p-type character for nominally identical materials, raising serious questions about intrinsic and extrinsic defects as dopants. In this work, photoemission experiments demonstrate that thin films of the prototypical methylammonium lead triiodide (MAPbI3 ) behave like an intrinsic semiconductor in the absence of oxygen. Oxygen is then shown to be able to reversibly diffuse into and out of the MAPbI3 bulk, requiring rather long saturation timescales of ≈1 h (in: ambient air) and over 10 h (out: ultrahigh vacuum), for few 100 nm thick films. Oxygen in the bulk leads to pronounced p-doping, positioning the Fermi level universally ≈0.55 eV above the valence band maximum. The key doping mechanism is suggested to be molecular oxygen substitution of iodine vacancies, supported by density functional theory calculations. This insight rationalizes previous and future electronic property studies of MHPs and calls for meticulous oxygen exposure protocols.
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Affiliation(s)
- Dongguen Shin
- Institut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489, Berlin, Germany
| | - Fengshuo Zu
- Institut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Ayala V Cohen
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth, 76100, Israel
| | - Yeonjin Yi
- Institute of Physics and Applied Physics & Van der Waals Materials Research Center, Yonsei University, Seoul, 03722, Republic of Korea
| | - Leeor Kronik
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth, 76100, Israel
| | - Norbert Koch
- Institut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489, Berlin, Germany
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41
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Younis A, Lin CH, Guan X, Shahrokhi S, Huang CY, Wang Y, He T, Singh S, Hu L, Retamal JRD, He JH, Wu T. Halide Perovskites: A New Era of Solution-Processed Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005000. [PMID: 33938612 DOI: 10.1002/adma.202005000] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/29/2020] [Indexed: 05/26/2023]
Abstract
Organic-inorganic mixed halide perovskites have emerged as an excellent class of materials with a unique combination of optoelectronic properties, suitable for a plethora of applications ranging from solar cells to light-emitting diodes and photoelectrochemical devices. Recent works have showcased hybrid perovskites for electronic applications through improvements in materials design, processing, and device stability. Herein, a comprehensive up-to-date review is presented on hybrid perovskite electronics with a focus on transistors and memories. These applications are supported by the fundamental material properties of hybrid perovskite semiconductors such as tunable bandgap, ambipolar charge transport, reasonable mobility, defect characteristics, and solution processability, which are highlighted first. Then, recent progresses on perovskite-based transistors are reviewed, covering aspects of fabrication process, patterning techniques, contact engineering, 2D versus 3D material selection, and device performance. Furthermore, applications of perovskites in nonvolatile memories and artificial synaptic devices are presented. The ambient instability of hybrid perovskites and the strategies to tackle this bottleneck are also discussed. Finally, an outlook and opportunities to develop perovskite-based electronics as a competitive and feasible technology are highlighted.
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Affiliation(s)
- Adnan Younis
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
- Department of Physics, College of Science, University of Bahrain, P.O. Box 32038, Sakhir Campus, Zallaq, Kingdom of Bahrain
| | - Chun-Ho Lin
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Xinwei Guan
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Shamim Shahrokhi
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Chien-Yu Huang
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yutao Wang
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Tengyue He
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Simrjit Singh
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jose Ramon Duran Retamal
- Computer, Electrical and Mathematical Sciences and Engineering, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jr-Hau He
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
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42
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Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH 3NH 3PbI 3-xCl x thin films. Sci Rep 2021; 11:10772. [PMID: 34031506 PMCID: PMC8144584 DOI: 10.1038/s41598-021-90247-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 04/30/2021] [Indexed: 11/12/2022] Open
Abstract
In this paper we explain the temperature dependence of excitonic effective mass and charge carrier conduction mechanism occurs in CH3NH3PbI3−xClx thin films prepared by chemical dip coating (CDC), spray pyrolysis (Spray) and repeated dipping-withdrawing (Dipping). Hall Effect study confirmed that prepared CH3NH3PbI3−xClx samples are p-type semiconductor having carrier concentration of the order of ~ 1016 cm−3. The charge carrier mobility, mean free path and mean free life time were found to decrease with increasing temperature due to polaronic effect. The excitonic effective mass is estimated to (0.090–0.196)me and excitonic binding energy (15–33) meV, well consistent with Wannier-Mott hydrogenic model and the nature of exciton is likely to be Mott-Wannier type. From electrical measurement, it was observed that charge carrier conduction in CH3NH3PbI3−xClx is governed by migration of \documentclass[12pt]{minimal}
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\begin{document}$${\mathrm{I}}^{-}$$\end{document}I- and CH3N \documentclass[12pt]{minimal}
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\begin{document}$${\mathrm{H}}_{3}^{+}$$\end{document}H3+ vacancies and vacancy-assisted diffusion processes depending on temperature.
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43
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Jahanbakhshi F, Mladenović M, Dankl M, Boziki A, Ahlawat P, Rothlisberger U. Organic Spacers in 2D Perovskites: General Trends and Structure‐Property Relationships from Computational Studies. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202000232] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Farzaneh Jahanbakhshi
- Laboratory of Computational Chemistry and Biochemistry École Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Marko Mladenović
- Laboratory of Computational Chemistry and Biochemistry École Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Mathias Dankl
- Laboratory of Computational Chemistry and Biochemistry École Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Ariadni Boziki
- Laboratory of Computational Chemistry and Biochemistry École Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Paramvir Ahlawat
- Laboratory of Computational Chemistry and Biochemistry École Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Ursula Rothlisberger
- Laboratory of Computational Chemistry and Biochemistry École Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
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44
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Le Corre VM, Duijnstee EA, El Tambouli O, Ball JM, Snaith HJ, Lim J, Koster LJA. Revealing Charge Carrier Mobility and Defect Densities in Metal Halide Perovskites via Space-Charge-Limited Current Measurements. ACS ENERGY LETTERS 2021. [PMID: 33869770 DOI: 10.1021/acsenergylett.9b02720] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Space-charge-limited current (SCLC) measurements have been widely used to study the charge carrier mobility and trap density in semiconductors. However, their applicability to metal halide perovskites is not straightforward, due to the mixed ionic and electronic nature of these materials. Here, we discuss the pitfalls of SCLC for perovskite semiconductors, and especially the effect of mobile ions. We show, using drift-diffusion (DD) simulations, that the ions strongly affect the measurement and that the usual analysis and interpretation of SCLC need to be refined. We highlight that the trap density and mobility cannot be directly quantified using classical methods. We discuss the advantages of pulsed SCLC for obtaining reliable data with minimal influence of the ionic motion. We then show that fitting the pulsed SCLC with DD modeling is a reliable method for extracting mobility, trap, and ion densities simultaneously. As a proof of concept, we obtain a trap density of 1.3 × 1013 cm-3, an ion density of 1.1 × 1013 cm-3, and a mobility of 13 cm2 V-1 s-1 for a MAPbBr3 single crystal.
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Affiliation(s)
- Vincent M Le Corre
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Elisabeth A Duijnstee
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Omar El Tambouli
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - James M Ball
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Henry J Snaith
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Jongchul Lim
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - L Jan Anton Koster
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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45
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Le Corre VM, Duijnstee EA, El Tambouli O, Ball JM, Snaith HJ, Lim J, Koster LJA. Revealing Charge Carrier Mobility and Defect Densities in Metal Halide Perovskites via Space-Charge-Limited Current Measurements. ACS ENERGY LETTERS 2021; 6:1087-1094. [PMID: 33869770 PMCID: PMC8043077 DOI: 10.1021/acsenergylett.0c02599] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/23/2021] [Indexed: 05/14/2023]
Abstract
Space-charge-limited current (SCLC) measurements have been widely used to study the charge carrier mobility and trap density in semiconductors. However, their applicability to metal halide perovskites is not straightforward, due to the mixed ionic and electronic nature of these materials. Here, we discuss the pitfalls of SCLC for perovskite semiconductors, and especially the effect of mobile ions. We show, using drift-diffusion (DD) simulations, that the ions strongly affect the measurement and that the usual analysis and interpretation of SCLC need to be refined. We highlight that the trap density and mobility cannot be directly quantified using classical methods. We discuss the advantages of pulsed SCLC for obtaining reliable data with minimal influence of the ionic motion. We then show that fitting the pulsed SCLC with DD modeling is a reliable method for extracting mobility, trap, and ion densities simultaneously. As a proof of concept, we obtain a trap density of 1.3 × 1013 cm-3, an ion density of 1.1 × 1013 cm-3, and a mobility of 13 cm2 V-1 s-1 for a MAPbBr3 single crystal.
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Affiliation(s)
- Vincent M. Le Corre
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Elisabeth A. Duijnstee
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Clarendon
Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United
Kingdom
| | - Omar El Tambouli
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - James M. Ball
- Clarendon
Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United
Kingdom
| | - Henry J. Snaith
- Clarendon
Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United
Kingdom
| | - Jongchul Lim
- Clarendon
Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United
Kingdom
| | - L. Jan Anton Koster
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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46
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Kheralla A, Chetty N. A review of experimental and computational attempts to remedy stability issues of perovskite solar cells. Heliyon 2021; 7:e06211. [PMID: 33644476 PMCID: PMC7895729 DOI: 10.1016/j.heliyon.2021.e06211] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/19/2020] [Accepted: 02/03/2021] [Indexed: 11/25/2022] Open
Abstract
Photovoltaic technology using perovskite solar cells has emerged as a potential solution in the photovoltaic makings for cost-effective manufacturing solutions deposition/coating solar cells. The hybrid perovskite-based materials possess a unique blend from low bulk snare concentrations, ambipolar, broad optical absorption properties, extended charge carrier diffusion, and charge transport/collection properties, making them favourable for solar cell applications. However, perovskite solar cells devices suffer from the effects of natural instability, leading to their rapid degradation while bared to water, oxygen, as well as ultraviolet rays, are irradiated and in case of high temperatures. It is essential to shield the perovskite film from damage, extend lifetime, and make it suitable for device fabrications. This paper focuses on various device strategies and computational attempts to address perovskite-based solar cells' environmental stability issues.
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Affiliation(s)
- Adam Kheralla
- School of Physics and Chemistry, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa
| | - Naven Chetty
- School of Physics and Chemistry, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa
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47
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Cui X, Wang P, Shi B, Zhao Y, Zhang X. Insights into the effect of bromine‐based organic salts on the efficiency and stability of wide bandgap perovskite. NANO SELECT 2021. [DOI: 10.1002/nano.202000183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Xinghua Cui
- Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center Solar Energy Conversion Center Nankai University Tianjin P.R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin P.R. China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin P.R. China
| | - Pengyang Wang
- Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center Solar Energy Conversion Center Nankai University Tianjin P.R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin P.R. China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin P.R. China
| | - Biao Shi
- Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center Solar Energy Conversion Center Nankai University Tianjin P.R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin P.R. China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin P.R. China
| | - Ying Zhao
- Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center Solar Energy Conversion Center Nankai University Tianjin P.R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin P.R. China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin P.R. China
| | - Xiaodan Zhang
- Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center Solar Energy Conversion Center Nankai University Tianjin P.R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin P.R. China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin P.R. China
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48
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Ozório MS, Srikanth M, Besse R, Da Silva JLF. The role of the A-cations in the polymorphic stability and optoelectronic properties of lead-free ASnI 3 perovskites. Phys Chem Chem Phys 2021; 23:2286-2297. [PMID: 33443529 DOI: 10.1039/d0cp06090a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Tin-based ASnI3 perovskites have been considered excellent candidates for lead-free perovskite solar cell applications; however, our atomistic understanding of the role of the A-cations, namely, CH3NH3 (methylammonium, MA), CH3PH3 (methylphosphonium, MP) and CH(NH2)2 (formamidinium, FA), in the physical chemistry properties is far from satisfactory. For the first time, we report a density functional theory investigation of the MPSnI3 perovskite and non-perovskite phases as well as their comparison with the MASnI3 and FASnI3 phases, where we considered the role of the A-cation orientations in the structural stability of the ASnI3 phases. The orthorhombic structure is the most stable studied phase, which agrees with experimentally reported phase-transition trends. In contrast with the cation size and the weak hydrogen bonding interactions, which contribute to structural cohesion between the inorganic framework and A-cation, the dipole-dipole interactions play an important role to drive the structures to the lowest energy configurations. From our analysis, the inorganic framework dominates the optical properties, band structure, and density of states around the band edges. Broader absorption and smaller band gap energies occur for the perovskite structures compared to the low-dimensional hexagonal/pseudo-hexagonal non-perovskites.
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Affiliation(s)
- Mailde S Ozório
- São Carlos Institute of Chemistry, University of São Paulo, PO Box 780, 13560-970, São Carlos, São Paulo, Brazil.
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49
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Li X, Hoffman JM, Kanatzidis MG. The 2D Halide Perovskite Rulebook: How the Spacer Influences Everything from the Structure to Optoelectronic Device Efficiency. Chem Rev 2021; 121:2230-2291. [PMID: 33476131 DOI: 10.1021/acs.chemrev.0c01006] [Citation(s) in RCA: 267] [Impact Index Per Article: 89.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Two-dimensional (2D) halide perovskites have emerged as outstanding semiconducting materials thanks to their superior stability and structural diversity. However, the ever-growing field of optoelectronic device research using 2D perovskites requires systematic understanding of the effects of the spacer on the structure, properties, and device performance. So far, many studies are based on trial-and-error tests of random spacers with limited ability to predict the resulting structure of these synthetic experiments, hindering the discovery of novel 2D materials to be incorporated into high-performance devices. In this review, we provide guidelines on successfully choosing spacers and incorporating them into crystalline materials and optoelectronic devices. We first provide a summary of various synthetic methods to act as a tutorial for groups interested in pursuing synthesis of novel 2D perovskites. Second, we provide our insights on what kind of spacer cations can stabilize 2D perovskites followed by an extensive review of the spacer cations, which have been shown to stabilize 2D perovskites with an emphasis on the effects of the spacer on the structure and optical properties. Next, we provide a similar explanation for the methods used to fabricate films and their desired properties. Like the synthesis section, we will then focus on various spacers that have been used in devices and how they influence the film structure and device performance. With a comprehensive understanding of these effects, a rational selection of novel spacers can be made, accelerating this already exciting field.
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Affiliation(s)
- Xiaotong Li
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Justin M Hoffman
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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50
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Trivedi S, Prochowicz D, Parikh N, Mahapatra A, Pandey MK, Kalam A, Tavakoli MM, Yadav P. Recent Progress in Growth of Single-Crystal Perovskites for Photovoltaic Applications. ACS OMEGA 2021; 6:1030-1042. [PMID: 33490762 PMCID: PMC7818074 DOI: 10.1021/acsomega.0c04593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
The growth of high-quality single-crystal (SC) perovskite films is a great strategy for the fabrication of defect-free perovskite solar cells (PSCs) with photovoltaic parameters close to the theoretical limit, which resulted in high efficiency and superior stability of the device. Plenty of growth methods for perovskite SCs are available to achieve a maximum power conversion efficiency (PCE) surpassing 21% for SC-based PSCs. However, there is still a lot of room to further push the efficiency by considering new crystal growth techniques, interface engineering, passivation approaches, and additive engineering. In this review, we summarize the recent progress in the growth of SC-based perovskite films for the fabrication of high-efficiency and stable PSCs. We describe the impact of SC growth of perovskite films and their quality on the device performance and stability, compared with the commonly used polycrystalline perovskite films. In the last section, the challenges and potential of SCs in PSCs are also covered for future development.
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Affiliation(s)
- Suverna Trivedi
- Department
of Chemical Engineering, National Institute
of Technology, Rourkela 769008, India
| | - Daniel Prochowicz
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Nishi Parikh
- Department
of Science, School of Technology, Pandit
Deendayal Petroleum University, Gandhinagar 382 007, Gujarat, India
| | - Apurba Mahapatra
- Department
of Physics & Astronomy, National Institute
of Technology, Rourkela 769008, India
| | - Manoj Kumar Pandey
- Department
of Science, School of Technology, Pandit
Deendayal Petroleum University, Gandhinagar 382 007, Gujarat, India
| | - Abul Kalam
- Department
of Chemistry, Faculty of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Mohammad Mahdi Tavakoli
- Department
of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Pankaj Yadav
- Department
of Solar Energy, School of Technology, Pandit
Deendayal Petroleum University, Gandhinagar 382 007, Gujarat, India
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