1
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Sidhik S, Metcalf I, Li W, Kodalle T, Dolan CJ, Khalili M, Hou J, Mandani F, Torma A, Zhang H, Garai R, Persaud J, Marciel A, Muro Puente IA, Reddy GNM, Balvanz A, Alam MA, Katan C, Tsai E, Ginger D, Fenning DP, Kanatzidis MG, Sutter-Fella CM, Even J, Mohite AD. Two-dimensional perovskite templates for durable, efficient formamidinium perovskite solar cells. Science 2024; 384:1227-1235. [PMID: 38870286 DOI: 10.1126/science.abq6993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/28/2024] [Indexed: 06/15/2024]
Abstract
We present a design strategy for fabricating ultrastable phase-pure films of formamidinium lead iodide (FAPbI3) by lattice templating using specific two-dimensional (2D) perovskites with FA as the cage cation. When a pure FAPbI3 precursor solution is brought in contact with the 2D perovskite, the black phase forms preferentially at 100°C, much lower than the standard FAPbI3 annealing temperature of 150°C. X-ray diffraction and optical spectroscopy suggest that the resulting FAPbI3 film compresses slightly to acquire the (011) interplanar distances of the 2D perovskite seed. The 2D-templated bulk FAPbI3 films exhibited an efficiency of 24.1% in a p-i-n architecture with 0.5-square centimeter active area and an exceptional durability, retaining 97% of their initial efficiency after 1000 hours under 85°C and maximum power point tracking.
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Affiliation(s)
- Siraj Sidhik
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Isaac Metcalf
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA
| | - Wenbin Li
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, TX 77005, USA
| | - Tim Kodalle
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Connor J Dolan
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Mohammad Khalili
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Jin Hou
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA
| | - Faiz Mandani
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Andrew Torma
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, TX 77005, USA
| | - Hao Zhang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, TX 77005, USA
| | - Rabindranath Garai
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Jessica Persaud
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Amanda Marciel
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
| | - Itzel Alejandra Muro Puente
- Centrale Lille Institut, Univ. Artois, University of Lille, CNRS, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - G N Manjunatha Reddy
- Centrale Lille Institut, Univ. Artois, University of Lille, CNRS, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Adam Balvanz
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Muhammad A Alam
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Claudine Katan
- École Nationale Supérieure de Chimie de Rennes (ENSCR), Université Rennes, CNRS, Institut des Sciences Chimiques de Rennes (ISCR)-UMR 6226, F-35000 Rennes, France
| | - Esther Tsai
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - David Ginger
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - David P Fenning
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Mercouri G Kanatzidis
- Department of Chemistry and Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | | | - Jacky Even
- Institut National des Sciences Appliquées (INSA) Rennes, Université Rennes, CNRS, Institut Fonctions Optiques pour les Technologies de l'Information (FOTON)-UMR 6082, F-35000 Rennes, France
| | - Aditya D Mohite
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
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2
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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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3
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Kalita D, Nandi P, Sahu P, Schoekel A, van Embden J, Topwal D, Manju U. Dynamic Structural Evolution and Dual Emission Behavior in Hybrid Organic Lead Bromide Perovskites. J Phys Chem Lett 2024; 15:2557-2565. [PMID: 38416012 DOI: 10.1021/acs.jpclett.4c00250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
The optoelectronic properties of organic lead halide perovskites (OLHPs) strongly depend on their underlying crystal symmetry and dynamics. Here, we exploit temperature-dependent synchrotron powder X-ray diffraction and temperature-dependent photoluminescence to investigate how the subtle structural changes happening in the pure and mixed A-site cation MA1-xFAxPbBr3 (x = 0, 0.5, and 1) systems influences their optoelectronic properties. Diffraction investigations reveal a cubic structure at high temperatures and tetragonal and orthorhombic structures with octahedral distortion at low temperatures. Steady state photoluminescence and time correlated single photon counting study reveals that the dual emission behavior of these OLHPs is due to the direct-indirect band formation. In the orthorhombic phase of MAPbBr3, the indirect band is dominated by self-trapped exciton (STE) emission due to the higher-order lattice distortions of PbBr6 octahedra. Our findings provide a comprehensive explanation of the dual emission behavior of OLHPs while also providing a rationale for previous experimental observations.
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Affiliation(s)
- Dhiman Kalita
- Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pronoy Nandi
- Department of Energy Science, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Puspanjali Sahu
- Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | | | - Joel van Embden
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
| | - Dinesh Topwal
- Institute of Physics, Bhubaneswar 751005, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Unnikrishnan Manju
- Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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4
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Zhang H, Zhang T, Wang Y, Chen Y, Zhao Y, Chen J. Lattice disorder influences the photocarrier dynamics in lead halide perovskites. MATERIALS HORIZONS 2023; 10:875-880. [PMID: 36651318 DOI: 10.1039/d2mh01212j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Revealing the structural impact of lead halide perovskites on photocarrier dynamics is essential for the associated solar cells but deficient in experimental visualization. In this study, with femtosecond spectroscopy, we for the first time explored the contribution of the disorder of the distorted PbX6 octahedrons and A-site cations on the carrier behaviours. It was found that photoinduced carriers recombine almost twice slower and diffuse 20% faster in the disordered, β-phased samples than in the ordered, γ-phased ones. Yet within the same phase, with a similar PbX6 orientation but various A-site mobility, the carrier diffusion and recombination have no apparent difference. Thus we firmly conclude that lattice disorder effectively influences the carrier dynamics and therein the Pb-X sublattice is worth more than A-site cations, which should inspire future lead halide perovskite design and applications.
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Affiliation(s)
- Haijuan Zhang
- Center for Ultrafast Science and Technology, Key Laboratory for Laser Plasmas (Ministry of Education), School of Physics and Astronomy, Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Taiyang Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Yong Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Yuetian Chen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Yixin Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Jie Chen
- Center for Ultrafast Science and Technology, Key Laboratory for Laser Plasmas (Ministry of Education), School of Physics and Astronomy, Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
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5
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Soultati A, Tountas M, Armadorou KK, Yusoff ARBM, Vasilopoulou M, Nazeeruddin MK. Synthetic approaches for perovskite thin films and single-crystals. ENERGY ADVANCES 2023; 2:1075-1115. [DOI: 10.1039/d3ya00098b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Halide perovskites are compelling candidates for the next generation of photovoltaic technologies owing to an unprecedented increase in power conversion efficiency and their low cost, facile fabrication and outstanding semiconductor properties.
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Affiliation(s)
- Anastasia Soultati
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research Demokritos, 15341 Agia Paraskevi, Attica, Greece
| | - Marinos Tountas
- Department of Electrical Engineering, Hellenic Mediterranean University, Estavromenos, 71410 Heraklion Crete, Greece
| | - Konstantina K. Armadorou
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research Demokritos, 15341 Agia Paraskevi, Attica, Greece
| | - Abd. Rashid bin Mohd Yusoff
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Maria Vasilopoulou
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research Demokritos, 15341 Agia Paraskevi, Attica, Greece
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l’Industrie 17, CH-1951 Sion, Switzerland
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6
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Mishra A, Hope MA, Grätzel M, Emsley L. A Complete Picture of Cation Dynamics in Hybrid Perovskite Materials from Solid-State NMR Spectroscopy. J Am Chem Soc 2022; 145:978-990. [PMID: 36580303 PMCID: PMC9853870 DOI: 10.1021/jacs.2c10149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The organic cations in hybrid organic-inorganic perovskites rotate rapidly inside the cuboctahedral cavities formed by the inorganic lattice, influencing optoelectronic properties. Here, we provide a complete quantitative picture of cation dynamics for formamidinium-based perovskites and mixed-cation compositions, which are the most widely used and promising absorber layers for perovskite solar cells today. We use 2H and 14N quadrupolar solid-state NMR relaxometry under magic-angle spinning to determine the activation energy (Ea) and correlation time (τc) at room temperature for rotation about each principal axis of a series of organic cations. Specifically, we investigate methylammonium (MA+), formamidinium (FA+), and guanidinium (GUA+) cations in current state-of-the-art single- and multi-cation perovskite compositions. We find that MA+, FA+, and GUA+ all have at least one component of rotation that occurs on the picosecond timescale at room temperature, with MA+ and GUA+ also exhibiting faster and slower components, respectively. The cation dynamics depend on the symmetry of the inorganic lattice but are found to be insensitive to the degree of cation substitution. In particular, the FA+ rotation is invariant across all compositions studied here, when sufficiently above the phase transition temperature. We further identify an unusual relaxation mechanism for the 2H of MA+ in mechanosynthesized FAxMA1-xPbI3, which was found to result from physical diffusion to paramagnetic defects. This precise picture of cation dynamics will enable better understanding of the relationship between the organic cations and the optoelectronic properties of perovskites, guiding the design principles for more efficient perovskite solar cells in the future.
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7
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Bai Y, Huang Z, Zhang X, Lu J, Niu X, He Z, Zhu C, Xiao M, Song Q, Wei X, Wang C, Cui Z, Dou J, Chen Y, Pei F, Zai H, Wang W, Song T, An P, Zhang J, Dong J, Li Y, Shi J, Jin H, Chen P, Sun Y, Li Y, Chen H, Wei Z, Zhou H, Chen Q. Initializing film homogeneity to retard phase segregation for stable perovskite solar cells. Science 2022; 378:747-754. [DOI: 10.1126/science.abn3148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The mixtures of cations and anions used in hybrid halide perovskites for high-performance solar cells often undergo element and phase segregation, which limits device lifetime. We adapted Schelling’s model of segregation to study individual cation migration and found that the initial film inhomogeneity accelerates materials degradation. We fabricated perovskite films (FA
1–x
Cs
x
PbI
3
; where FA is formamidinium) through the addition of selenophene, which led to homogeneous cation distribution that retarded cation aggregation during materials processing and device operation. The resultant devices achieved enhanced efficiency and retained >91% of their initial efficiency after 3190 hours at the maximum power point under 1 sun illumination. We also observe prolonged operational lifetime in devices with initially homogeneous FACsPb(Br
0.13
I
0.87
)
3
absorbers.
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Affiliation(s)
- Yang Bai
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Zijian Huang
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, P. R. China
| | - Xiao Zhang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Jiuzhou Lu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Xiuxiu Niu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Ziwen He
- Center for Research on Intelligent Perception and Computing, National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Cheng Zhu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Mengqi Xiao
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Qizhen Song
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Xueyuan Wei
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Chenyue Wang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Zhenhua Cui
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Jing Dou
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Yihua Chen
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Fengtao Pei
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Huachao Zai
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, P. R. China
| | - Wei Wang
- Center for Research on Intelligent Perception and Computing, National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Tinglu Song
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Pengfei An
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jing Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Juncai Dong
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yiming Li
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jiangjian Shi
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Haibo Jin
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Pengwan Chen
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Yuchao Sun
- Auner Technology Co., Ltd., Beijing 100084, P. R. China
| | - Yujing Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Haining Chen
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Zhongming Wei
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100083, P. R. China
| | - Huanping Zhou
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, P. R. China
| | - Qi Chen
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, P. R. China
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8
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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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9
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Mishra A, Hope MA, Almalki M, Pfeifer L, Zakeeruddin SM, Grätzel M, Emsley L. Dynamic Nuclear Polarization Enables NMR of Surface Passivating Agents on Hybrid Perovskite Thin Films. J Am Chem Soc 2022; 144:15175-15184. [PMID: 35959925 PMCID: PMC9413210 DOI: 10.1021/jacs.2c05316] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
![]()
Surface and bulk molecular modulators are the key to
improving
the efficiency and stability of hybrid perovskite solar cells. However,
due to their low concentration, heterogeneous environments, and low
sample mass, it remains challenging to characterize their structure
and dynamics at the atomic level, as required to establish structure–activity
relationships. Nuclear magnetic resonance (NMR) spectroscopy has revealed
a wealth of information on the atomic-level structure of hybrid perovskites,
but the inherent insensitivity of NMR severely limits its utility
to characterize thin-film samples. Dynamic nuclear polarization (DNP)
can enhance NMR sensitivity by orders of magnitude, but DNP methods
for perovskite materials have so far been limited. Here, we determined
the factors that limit the efficiency of DNP NMR for perovskite samples
by systematically studying layered hybrid perovskite analogues. We
find that the fast-relaxing dynamic cation is the major impediment
to higher DNP efficiency, while microwave absorption and particle
morphology play a secondary role. We then show that the former can
be mitigated by deuteration, enabling 1H DNP enhancement
factors of up to 100, which can be harnessed to enhance signals from
dopants or additives present in very low concentrations. Specifically,
using this new DNP methodology at a high magnetic field and with small
sample volumes, we have recorded the NMR spectrum of the 20 nm (6
μg) passivating layer on a single perovskite thin film, revealing
a two-dimensional (2D) layered perovskite structure at the surface
that resembles the n = 1 homologue but which has
greater disorder than in bulk layered perovskites.
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Affiliation(s)
- Aditya Mishra
- Laboratory of Magnetic Resonance, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Michael A Hope
- Laboratory of Magnetic Resonance, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Masaud Almalki
- Laboratory of Photonics and Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Lukas Pfeifer
- Laboratory of Photonics and Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Shaik Mohammed Zakeeruddin
- Laboratory of Photonics and Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Lyndon Emsley
- Laboratory of Magnetic Resonance, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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10
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Recent Advances on the Strategies to Stabilize the α-Phase of Formamidinium Based Perovskite Materials. CRYSTALS 2022. [DOI: 10.3390/cryst12050573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Perovskite solar cells (PSC) are considered promising next generation photovoltaic devices due to their low cost and high-power conversion efficiency (PCE). The perovskite material in the photovoltaic devices plays the fundamental role for the unique performances of PSC. Formamidinium based perovskite materials have become a hot-topic for research due to their excellent characteristics, such as a lower band gap (1.48 V), broader light absorption, and better thermal stability compared to methylammonium based perovskite materials. There are four phases of perovskite materials, named the cubic α-phase, tetragonal β-phase, orthorhombic γ-phase, and δ-phase (yellow). Many research focus on the transition of α-phase and δ-phase. α-Phase FA-based perovskite is very useful for photovoltaic application. However, the phase stability of α-phase FA-based perovskite materials is quite poor. It transforms into its useless δ-phase at room temperature. This instability will lead the degradation of PCE and the other optoelectronic properties. For the practical application of PSC, it is urgent to understand more about the mechanism of this transformation and boost the stability of α-Phase FA-based perovskite materials. This review describes the strategies developed in the past several years, such as mixed cations, anion exchange, dimensions controlling, and surface engineering. These discussions present a perspective on the stability of α-phase of FA-based perovskite materials and the coming challenges in this field.
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11
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Holland M, Ruth A, Mielczarek K, Dhas VV, Berry JJ, Irwin MD. Metal Halide Perovskites Demonstrate Radiation Hardness and Defect Healing in Vacuum. ACS APPLIED MATERIALS & INTERFACES 2022; 14:9352-9362. [PMID: 35142505 DOI: 10.1021/acsami.1c24709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Herein, we subject formamidinium lead iodide films to oxygen-containing gases (flowing O2 or free diffusion of lab atmosphere), inert gases (flowing He, Ar, or N2), and vacuum. Our films are irradiated by Cu Kα X-rays and held at 75 °C while X-ray diffraction is recorded. Under all gas conditions, we observe a reproducible 1.1 ± 0.5 Å3 perovskite lattice contraction from an initial unit cell volume of 256.5 ± 0.8 Å3 concurrent with continuous perovskite loss and lead iodide growth. Oxygen-containing gases increase the reaction rates without materially altering perovskite structural changes. Under the same temperature and irradiation conditions in vacuo, a self-healing reaction is observed, exhibited by a reproducible (0.9 ± 0.3 Å3) lattice expansion and stabilization of the perovskite. Interactions between the perovskite, defects, and minority phases are simulated by generalized gradient approximation Perdew-Burke-Ernzerhof (GGA-PBE) density functional theory. Lattice contraction indicates an increase in the concentration of Schottky defects─pairs of formamidinium and iodine vacancies. Under irradiation in every atmospheric condition, a solid solution of Schottky defects with a concentration of several percent diffuses and precipitates forming lead iodide and consuming the defects. In the presence of ionized gases, this framework is modified to include the continual loss of formamidinium and iodine ions from the perovskite forming Schottky defects.
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Affiliation(s)
- Michael Holland
- CubicPV Inc., 1807 Ross Avenue, Suite 333, Dallas, Texas 75201, United States
| | - Anthony Ruth
- CubicPV Inc., 1807 Ross Avenue, Suite 333, Dallas, Texas 75201, United States
| | - Kamil Mielczarek
- CubicPV Inc., 1807 Ross Avenue, Suite 333, Dallas, Texas 75201, United States
| | - Vivek V Dhas
- CubicPV Inc., 1807 Ross Avenue, Suite 333, Dallas, Texas 75201, United States
| | - Joseph J Berry
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Michael D Irwin
- CubicPV Inc., 1807 Ross Avenue, Suite 333, Dallas, Texas 75201, United States
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12
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Experimental and theoretical investigation of crystal structure of formamidinium–copper–iodide single crystals grown from aqueous solution. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Thermodynamic Study of Formamidinium Lead Iodide (CH5N2PbI3) from 5 to 357 K. ENTROPY 2022; 24:e24020145. [PMID: 35205441 PMCID: PMC8871434 DOI: 10.3390/e24020145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/13/2022] [Accepted: 01/14/2022] [Indexed: 11/16/2022]
Abstract
In the present study, the molar heat capacity of solid formamidinium lead iodide (CH5N2PbI3) was measured over the temperature range from 5 to 357 K using a precise automated adiabatic calorimeter. In the above temperature interval, three distinct phase transitions were found in ranges from 49 to 56 K, from 110 to 178 K, and from 264 to 277 K. The standard thermodynamic functions of the studied perovskite, namely the heat capacity C°p(T), enthalpy [H0(T) − H0(0)], entropy S0(T), and [G°(T) − H°(0)]/T, were calculated for the temperature range from 0 to 345 K based on the experimental data. Herein, the results are discussed and compared with those available in the literature as measured by nonclassical methods.
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14
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Saito N, Matsushita Y, Ohsawa T, Segawa H, Ohashi N. Crystal structure of formamidinium–lead–chloride–dimethyl sulfoxide and phase relationship of related crystalline systems. CrystEngComm 2022. [DOI: 10.1039/d2ce00889k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We presented a new hybrid lead chloride–DMSO solvate, FAPbCl3–DMSO, and explained the crystallization of this solvate in DMSO by the formation enthalpy calculation.
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Affiliation(s)
- Noriko Saito
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yoshitaka Matsushita
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Takeo Ohsawa
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Hiroyo Segawa
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Naoki Ohashi
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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15
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Liu S, Wang J, Hu Z, Duan Z, Zhang H, Zhang W, Guo R, Xie F. Role of organic cation orientation in formamidine based perovskite materials. Sci Rep 2021; 11:20433. [PMID: 34650139 PMCID: PMC8517011 DOI: 10.1038/s41598-021-99621-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 09/27/2021] [Indexed: 11/16/2022] Open
Abstract
The rotation of organic cations is considered to be an important reason for the dynamic changes in stability and photoelectric properties of organic perovskites. However, the specific effect of organic cations rotation on formamidine based perovskite is still unknown. In our work, first-principles calculations based on density functional theory are used to examine the effect of the rotation of formamidine cations in FAPbI3 and FA0.875Cs0.125PbI3. We have comprehensively calculated the structure, electronic and optical properties of them. We found a coupling effect between formamidine cations rotation and cesium atom. This coupling effect changes the inclination angle of octahedron to regulate electron distribution, band gaps, and optical absorption. Hence, changing the cation orientation and substitution atom is a feasible way to dynamically adjust the energy band, dielectric constant and absorption edge of perovskite. Preparing perovskite with tunable properties is just around the corner through this way.
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Affiliation(s)
- Siyu Liu
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Jing Wang
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Zhe Hu
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Zhongtao Duan
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Hao Zhang
- Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Wanlu Zhang
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Ruiqian Guo
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China.
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
| | - Fengxian Xie
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China.
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
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16
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van de Goor TW, Liu Y, Feldmann S, Bourelle SA, Neumann T, Winkler T, Kelly ND, Liu C, Jones MA, Emge SP, Friend RH, Monserrat B, Deschler F, Dutton SE. Impact of Orientational Glass Formation and Local Strain on Photo-Induced Halide Segregation in Hybrid Metal-Halide Perovskites. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:15025-15034. [PMID: 34295448 PMCID: PMC8287560 DOI: 10.1021/acs.jpcc.1c03169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/15/2021] [Indexed: 05/27/2023]
Abstract
Band gap tuning of hybrid metal-halide perovskites by halide substitution holds promise for tailored light absorption in tandem solar cells and emission in light-emitting diodes. However, the impact of halide substitution on the crystal structure and the fundamental mechanism of photo-induced halide segregation remain open questions. Here, using a combination of temperature-dependent X-ray diffraction and calorimetry measurements, we report the emergence of a disorder- and frustration-driven orientational glass for a wide range of compositions in CH3NH3Pb(Cl x Br1-x )3. Using temperature-dependent photoluminescence measurements, we find a correlation between halide segregation under illumination and local strains from the orientational glass. We observe no glassy behavior in CsPb(Cl x Br1-x )3, highlighting the importance of the A-site cation for the structure and optoelectronic properties. Using first-principles calculations, we identify the local preferential alignment of the organic cations as the glass formation mechanism. Our findings rationalize the superior photostability of mixed-cation metal-halide perovskites and provide guidelines for further stabilization strategies.
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Affiliation(s)
- Tim W.
J. van de Goor
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Yun Liu
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Sascha Feldmann
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Sean A. Bourelle
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Timo Neumann
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
- Walter
Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | - Thomas Winkler
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
- Department
of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark
| | - Nicola D. Kelly
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Cheng Liu
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Michael A. Jones
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Steffen P. Emge
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Richard H. Friend
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Bartomeu Monserrat
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles
Babbage Road, Cambridge CB3 0FS, U.K.
| | - Felix Deschler
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
- Walter
Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | - Siân E. Dutton
- Cavendish
Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
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17
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Jedlicka E, Wang J, Mutch J, Jung YK, Went P, Mohammed J, Ziffer M, Giridharagopal R, Walsh A, Chu JH, Ginger DS. Bismuth Doping Alters Structural Phase Transitions in Methylammonium Lead Tribromide Single Crystals. J Phys Chem Lett 2021; 12:2749-2755. [PMID: 33705146 DOI: 10.1021/acs.jpclett.1c00334] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We study the effects of bismuth doping on the crystal structure and phase transitions in single crystals of the perovskite semiconductor methylammonium lead tribromide, MAPbBr3. By measuring the temperature-dependent specific heat capacity (Cp), we find that as the Bi doping increases, the phase transition assigned to the cubic to tetragonal phase boundary decreases in temperature. Furthermore, after doping we observe one phase transition between 135 and 155 K, in contrast to two transitions observed in the undoped single crystal. These results appear strikingly similar to previously reported effects of mechanical pressure on perovskite crystal structure. Using X-ray diffraction, we show that the lattice constant decreases as Bi is incorporated into the crystal, as predicted by density functional theory. We propose that bismuth substitutional doping on the lead site is dominant, resulting in BiPb+ centers that induce compressive chemical strain that alters the crystalline phase transitions.
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Affiliation(s)
- Erin Jedlicka
- Department of Chemistry, University of Washington, Seattle, Washington 98105, United States
| | - Jian Wang
- Department of Chemistry, University of Washington, Seattle, Washington 98105, United States
| | - Joshua Mutch
- Department of Physics, University of Washington, Seattle, Washington 98105, United States
| | - Young-Kwang Jung
- Department of Materials and Science Engineering, Yonsei University, Seoul 03722, Korea
| | - Preston Went
- Department of Physics, University of Washington, Seattle, Washington 98105, United States
| | - Joseph Mohammed
- Department of Chemistry, University of Washington, Seattle, Washington 98105, United States
| | - Mark Ziffer
- Department of Chemistry, University of Washington, Seattle, Washington 98105, United States
| | - Rajiv Giridharagopal
- Department of Chemistry, University of Washington, Seattle, Washington 98105, United States
| | - Aron Walsh
- Department of Materials and Science Engineering, Yonsei University, Seoul 03722, Korea
- Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom
| | - Jiun-Haw Chu
- Department of Physics, University of Washington, Seattle, Washington 98105, United States
| | - David S Ginger
- Department of Chemistry, University of Washington, Seattle, Washington 98105, United States
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18
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Wiedemann D, Breternitz J, Paley DW, Schorr S. Hybrid Perovskite at Full Tilt: Structure and Symmetry Relations of the Incommensurately Modulated Phase of Methylammonium Lead Bromide, MAPbBr 3. J Phys Chem Lett 2021; 12:2358-2362. [PMID: 33666079 DOI: 10.1021/acs.jpclett.0c03722] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As energy-conversion materials, organic-inorganic hybrid perovskites remain a research- and finance-intensive topic. However, even for the arguably most iconic representatives, methylammonium and formamidinium lead halides, the crystal structures of several polymorphs have remained undetermined. Herein, we describe the incommensurately modulated structure of MAPbBr3 in (3+1)D superspace, as deduced from single-crystal X-ray diffractometry despite systematic twinning. Affirming the published average space group, we determined the superspace group Imma(00γ)s00 with cell parameters of a = 8.4657(9), b = 11.7303(12), c = 8.2388(8) Å, and q = 0.2022(8)c*. Via group-subgroup and mode analyses using irreducible representations, we establish symmetry relationships to the well-known cubic and orthorhombic polymorphs and break down distortions into the average tilt system a-b0a- and modulated contributions to tilt and deformation of the PbBr6 coordination polyhedra. Not only does our model fill a long-standing gap in structural knowledge, but it may also serve as a starting point for elucidating other modulated structures within this substance class.
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Affiliation(s)
- Dennis Wiedemann
- Department Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - Joachim Breternitz
- Department Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - Daniel W Paley
- Columbia Nano Initiative, Columbia University, New York, New York 10027, United States
| | - Susan Schorr
- Department Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
- Institute of Geological Sciences, Freie Universität Berlin, 12249 Berlin, Germany
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19
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Arya S, Mahajan P, Gupta R, Srivastava R, Tailor NK, Satapathi S, Sumathi RR, Datt R, Gupta V. A comprehensive review on synthesis and applications of single crystal perovskite halides. PROG SOLID STATE CH 2020. [DOI: 10.1016/j.progsolidstchem.2020.100286] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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20
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Bukleski M, Dimitrovska-Lazova S, Makrievski V, Aleksovska S. A simple approach for determination of the phase transition temperature using infrared temperature-induced isosbestic points. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 231:118118. [PMID: 32023495 DOI: 10.1016/j.saa.2020.118118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/24/2020] [Accepted: 01/25/2020] [Indexed: 06/10/2023]
Abstract
The appearance and formation of an isosbestic point in the temperature-dependent IR spectra can be used to reveal a phase transition at a certain temperature. This conclusion was made by a thorough investigation of the IR (transmission and ATR) spectra of methylammonium iodide (MAI) and formamidinium iodide (FAI) recorded in a wide temperature range starting from -170 to +200 °C. By investigating the isosbestic points, it was found that MAI undergoes two phase transitions at -110 and +146 °C. The results obtained for FAI also showed two phase transitions at 73 and 115 °C. Furthermore, it was found that the shift of certain bands that are provoked by the phase change could be used to calculate the transition temperature. So far, according to the literature data, no attempts have been made to reveal the exact temperature of phase transitions using IR spectroscopic techniques.
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Affiliation(s)
- Miha Bukleski
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 5, 1000 Skopje, Macedonia.
| | - Sandra Dimitrovska-Lazova
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 5, 1000 Skopje, Macedonia
| | - Vasil Makrievski
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 5, 1000 Skopje, Macedonia
| | - Slobotka Aleksovska
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 5, 1000 Skopje, Macedonia
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