1
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Wen Y, Zhang T, Wang X, Liu T, Wang Y, Zhang R, Kan M, Wan L, Ning W, Wang Y, Yang D. Amorphous (lysine) 2PbI 2 layer enhanced perovskite photovoltaics. Nat Commun 2024; 15:7085. [PMID: 39154032 PMCID: PMC11330473 DOI: 10.1038/s41467-024-51551-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 08/12/2024] [Indexed: 08/19/2024] Open
Abstract
Passivation materials play a crucial role in a wide range of high-efficiency, high-stability photovoltaic applications based on crystalline silicon and state-of-the-art perovskite materials. Currently, for perovskite photovoltaic, the mainstream passivation strategies routinely rely on crystalline materials. Herein, we have invented a new amorphous (lysine)2PbI2 layer-enhanced halide perovskite. By utilizing a solid phase reaction between PbI2 and lysine molecule, an amorphous (lysine)2PbI2 layer is formed at surface/grain boundaries in the perovskite films. The amorphous (lysine)2PbI2 with fewer dangling bonds can effectively neutralize surface/interface defects, achieving an impressive efficiency of 26.27% (certified 25.94%). Moreover, this amorphous layer not only reduces crystal lattice stress but also functions as a barrier against the decomposition of organic components, leading to suppressed de-structuring of perovskite and highly stable perovskite solar cells.
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Affiliation(s)
- Yehui Wen
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, P. R. China
- Institute of Functional Nano & Soft Materials, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, P. R. China
| | - Tianchi Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, P. R. China
- Institute of Functional Nano & Soft Materials, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, P. R. China
| | - Xingtao Wang
- Huaneng Clean Energy Research Institute, Beijing, P. R. China
| | - Tiantian Liu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, P. R. China
| | - Yu Wang
- Department of Physics, Chemistry, and Biology (IFM), Linköping University, Linköping, Sweden
| | - Rui Zhang
- Department of Physics, Chemistry, and Biology (IFM), Linköping University, Linköping, Sweden
| | - Miao Kan
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
| | - Li Wan
- Max Planck Institute of Microstructure Physics, Halle, Germany
| | - Weihua Ning
- Institute of Functional Nano & Soft Materials, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, P. R. China.
| | - Yong Wang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, P. R. China.
| | - Deren Yang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, P. R. China.
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2
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Caussin L, Jouaiti A, Chartrand D, Skene WG, Ferlay S. Tuning the dimensionality in chiral and racemic organic/tin hybrids with halides. Dalton Trans 2024; 53:12755-12763. [PMID: 39021128 DOI: 10.1039/d4dt01645a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Chiral 1D tin iodides EBASnI3 were synthesized while incorporating enantiomerically pure and racemic ethylbenzylammonium (EBA) cations between the 1D shared inorganic corners. The dimensionality was reduced to 0D when replacing iodine with bromine. In all the cases, the presence of hydrogen bonds was observed between the organic part and the inorganic part, while transfer of chirality was evidenced for the EBASnI3 enantiomerically pure compounds.
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Affiliation(s)
- Louis Caussin
- CNRS, CMC UMR 7140, Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Cedex Strasbourg, France.
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués, Département de Chimie, Université de Montréal, CP 6128, succ. Centre-ville, Montréal, Québec, H3C 3J7, Canada
- Institut Courtois, Université de Montréal, Montréal, Québec, Canada
| | - Abdelaziz Jouaiti
- CNRS, CMC UMR 7140, Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Cedex Strasbourg, France.
| | - Daniel Chartrand
- Plateform de Rayons-X, Département de Chimie, Université de Montréal, CP 6128, succ. Centre-ville, Montréal, Québec, H3C 3J7, Canada
| | - W G Skene
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués, Département de Chimie, Université de Montréal, CP 6128, succ. Centre-ville, Montréal, Québec, H3C 3J7, Canada
- Institut Courtois, Université de Montréal, Montréal, Québec, Canada
| | - Sylvie Ferlay
- CNRS, CMC UMR 7140, Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Cedex Strasbourg, France.
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3
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Yan Z, Fan J, Pan S, Zhang M. Recent advances in rational structure design for nonlinear optical crystals: leveraging advantageous templates. Chem Soc Rev 2024; 53:6568-6599. [PMID: 38809128 DOI: 10.1039/d3cs01136d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Nonlinear optical (NLO) crystals that can expand the spectral range of laser outputs have attracted significant attention for their optoelectronic applications. The research progress from the discovery of new single crystal structures to the realization of final device applications involves many key steps and is very time consuming and challenging. Consequently, exploring efficient design strategies to shorten the research period and accelerate the rational design of novel NLO materials has become imperative to address the pressing demand for advanced materials. The recent shift in paradigm toward exploring new NLO crystals involves significant progress from extensive "trial and error" methodologies to strategic approaches. This review proposes the concept of rational structure design for nonlinear optical crystals leveraging advantageous templates. It further discusses their optical characteristics, promising applications as second-order NLO materials, and the relationship between their structure and performance, and highlights urgent issues that need to be addressed in the field of NLO crystals in the future. The review aims to provide ideas and driving impetus to encourage researchers to achieve new breakthroughs in the next generation of NLO materials.
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Affiliation(s)
- Ziting Yan
- Research Center for Crystal Materials, State Key Laboratory of Functional Materials and Devices for Special Environmental Conditions, Xinjiang Key Laboratory of Functional Crystal Materials, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 40-1 South Beijing Road, Urumqi 830011, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinbin Fan
- Research Center for Crystal Materials, State Key Laboratory of Functional Materials and Devices for Special Environmental Conditions, Xinjiang Key Laboratory of Functional Crystal Materials, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 40-1 South Beijing Road, Urumqi 830011, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shilie Pan
- Research Center for Crystal Materials, State Key Laboratory of Functional Materials and Devices for Special Environmental Conditions, Xinjiang Key Laboratory of Functional Crystal Materials, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 40-1 South Beijing Road, Urumqi 830011, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Zhang
- Research Center for Crystal Materials, State Key Laboratory of Functional Materials and Devices for Special Environmental Conditions, Xinjiang Key Laboratory of Functional Crystal Materials, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 40-1 South Beijing Road, Urumqi 830011, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Saski M, Sobczak S, Ratajczyk P, Terlecki M, Marynowski W, Borkenhagen A, Justyniak I, Katrusiak A, Lewiński J. Unprecedented Richness of Temperature- and Pressure-Induced Polymorphism in 1D Lead Iodide Perovskite. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403685. [PMID: 38813722 DOI: 10.1002/smll.202403685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Indexed: 05/31/2024]
Abstract
Inherent features of metal halide perovskites are their softness, complex lattice dynamics, and phase transitions spectacularly tuning their structures and properties. While the structural transformations are well described and classified in 3D perovskites, their 1D analogs are much less understood. Herein, both temperature- and pressure-dependent structural evolutions of a 1D AcaPbI3 perovskitoid incorporating acetamidinium (Aca) cation are examined. The study reveals the existence of nine phases of δ-AcaPbI3, which present the most diverse polymorphic collection among known perovskite materials. Interestingly, temperature- and pressure-triggered phase transitions in the 1D perovskotoid exhibit fundamentally different natures: the thermal transformations are mainly associated with the collective translations of rigid polyanionic units and ordering/disordering dynamics of Aca cations, while the compression primarily affects inorganic polymer chains. Moreover, in the 1-D chains featuring the face-sharing connection mode of the PbI6 octahedra the Pb···Pb distances are significantly shortened compared to the corner-sharing 3D perovskite frameworks, hence operating in the van der Waals territory. Strikingly, a good correlation is found between the Pb···Pb distances and the pressure evolution of the bandgap values in the δ-AcaPbI3, indicating that in 1D perovskitoid structures, the contacts between Pb2+ ions are one of the critical parameters determining their properties.
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Affiliation(s)
- Marcin Saski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
| | - Szymon Sobczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznań, 61-614, Poland
| | - Paulina Ratajczyk
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznań, 61-614, Poland
| | - Michał Terlecki
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw, 00-664, Poland
| | - Wojciech Marynowski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
| | - Aleksandra Borkenhagen
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
| | - Iwona Justyniak
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
| | - Andrzej Katrusiak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznań, 61-614, Poland
| | - Janusz Lewiński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw, 00-664, Poland
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5
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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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6
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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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7
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Rani C, Kumar R. Fano-type discrete-continuum interaction in perovskites and its manifestation in Raman spectral line shapes. Chem Commun (Camb) 2024; 60:2115-2124. [PMID: 38284275 DOI: 10.1039/d3cc05789e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Fano resonance is one of the most significant physical phenomena that correlates microscopic processes with macroscopic manifestations for experimental observations using different spectroscopic techniques. Owing to its importance, a focused study is required to clearly understand the origin of certain modifications in spectral behaviour, the nature of which is different for different materials. This means that a careful understanding of Fano interactions can enhance the understanding of several technologically important materials, including perovskites, which are also important in the area of energy storage and conversion. In semiconductors and nano materials (including 2-D materials), Fano interactions occur due to the intervalence or interconduction band transitions. However, in perovskites, Fano interactions are dominated by the interaction between polar phonons or excitons with electronic continuum. Raman spectroscopy, being a sensitive and non-destructive tool, detects subtle scale phenomena, such as Fano interactions, by analysing the Raman line shape. Herein, different dimensions associated with the identification and thereafter the origin of the Fano resonance in perovskites, which are used in energy related areas, have been highlighted using Raman scattering.
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Affiliation(s)
- Chanchal Rani
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan-48109, USA
| | - Rajesh Kumar
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India.
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8
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Kim AY, Na C, Lim AR. Crystal structures, phase transitions, thermodynamics, and molecular dynamics of organic-inorganic hybrid crystal [NH(CH 3) 3] 2ZnCl 4. Sci Rep 2024; 14:3441. [PMID: 38341522 PMCID: PMC10858887 DOI: 10.1038/s41598-024-53965-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/07/2024] [Indexed: 02/12/2024] Open
Abstract
Understanding the physical properties of organic-inorganic hybrid [NH(CH3)3]2ZnCl4 is necessary for its potential application in batteries and fuel cells due to its environmentally-friendly, and highly stable character. Here, we determine its overall properties in detail, such as its orthorhombic crystal structure, and phase transition temperatures associated with five different phases. Structural geometry was studied by the chemical shifts caused by the local field around 1H. No changes were observed for the environment around 1H for CH3, whereas the 1H chemical shifts around NH in the cation were shown due to the change in the hydrogen bond N‒H···Cl. This is related to the change in Cl around Zn in the anion. In addition, the coordination geometry of 14N and 1H around 13C exhibited increased symmetry at high temperatures. Finally, we were able to understand its molecular dynamics by the significant change with temperature observed from the spin-lattice relaxation time T1ρ values, which represent the energy transfer for the 1H and 13C atoms of the cation. The activation energies obtained from the T1ρ results were 3-4 times large at phase I (> 348 K) than at phase V and IV (< 286 K). The relaxations show that the energy barriers in phases IV and V are related to the reorientation of methyl groups around the triple symmetry axis, while the reorientation of methyl groups of the cation in phase I is related to as a whole.
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Affiliation(s)
- A Young Kim
- Graduate School of Carbon Convergence Engineering, Jeonju University, Jeonju, 55069, South Korea
| | - Changyub Na
- Graduate School of Carbon Convergence Engineering, Jeonju University, Jeonju, 55069, South Korea
| | - Ae Ran Lim
- Graduate School of Carbon Convergence Engineering, Jeonju University, Jeonju, 55069, South Korea.
- Department of Science Education, Jeonju University, Jeonju, 55069, South Korea.
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9
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Wang S, Wang F, Xu X, Zhang N, Zhang R, Lv L, Jiang X, Huang X, Wu S, Ding Y. Methylammonium-Based Quasi-Two-Dimensional Perovskite Single Crystals for Highly Sensitive X-ray Detection and Imaging. ACS APPLIED MATERIALS & INTERFACES 2023; 15:58566-58572. [PMID: 38063362 DOI: 10.1021/acsami.3c12866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
The strategy of introducing large organic cations into three-dimensional perovskites could reduce the dimensionality of perovskites to form quasi-two-dimensional (quasi-2D) perovskites, resulting in increased stability and reduced detection limits due to less ion migration. Herein, a quasi-2D perovskite single crystal (BDA)(MA)2Pb3Br10 (BDA = NH3C4H8NH3, MA = CH3NH3) with a layered structure was grown by the temperature-cooling solution method. The X-ray detector based on the (BDA)(MA)2Pb3Br10 single crystal has a sensitivity as high as 1984 μC Gy-1 cm-2 at 55.6 V/mm, and it could detect X-rays as low as 28.12 nGy s-1 at 22.2 V/mm. In addition, the X-ray imaging system based on the single-crystal device easily distinguishes between metals and plastics and exhibits a spatial resolution estimated as 250 μm, indicating the feasibility of (BDA)(MA)2Pb3Br10 crystals for X-ray imaging. This research offers a method for the design of quasi-2D layered perovskites and enhances photoelectronic applications in X-ray inspection and imaging.
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Affiliation(s)
- Shuaihua Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
| | - Fang Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, Fujian 350117, China
| | - Xieming Xu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nan Zhang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Zhang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, Fujian 350117, China
| | - Lingfei Lv
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoming Jiang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Xin Huang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Shaofan Wu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
| | - Yuchong Ding
- Research & Development Center of Material and Equipment, No. 26 Research Institute, China Electronics Technology Group Corporation, Chongqing 400060, China
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10
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Liang X, Klarbring J, Baldwin WJ, Li Z, Csányi G, Walsh A. Structural Dynamics Descriptors for Metal Halide Perovskites. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:19141-19151. [PMID: 37791100 PMCID: PMC10544022 DOI: 10.1021/acs.jpcc.3c03377] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/03/2023] [Indexed: 10/05/2023]
Abstract
Metal halide perovskites have shown extraordinary performance in solar energy conversion technologies. They have been classified as "soft semiconductors" due to their flexible corner-sharing octahedral networks and polymorphous nature. Understanding the local and average structures continues to be challenging for both modeling and experiments. Here, we report the quantitative analysis of structural dynamics in time and space from molecular dynamics simulations of perovskite crystals. The compact descriptors provided cover a wide variety of structural properties, including octahedral tilting and distortion, local lattice parameters, molecular orientations, as well as their spatial correlation. To validate our methods, we have trained a machine learning force field (MLFF) for methylammonium lead bromide (CH3NH3PbBr3) using an on-the-fly training approach with Gaussian process regression. The known stable phases are reproduced, and we find an additional symmetry-breaking effect in the cubic and tetragonal phases close to the phase-transition temperature. To test the implementation for large trajectories, we also apply it to 69,120 atom simulations for CsPbI3 based on an MLFF developed using the atomic cluster expansion formalism. The structural dynamics descriptors and Python toolkit are general to perovskites and readily transferable to more complex compositions.
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Affiliation(s)
- Xia Liang
- Department
of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Johan Klarbring
- Department
of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
- Department
of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden
| | - William J. Baldwin
- Department
of Engineering, University of Cambridge, Cambridge CB2 1PZ, U.K.
| | - Zhenzhu Li
- Department
of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Gábor Csányi
- Department
of Engineering, University of Cambridge, Cambridge CB2 1PZ, U.K.
| | - 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
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11
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Jaykhedkar N, Bystrický R, Sýkora M, Bučko T. How the Temperature and Composition Govern the Structure and Band Gap of Zr-Based Chalcogenide Perovskites: Insights from ML Accelerated AIMD. Inorg Chem 2023; 62:12480-12492. [PMID: 37495216 PMCID: PMC10410608 DOI: 10.1021/acs.inorgchem.3c01696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Indexed: 07/28/2023]
Abstract
The effects of temperature and composition on the structural and electronic properties of chalcogenide perovskite (CP) materials AZrX3 (A = Ba, Sr, Ca; X = S, Se) in the distorted perovskite (DP) phase are investigated using ab initio molecular dynamics (AIMD) accelerated by machine-learned force fields. Long-range van der Waals (vdW) interactions, incorporated into the Perdew-Burke-Ernzerhof (PBE) exchange-correlation functional using the DFT-D3 scheme, are found to be crucial for achieving correct predictions of structural parameters. Our calculations show that the distortion of the DP structure with respect to the parent cubic (C) phase, realized in the form of interoctahedral tilting, decreases with the increasing size of the A cations. The tendency for a gradual transformation of the DP-to-C phase with increasing temperature is shown to be strongly composition-dependent. The transformation temperature decreases with the size of cation A and increases with the size of anion X. Thus, within the range of the temperatures considered here (300-1200 K), a complete transformation is observed only for BaZrS3 (∼600 K) and BaZrSe3 (∼900 K). The computed band gap of CPs is shown to monotonically decrease with increasing temperature, and the magnitude of this decrease is found to be proportional to the extent of the thermally induced changes in the internal structure. Diverse factors affecting the magnitude of band gaps of CP materials are analyzed.
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Affiliation(s)
- Namrata Jaykhedkar
- Laboratory
of Advanced Materials, Comenius University, Ilkovičova 6, 841 04 Bratislava, Slovakia
| | - Roman Bystrický
- Laboratory
of Advanced Materials, Comenius University, Ilkovičova 6, 841 04 Bratislava, Slovakia
- Institute
of Inorganic Chemistry, Slovak Academy of
Sciences, Dúbravská
Cesta 9, 842 36 Bratislava, Slovakia
| | - Milan Sýkora
- Laboratory
of Advanced Materials, Comenius University, Ilkovičova 6, 841 04 Bratislava, Slovakia
| | - Tomáš Bučko
- Institute
of Inorganic Chemistry, Slovak Academy of
Sciences, Dúbravská
Cesta 9, 842 36 Bratislava, Slovakia
- Department
of Physical and Theoretical Chemistry, Comenius
University, Ilkovičova
6, 841 04 Bratislava, Slovakia
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12
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Ziegler JD, Cho Y, Terres S, Menahem M, Taniguchi T, Watanabe K, Yaffe O, Berkelbach TC, Chernikov A. Mobile Trions in Electrically Tunable 2D Hybrid Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210221. [PMID: 36811916 DOI: 10.1002/adma.202210221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/27/2023] [Indexed: 05/05/2023]
Abstract
2D hybrid perovskites are currently in the spotlight of material research for light-harvesting and -emitting applications. It remains extremely challenging, however, to externally control their optical response due to the difficulties of introducing electrical doping. Here, an approach of interfacing ultrathin sheets of perovskites with few-layer graphene and hexagonal boron nitride into gate-tunable, hybrid heterostructures, is demonstrated. It allows for bipolar, continuous tuning of light emission and absorption in 2D perovskites by electrically injecting carriers to densities as high as 1012 cm-2 . This reveals the emergence of both negatively and positively charged excitons, or trions, with binding energies up to 46 meV, among the highest measured for 2D systems. Trions are shown to dominate light emission and propagate with mobilities reaching 200 cm2 V-1 s-1 at elevated temperatures. The findings introduce the physics of interacting mixtures of optical and electrical excitations to the broad family of 2D inorganic-organic nanostructures. The presented strategy to electrically control the optical response of 2D perovskites highlights it as a promising material platform toward electrically modulated light-emitters, externally guided charged exciton currents, and exciton transistors based on layered, hybrid semiconductors.
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Affiliation(s)
- Jonas D Ziegler
- Institute of Applied Physics and Würzburg-Dresden Cluster of Excellence ct.qmat, TU Dresden, 01062, Dresden, Germany
| | - Yeongsu Cho
- Department of Chemistry, Columbia University, New York, New York, 10027, USA
| | - Sophia Terres
- Institute of Applied Physics and Würzburg-Dresden Cluster of Excellence ct.qmat, TU Dresden, 01062, Dresden, Germany
| | - Matan Menahem
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Takashi Taniguchi
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, 305-0047, Japan
| | - Kenji Watanabe
- Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, 305-0047, Japan
| | - Omer Yaffe
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Timothy C Berkelbach
- Center for Computational Quantum Physics, Flatiron Institute, New York, 10010, USA
- Department of Chemistry, Columbia University, New York, 10027, USA
| | - Alexey Chernikov
- Institute of Applied Physics and Würzburg-Dresden Cluster of Excellence ct.qmat, TU Dresden, 01062, Dresden, Germany
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13
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McArthur J, Filip MR, Qiu DY. Minimal Molecular Building Blocks for Screening in Quasi-Two-Dimensional Organic-Inorganic Lead Halide Perovskites. NANO LETTERS 2023; 23:3796-3802. [PMID: 37092908 DOI: 10.1021/acs.nanolett.3c00082] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Layered hybrid organic-inorganic lead halide perovskites have intriguing optoelectronic properties, but some of the most interesting perovskite systems, such as defective, disordered, or mixed perovskites, require multiple unit cells to describe and are not accessible within state-of-the-art ab initio theoretical approaches for computing excited states. The principal bottleneck is the calculation of the dielectric matrix, which scales formally as O(N4). We develop here a fully ab initio approximation for the dielectric matrix, known as IPSA-2C, in which we separate the polarizability of the organic/inorganic layers into minimal building blocks, thus circumventing the undesirable power-law scaling. The IPSA-2C method reproduces the quasi-particle band structures and absorption spectra for a series of Ruddlesden-Popper perovskites to high accuracy, by including critical nonlocal effects neglected in simpler models, and sheds light on the complicated interplay of screening between the organic and inorganic sublattices.
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Affiliation(s)
- Jack McArthur
- Department of Physics, Yale University, New Haven, Connecticut 06520, United States
- Department of Physics, University of California at Berkeley, Berkeley, California 94720, United States
| | - Marina R Filip
- Department of Physics, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - Diana Y Qiu
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06520, United States
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14
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Wang ZJ, Wu LK, Wang N, Hu QQ, Li JR, Ye HY. Tuning the luminescent properties of a three-dimensional perovskite ferroelectric (Me-Hdabco)CsI 3via Sn(II) doping. Dalton Trans 2023; 52:2799-2803. [PMID: 36752146 DOI: 10.1039/d2dt03939g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
As promising functional materials, organic-inorganic hybrid metal halide perovskites have attracted significant interest because of their excellent photovoltaic performance. However, although considerable efforts have been made, three-dimensional (3D) metal halide perovskites beyond lead halides have been rarely reported. Herein, a new 3D organic-inorganic hybrid ferroelectric material (Me-Hdabco)CsI3 (1, Me-Hdabco = N-methyl-1,4-diazoniabicyclo[2.2.2]octane) was synthesized and characterized. 1 underwent a ferroelectric to paraelectric phase transition at Tc = 441 K, which was investigated by differential scanning calorimetry (DSC), dielectric measurements, and variable temperature structural analyses. Moreover, 1 shows a clear ferroelectric domain switching recorded by piezoelectric force microscopy. More interestingly, the pristine colorless crystal of 1 has no photoluminescence properties, while 10% Sn(II):(Me-Hdabco)CsI3 shows intense photoluminescence with a quantum yield of 8.90% under UV excitation. This finding will open up a new avenue to probe organic-inorganic hybrid multifunctional materials integrated ferroelectric and photoluminescence.
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Affiliation(s)
- Ze-Jie Wang
- Chaotic Matter Science Research Center, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, P. R. China.
| | - Ling-Kun Wu
- Chaotic Matter Science Research Center, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, P. R. China.
| | - Na Wang
- Chaotic Matter Science Research Center, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, P. R. China.
| | - Qian-Qian Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P.R. China
| | - Jian-Rong Li
- Chaotic Matter Science Research Center, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, P. R. China. .,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P.R. China
| | - Heng-Yun Ye
- Chaotic Matter Science Research Center, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, P. R. China.
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15
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Fykouras K, Lahnsteiner J, Leupold N, Tinnemans P, Moos R, Panzer F, de Wijs GA, Bokdam M, Grüninger H, Kentgens APM. Disorder to order: how halide mixing in MAPbI 3-xBr x perovskites restricts MA dynamics. JOURNAL OF MATERIALS CHEMISTRY. A 2023; 11:4587-4597. [PMID: 37383090 PMCID: PMC10294545 DOI: 10.1039/d2ta09069d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/01/2023] [Indexed: 06/30/2023]
Abstract
Mixed-halide lead perovskites are of particular interest for the design of tandem solar cells currently reaching record efficiencies. While halide phase segregation upon illumination of mixed perovskites is extensively studied, the effect of halide disorder on A cation dynamics is not well understood, despite its importance for charge carrier diffusion and lifetime. Here, we study the methylammonium (MA) reorientational dynamics in mixed halide MAPbI3-xBrx perovskites by a combined approach of experimental solid-state NMR spectroscopy and molecular dynamics (MD) simulations based on machine-learning force-fields (MLFF). 207Pb NMR spectra indicate the halides are randomly distributed over their lattice positions, whereas PXRD measurements show that all mixed MAPbI3-xBrx samples are cubic. The experimental 14N spectra and 1H double-quantum (DQ) NMR data reveal anisotropic MA reorientations depending on the halide composition and thus associated disorder in the inorganic sublattice. MD calculations allow us to correlate these experimental results to restrictions of MA dynamics due to preferred MA orientations in their local Pb8I12-nBrn "cages". Based on the experimental and simulated results, we develop a phenomenological model that correlates the 1H dipolar coupling and thus the MA dynamics with the local composition and reproduces the experimental data over the whole composition range. We show that the dominant interaction between the MA cations and the Pb-X lattice that influences the cation dynamics is the local electrostatic potential being inhomogeneous in mixed halide systems. As such, we generate a fundamental understanding of the predominant interaction between the MA cations and the inorganic sublattice, as well as MA dynamics in asymmetric halide coordinations.
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Affiliation(s)
- Kostas Fykouras
- Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente P.O. Box 217 7500 AE Enschede Netherlands
| | - Jonathan Lahnsteiner
- Department of Functional Materials, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Nico Leupold
- Department of Functional Materials, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Paul Tinnemans
- Radboud University, Institute for Molecules and Materials Heyendaalseweg 135 6525 AJ Nijmegen Netherlands
| | - Ralf Moos
- Department of Functional Materials, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Fabian Panzer
- Soft Matter Optoelectronics, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Gilles A de Wijs
- Radboud University, Institute for Molecules and Materials Heyendaalseweg 135 6525 AJ Nijmegen Netherlands
| | - Menno Bokdam
- Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente P.O. Box 217 7500 AE Enschede Netherlands
| | - Helen Grüninger
- Radboud University, Institute for Molecules and Materials Heyendaalseweg 135 6525 AJ Nijmegen Netherlands
- Inorganic Chemistry III and Northern Bavarian NMR Centre, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Arno P M Kentgens
- Radboud University, Institute for Molecules and Materials Heyendaalseweg 135 6525 AJ Nijmegen Netherlands
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16
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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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17
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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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18
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Erbing A, Philippe B, Park BW, Cappel UB, Rensmo H, Odelius M. Spatial microheterogeneity in the valence band of mixed halide hybrid perovskite materials. Chem Sci 2022; 13:9285-9294. [PMID: 36093010 PMCID: PMC9384462 DOI: 10.1039/d2sc03440a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/18/2022] [Indexed: 11/23/2022] Open
Abstract
The valence band of lead halide hybrid perovskites with a mixed I/Br composition is investigated using electronic structure calculations and complementarily probed with hard X-ray photoelectron spectroscopy. In the latter, we used high photon energies giving element sensitivity to the heavy lead and halide ions and we observe distinct trends in the valence band as a function of the I : Br ratio. Through electronic structure calculations, we show that the spectral trends with overall composition can be understood in terms of variations in the local environment of neighboring halide ions. From the computational model supported by the experimental evidence, a picture of the microheterogeneity in the valence band maximum emerges. The microheterogeneity in the valence band suggests that additional charge transport mechanisms might be active in lead mixed halide hybrid perovskites, which could be described in terms of percolation pathways.
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Affiliation(s)
- Axel Erbing
- Department of Physics, Stockholm University, AlbaNova University Center SE-106 91 Stockholm Sweden +46 8 5537 8601 +46 8 5537 8713
| | - Bertrand Philippe
- Department of Physics and Astronomy, Uppsala University Box 516 SE-751 20 Uppsala Sweden
| | - Byung-Wook Park
- Department of Physics and Astronomy, Uppsala University Box 516 SE-751 20 Uppsala Sweden
- Department of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology 50 UNIST-gil, Eonyang-eup, Ulju-gun Ulsan 44919 Korea
| | - Ute B Cappel
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Håkan Rensmo
- Department of Physics and Astronomy, Uppsala University Box 516 SE-751 20 Uppsala Sweden
| | - Michael Odelius
- Department of Physics, Stockholm University, AlbaNova University Center SE-106 91 Stockholm Sweden +46 8 5537 8601 +46 8 5537 8713
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19
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Tang Y, Mak CH, Wang C, Fu Y, Li FF, Jia G, Hsieh CW, Shen HH, Colmenares JC, Song H, Yuan M, Chen Y, Hsu HY. Bandgap Funneling in Bismuth-Based Hybrid Perovskite Photocatalyst with Efficient Visible-Light-Driven Hydrogen Evolution. SMALL METHODS 2022; 6:e2200326. [PMID: 35733072 DOI: 10.1002/smtd.202200326] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/18/2022] [Indexed: 06/15/2023]
Abstract
The photocatalytic system using hydrohalic acid (HX) for hydrogen production is a promising strategy to generate clean and renewable fuels as well as value-added chemicals (such as X2 /X3 - ). However, it is still challenging to develop a visible-light active and strong-acid resistive photocatalyst. Hybrid perovskites have been recognized as a potential photocatalyst for photovoltaic HX splitting. Herein, a novel environmentally friendly mixed halide perovskite MA3 Bi2 Cl9-x Ix with a bandgap funnel structure is developed, i.e., confirmed by energy dispersive X-ray analysis and density functional theory calculations. Due to gradient neutral formation energy within iodine-doped MA3 Bi2 Cl9 , the concentration of iodide element decreases from the surface to the interior across the MA3 Bi2 Cl9-x Ix perovskite. Because of the aligned energy levels of iodide/chloride-mixed MA3 Bi2 Cl9-x Ix , a graded bandgap funnel structure is therefore formed, leading to the promotion of photoinduced charge transfer from the interior to the surface for efficient photocatalytic redox reaction. As a result, the hydrogen generation rate of the optimized MA3 Bi2 Cl9-x Ix is enhanced up to ≈341 ± 61.7 µmol h-1 with a Pt co-catalyst under visible light irradiation.
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Affiliation(s)
- Yunqi Tang
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Chun Hong Mak
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Chen Wang
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, 999077, China
| | - Yu Fu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, 999077, China
| | - Fang-Fang Li
- Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Guohua Jia
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University GPO Box U1987, Perth, WA, 6845, Australia
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung City, 402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung City, 404, Taiwan
| | - Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Juan Carlos Colmenares
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224, Warsaw, Poland
| | - Haisheng Song
- Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, 430074, P. R. China
| | - Mingjian Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yue Chen
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, 999077, China
| | - Hsien-Yi Hsu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
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20
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Alkhalifah G, Marshall AD, Rudayni F, Wanigasekara S, Wu JZ, Chan WL. Defect-Polaron and Enormous Light-Induced Fermi-Level Shift at Halide Perovskite Surface. J Phys Chem Lett 2022; 13:6711-6720. [PMID: 35849072 DOI: 10.1021/acs.jpclett.2c01940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Halide perovskites intrinsically contain a large amount of point defects. The interaction of these defects with photocarriers, photons, and lattice distortion remains a complex and unresolved issue. We found that for halide perovskite films with excess halide vacancies, the Fermi level can be shifted by as much as 0.7 eV upon light illumination. These defects can trap photocarriers for hours after the light illumination is turned off. The enormous light-induced Fermi level shift and the prolonged electron trapping are explained by the capturing of photocarriers by halide vacancies at the surface of the perovskite film. The formation of this defect-photocarrier complex can result in lattice deformation and an energy shift in the defect state. The whole process is akin to polaron formation at a defect site. Our data also suggest that these trapped carriers increase the electrical polarizability of the lattice, presumably by enhancing the defect migration rate.
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Affiliation(s)
- Ghadah Alkhalifah
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, United States
- Department of Physics, College of Science, King Faisal University (KFU), Al-Ahsa 31982, Saudi Arabia
| | - Angelo D Marshall
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, United States
| | - Fatimah Rudayni
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, United States
- Department of Physics, Jazan University, Jazan 45142, Saudi Arabia
| | - Shanika Wanigasekara
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, United States
| | - Judy Z Wu
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, United States
| | - Wai-Lun Chan
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, United States
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21
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Abiram G, Thanihaichelvan M, Ravirajan P, Velauthapillai D. Review on Perovskite Semiconductor Field-Effect Transistors and Their Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2396. [PMID: 35889621 PMCID: PMC9322712 DOI: 10.3390/nano12142396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/29/2022] [Accepted: 07/02/2022] [Indexed: 12/10/2022]
Abstract
Perovskite materials are considered as the most alluring successor to the conventional semiconductor materials to fabricate solar cells, light emitting diodes and electronic displays. However, the use of the perovskite semiconductors as a channel material in field effect transistors (FET) are much lower than expected due to the poor performance of the devices. Despite low attention, the perovskite FETs are used in widespread applications on account of their unique opto-electrical properties. This review focuses on the previous works on perovskite FETs which are summarized into tables based on their structures and electrical properties. Further, this review focuses on the applications of perovskite FETs in photodetectors, phototransistors, light emitting FETs and memory devices. Moreover, this review highlights the challenges faced by the perovskite FETs to meet the current standards along with the future directions of these FETs. Overall, the review summarizes all the available information on existing perovskite FET works and their applications reported so far.
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Affiliation(s)
- Gnanasampanthan Abiram
- Department of Physics, University of Jaffna, Jaffna 40 000, Sri Lanka; (G.A.); (P.R.)
- Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, Inndalsveien 28, 5063 Bergen, Norway
| | | | | | - Dhayalan Velauthapillai
- Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, Inndalsveien 28, 5063 Bergen, Norway
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22
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Ning J, Zheng L, Lei W, Wang S, Xi J, Yang J. Temperature-dependence of the band gap in the all-inorganic perovskite CsPbI 3 from room to high temperatures. Phys Chem Chem Phys 2022; 24:16003-16010. [PMID: 35730744 DOI: 10.1039/d2cp00940d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding the micro-mechanism of the temperature dependence of the band gap in all-inorganic perovskites is of great significance for their optoelectronic and photovoltaic applications in various temperature environments. Herein, based on the recently developed electron-phonon renormalization method, the temperature-dependent band gaps of the optoelectronic perovskite CsPbI3 are studied from 300 K to 750 K (including orthorhombic, tetragonal, and cubic phases). It is found that the temperature-induced structural fluctuation makes the structure of perovskites deviate from the 0 K one, and the corresponding renormalized band gap differs from that at 0 K, especially for the high-temperature cubic phase (e.g., ΔEg is ∼177 meV at 600 K). However, within the temperature range of each CsPbI3 phase, the band gap Eg is enlarged slightly with the increase of temperature (e.g., ΔEg is ∼26 meV from 600 K to 750 K for the cubic phase), showing the insensitivity of the structural fluctuation effect to the temperature change. The reason is that the chemical characters of band edges are determined by PbI3-, and due to the strong correlation between Pb and I, the Pb-I bond lengths and Pb-I-Pb bond angles are almost unchanged as the temperature increases. Our work provides a fundamental understanding of the temperature-dependent band gaps in all-inorganic perovskites and shed light on the commercialization of perovskites.
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Affiliation(s)
- Jinyan Ning
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Liangliang Zheng
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Wenxin Lei
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Shenghao Wang
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Jinyang Xi
- Materials Genome Institute, Shanghai University, Shanghai 200444, China. .,Zhejiang Laboratory, Hangzhou, Zhejiang 311100, China
| | - Jiong Yang
- Materials Genome Institute, Shanghai University, Shanghai 200444, China. .,Zhejiang Laboratory, Hangzhou, Zhejiang 311100, China
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23
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Gavranovic S, Pospisil J, Zmeskal O, Novak V, Vanysek P, Castkova K, Cihlar J, Weiter M. Electrode Spacing as a Determinant of the Output Performance of Planar-Type Photodetectors Based on Methylammonium Lead Bromide Perovskite Single Crystals. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20159-20167. [PMID: 35438956 DOI: 10.1021/acsami.1c24362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Methylammonium lead bromide is a very perspective hybrid semiconductor material, suitable for high-sensitive, filter-free photodetection of electromagnetic radiation. Herein, we studied the effect of electrode spacing on the output performance and stability of planar-type photodetectors based on high-quality MAPbBr3 single crystals. Such crystals, as large as 4.5×4.5×1.2 mm3 were synthesized via the inverse temperature crystallization method and were further used for the fabrication of planar Au/MAPbBr3/Au photodetectors with variable electrode spacing (in the range between 125 and 25 μm). We report that the electrode spacing has a profound impact on photocurrent densities and key detector parameters (responsivity R, external quantum efficiency EQE, and specific detectivity D*). In the studied fivefold electrode spacing, the photocurrent density increased over 4 times, with decreasing active area of the devices. This effect is attributed to intrinsic photocurrent amplification. Based on the transient photocurrent measurements and calculated key parameters, we determined the device sample with the best output performance. The champion sample with an electrode spacing of 50 μm exhibited great detection ability, especially for a low light intensity of 200 nWcm-2, for which we calculated the R of 19.55 A W-1, EQE of 4253%, and D* of 3.42 × 1012 Jones (cm Hz1/2 W-1). Moreover, the functional stability of this device showed a minimal reduction of photodetection ability after 2000 cycles, which makes it very promising for the next generation of optoelectronic devices.
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Affiliation(s)
- Stevan Gavranovic
- Faculty of Chemistry, Materials Research Centre, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Jan Pospisil
- Faculty of Chemistry, Materials Research Centre, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Oldrich Zmeskal
- Faculty of Chemistry, Materials Research Centre, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Vitezslav Novak
- Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, 616 00 Brno, Czech Republic
| | - Petr Vanysek
- Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, 616 00 Brno, Czech Republic
| | - Klara Castkova
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00 Brno, Czech Republic
| | - Jaroslav Cihlar
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00 Brno, Czech Republic
| | - Martin Weiter
- Faculty of Chemistry, Materials Research Centre, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
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24
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Syntheses, crystal structures, antibacterial activities and non-linear optical properties based on DFT calculation of two substituted benzyl piperidinium salts tetrahalogenated copper(II). J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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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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26
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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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27
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Terban MW, Billinge SJL. Structural Analysis of Molecular Materials Using the Pair Distribution Function. Chem Rev 2022; 122:1208-1272. [PMID: 34788012 PMCID: PMC8759070 DOI: 10.1021/acs.chemrev.1c00237] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Indexed: 12/16/2022]
Abstract
This is a review of atomic pair distribution function (PDF) analysis as applied to the study of molecular materials. The PDF method is a powerful approach to study short- and intermediate-range order in materials on the nanoscale. It may be obtained from total scattering measurements using X-rays, neutrons, or electrons, and it provides structural details when defects, disorder, or structural ambiguities obscure their elucidation directly in reciprocal space. While its uses in the study of inorganic crystals, glasses, and nanomaterials have been recently highlighted, significant progress has also been made in its application to molecular materials such as carbons, pharmaceuticals, polymers, liquids, coordination compounds, composites, and more. Here, an overview of applications toward a wide variety of molecular compounds (organic and inorganic) and systems with molecular components is presented. We then present pedagogical descriptions and tips for further implementation. Successful utilization of the method requires an interdisciplinary consolidation of material preparation, high quality scattering experimentation, data processing, model formulation, and attentive scrutiny of the results. It is hoped that this article will provide a useful reference to practitioners for PDF applications in a wide realm of molecular sciences, and help new practitioners to get started with this technique.
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Affiliation(s)
- Maxwell W. Terban
- Max
Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - Simon J. L. Billinge
- Department
of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
- Condensed
Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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28
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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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29
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Xi J, Zheng L, Wang S, Yang J, Zhang W. Temperature-dependent structural fluctuation and its effect on the electronic structure and charge transport in hybrid perovskite CH 3 NH 3 PbI 3. J Comput Chem 2021; 42:2213-2220. [PMID: 34486140 DOI: 10.1002/jcc.26750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/11/2021] [Accepted: 08/22/2021] [Indexed: 11/10/2022]
Abstract
The recently discovered hybrid organic-inorganic perovskites have been suggested for high-performance optoelectronic applications. Owing to the mechanical flexibility of these compounds, they demonstrate structural fluctuation at finite temperatures that have been widely discussed with respect to their optical properties. However, the effect of temperature-induced structural fluctuation is not clear until now, with respect to the equally important charge transport properties. In the present study, through ab initio molecular dynamics simulations of cubic-phase CH3 NH3 PbI3 at different temperatures, the temperature-dependent electronic structure and charge carrier transport properties are examined. Compared with the significant structural fluctuation of organic cations, the structural change of the inorganic framework is minor. In addition, because the band edge states at R point are mainly influenced by the anti-bonding character of the Pb-I bond, CH3 NH3 PbI3 demonstrates relatively small deformation potentials as well as low temperature dependence of band gaps (ΔEg ≈ 50 meV from 330 K to 400 K) and electron-phonon coupling strengths, despite the large structural fluctuation of organic cations. Furthermore, the effective mass of the valence band increases with the increase of temperature. The predicted mobilities of CH3 NH3 PbI3 can reach above 75 cm2 V-1 s-1 near room temperature, exhibiting an appropriate optoelectronic potential, while the temperature dependence is steeper than T-1.5 of the traditional semiconductors because of the enhanced effective masses.
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Affiliation(s)
- Jinyang Xi
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Liangliang Zheng
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Shenghao Wang
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Jiong Yang
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Wenqing Zhang
- Department of Physics and Shenzhen Institute for Quantum Science & Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China.,Guangdong Provincial Key Laboratory of Computational Science and Material Design, and Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, China
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30
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Influence of Different Rotations of Organic Formamidinium Molecule on Electronic and Optical Properties of FAPbBr3 Perovskite. COATINGS 2021. [DOI: 10.3390/coatings11111341] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Hybrid organic–inorganic halide perovskites (HOIPs) have recently represented a material breakthrough for optoelectronic applications. Obviously, studying the interactions between the central organic cation and the Pb-X inorganic octahedral could provide a better understanding of HOIPs. In this work, we used a first-principles theoretical study to investigate the effect of different orientations of central formamidinium cation (FA+) on the electronic and optical properties of FAPbBr3 hybrid perovskite. In order to do this, the band structure (with and without spin–orbit coupling (SOC)), density of states (DOS), partial density of states (PDOS), electron density, distortion index, bond angle variance, dielectric function, and absorption spectra were computed. The findings revealed that a change in the orientation of FA+ caused some disorders in the distribution of interactions, resulting in the formation of some specific energy levels in the structure. The interactions between the inorganic and organic parts in different directions create a distortion index in the bonds of the inorganic octahedral, thus leading to a change in the volume of PbBr6. This is the main reason for the variations observed in the electronic and optical properties of FAPbBr3. The obtained results can be helpful in solar-cell applications.
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31
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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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32
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Zhang Y, Li M, Xu G. An In(III)‐Based Organic‐Inorganic Hybrid Compound (C
3
H
7
NH
3
)
3
[InCl
5
(H
2
O)]Cl with Dielectric Response Behavior Derived from Order‐Disorder Changes of
n
‐Propylammonium Cations. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yin‐Qiang Zhang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources Key Laboratory of Advanced Functional Materials, Autonomous Region Institute of Applied Chemistry, College of Chemistry Xinjiang University Urumqi 830046 Xinjiang PR China
| | - Min Li
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources Key Laboratory of Advanced Functional Materials, Autonomous Region Institute of Applied Chemistry, College of Chemistry Xinjiang University Urumqi 830046 Xinjiang PR China
| | - Guan‐Cheng Xu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources Key Laboratory of Advanced Functional Materials, Autonomous Region Institute of Applied Chemistry, College of Chemistry Xinjiang University Urumqi 830046 Xinjiang PR China
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33
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Shaw BK, Hughes AR, Ducamp M, Moss S, Debnath A, Sapnik AF, Thorne MF, McHugh LN, Pugliese A, Keeble DS, Chater P, Bermudez-Garcia JM, Moya X, Saha SK, Keen DA, Coudert FX, Blanc F, Bennett TD. Melting of hybrid organic-inorganic perovskites. Nat Chem 2021; 13:778-785. [PMID: 33972755 DOI: 10.1038/s41557-021-00681-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 03/11/2021] [Indexed: 02/03/2023]
Abstract
Several organic-inorganic hybrid materials from the metal-organic framework (MOF) family have been shown to form stable liquids at high temperatures. Quenching then results in the formation of melt-quenched MOF glasses that retain the three-dimensional coordination bonding of the crystalline phase. These hybrid glasses have intriguing properties and could find practical applications, yet the melt-quench phenomenon has so far remained limited to a few MOF structures. Here we turn to hybrid organic-inorganic perovskites-which occupy a prominent position within materials chemistry owing to their functional properties such as ion transport, photoconductivity, ferroelectricity and multiferroicity-and show that a series of dicyanamide-based hybrid organic-inorganic perovskites undergo melting. Our combined experimental-computational approach demonstrates that, on quenching, they form glasses that largely retain their solid-state inorganic-organic connectivity. The resulting materials show very low thermal conductivities (~0.2 W m-1 K-1), moderate electrical conductivities (10-3-10-5 S m-1) and polymer-like thermomechanical properties.
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Affiliation(s)
- Bikash Kumar Shaw
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Ashlea R Hughes
- Department of Chemistry, University of Liverpool, Liverpool, UK
| | - Maxime Ducamp
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, France
| | - Stephen Moss
- Department of Chemistry, University of Liverpool, Liverpool, UK
| | - Anup Debnath
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, India
| | - Adam F Sapnik
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Michael F Thorne
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Lauren N McHugh
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Andrea Pugliese
- Department of Chemistry, University of Liverpool, Liverpool, UK
| | - Dean S Keeble
- Diamond Light Source Ltd, Diamond House, Harwell Campus, Didcot, UK
| | - Philip Chater
- Diamond Light Source Ltd, Diamond House, Harwell Campus, Didcot, UK
| | - Juan M Bermudez-Garcia
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.,University of A Coruna, QuiMolMat Group, Department of Chemistry, Faculty of Science and Advanced Scientific Research Center (CICA), Zapateira, Spain
| | - Xavier Moya
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Shyamal K Saha
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, India
| | - David A Keen
- ISIS Facility, Rutherford Appleton Laboratory, Harwell Campus, Didcot, UK
| | - François-Xavier Coudert
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, France
| | - Frédéric Blanc
- Department of Chemistry, University of Liverpool, Liverpool, UK.,Stephenson Institute for Renewable Energy, University of Liverpool, Liverpool, UK
| | - Thomas D Bennett
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.
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34
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Tetragonal-Cubic Phase Transition and Low-Field Dielectric Properties of CH 3NH 3PbI 3 Crystals. MATERIALS 2021; 14:ma14154215. [PMID: 34361408 PMCID: PMC8348982 DOI: 10.3390/ma14154215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/19/2021] [Accepted: 07/23/2021] [Indexed: 01/06/2023]
Abstract
The frequency and temperature dependence of dielectric properties of CH3NH3PbI3 (MAPI) crystals have been studied and analyzed in connection with temperature-dependent structural studies. The obtained results bring arguments for the existence of ferroelectricity and aim to complete the current knowledge on the thermally activated conduction mechanisms, in dark equilibrium and in the presence of a small external a.c. electric field. The study correlates the frequency-dispersive dielectric spectra with the conduction mechanisms and their relaxation processes, as well as with the different transport regimes indicated by the Nyquist plots. The different energy barriers revealed by the impedance spectroscopy highlight the dominant transport mechanisms in different frequency and temperature ranges, being associated with the bulk of the grains, their boundaries, and/or the electrodes' interfaces.
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35
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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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36
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Sui Li L, Juan Wei W, Qiang Gao H, Hui Tan Y, Bo Han X. Molecular Disorder Induces an Unusual Phase Transition in a Potential 2D Chiral Ferroelectric Perovskite. Chemistry 2021; 27:9054-9059. [PMID: 33847021 DOI: 10.1002/chem.202100334] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Indexed: 11/05/2022]
Abstract
Two-dimensional hybrid halide perovskites with single chiral and ferroelectricity together with various structural phase transitions provide the possibility for more diverse functional properties. Here, we present a 2D chiral hybrid halide perovskite ferroelectric, [C6 H5 (CH2 )4 NH3 ]2 CdCl4 (4PBA-CdCl4 , 4PBA=4-phenylbutylamine) that experiences two continuous phase transitions from centrosymmetric triclinic P 1 ‾ to polar chiral monoclinic P2 and then to another centrosymmetric tetragonal P4/mmm with increasing temperature, accompanied by symmetry breaking, due to the prominent octahedral distortion and disorder transformation of organic 4PBA cations. In the polar chiral phase, 4PBA-CdCl4 gives a significant CD signal and has a moderate ferroelectric polarization of 0.35 μC/cm2 . In addition, 4PBA-CdCl4 occupies a wide band gap of 4.376 eV that is chiefly contributed by the inorganic CdCl6 octahedron. This finding offers an alternative pathway for designing new phase transitions and related physical properties in hybrid halide perovskites and other hybrid crystals.
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Affiliation(s)
- Lin Sui Li
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Wen Juan Wei
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Hong Qiang Gao
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yu Hui Tan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Xiao Bo Han
- Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan, 430205, P. R. China
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37
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[(CH3)3N(CH2)2Br]2[CoBr4] halogenometallate complex: crystal structure, high-temperature reversible phase transition, electrical and optical properties. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129684] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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38
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Wilks RG, Erbing A, Sadoughi G, Starr DE, Handick E, Meyer F, Benkert A, Iannuzzi M, Hauschild D, Yang W, Blum M, Weinhardt L, Heske C, Snaith HJ, Odelius M, Bär M. Dynamic Effects and Hydrogen Bonding in Mixed-Halide Perovskite Solar Cell Absorbers. J Phys Chem Lett 2021; 12:3885-3890. [PMID: 33856793 DOI: 10.1021/acs.jpclett.1c00745] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The organic component (methylammonium) of CH3NH3PbI3-xClx-based perovskites shows electronic hybridization with the inorganic framework via H-bonding between N and I sites. Femtosecond dynamics induced by core excitation are shown to strongly influence the measured X-ray emission spectra and the resonant inelastic soft X-ray scattering of the organic components. The N K core excitation leads to a greatly increased N-H bond length that modifies and strengthens the interaction with the inorganic framework compared to that in the ground state. The study indicates that excited-state dynamics must be accounted for in spectroscopic studies of this perovskite solar cell material, and the organic-inorganic hybridization interaction suggests new avenues for probing the electronic structure of this class of materials. It is incidentally shown that beam damage to the methylamine component can be avoided by moving the sample under the soft X-ray beam to minimize exposure and that this procedure is necessary to prevent the creation of experimental artifacts.
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Affiliation(s)
- Regan G Wilks
- Renewable Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB), 14109 Berlin, Germany
| | - Axel Erbing
- Department of Physics, Stockholm University, AlbaNova University Center, 106 91 Stockholm, Sweden
| | - Golnaz Sadoughi
- Department of Physics, University of Oxford, Clarendon Laboratory, Oxford OX1 3PJ, U.K
| | - David E Starr
- Renewable Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB), 14109 Berlin, Germany
| | - Evelyn Handick
- Renewable Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB), 14109 Berlin, Germany
| | - Frank Meyer
- Experimental Physics 7, University of Würzburg, 97074 Würzburg, Germany
| | - Andreas Benkert
- Experimental Physics 7, University of Würzburg, 97074 Würzburg, Germany
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Marcella Iannuzzi
- Physical Chemistry Institute, University of Zürich, 8057 Zürich, Switzerland
| | - Dirk Hauschild
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, Las Vegas, Nevada 89154, United States
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
| | - Monika Blum
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, Las Vegas, Nevada 89154, United States
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8176, United States
| | - Lothar Weinhardt
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, Las Vegas, Nevada 89154, United States
| | - Clemens Heske
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, Las Vegas, Nevada 89154, United States
| | - Henry J Snaith
- Department of Physics, University of Oxford, Clarendon Laboratory, Oxford OX1 3PJ, U.K
| | - Michael Odelius
- Department of Physics, Stockholm University, AlbaNova University Center, 106 91 Stockholm, Sweden
| | - Marcus Bär
- Renewable Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB), 14109 Berlin, Germany
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (HI ERN), 90429 Nürnberg, Germany
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91058 Erlangen, Germany
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39
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Structural phase transition, vibrational analysis, ionic conductivity and conduction mechanism studies in an organic-inorganic hybrid crystal: [N(CH3)3H]2CdCl4. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Zhang Y, Li M, Xu G. Phase Transition and Dielectric Response Originating from Disorder‐Order Transition in the In‐Based Organic‐Inorganic Hybrid Material [NH
3
(CH
2
)
5
NH
3
][InCl
5
(H
2
O)] ⋅ H
2
O. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001156] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yin‐Qiang Zhang
- Key Laboratory of Energy Materials Chemistry Ministry of Education Key Laboratory of Advanced Functional Materials Autonomous Region Institute of Applied Chemistry College of Chemistry Xinjiang University, Urumqi 830046 Xinjiang PR China
| | - Min Li
- Key Laboratory of Energy Materials Chemistry Ministry of Education Key Laboratory of Advanced Functional Materials Autonomous Region Institute of Applied Chemistry College of Chemistry Xinjiang University, Urumqi 830046 Xinjiang PR China
| | - Guan‐Cheng Xu
- Key Laboratory of Energy Materials Chemistry Ministry of Education Key Laboratory of Advanced Functional Materials Autonomous Region Institute of Applied Chemistry College of Chemistry Xinjiang University, Urumqi 830046 Xinjiang PR China
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41
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Xu XQ, Zhang H, Huang XQ, Liu YL. A high-temperature halide perovskite molecular ferroelastic with evident dielectric switching. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01365j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Under the quasi-spherical strategy, a hybrid halide perovskite (TMTB)CdCl3 is designed and synthesized and shows evident high-temperature ferroelastic phase transition and dielectric switching.
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Affiliation(s)
- Xiao-Qin Xu
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Hua Zhang
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Xue-Qin Huang
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Yu-Ling Liu
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
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42
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Ceratti DR, Zohar A, Kozlov R, Dong H, Uraltsev G, Girshevitz O, Pinkas I, Avram L, Hodes G, Cahen D. Eppur si Muove: Proton Diffusion in Halide Perovskite Single Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002467. [PMID: 33048452 DOI: 10.1002/adma.202002467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/24/2020] [Indexed: 05/19/2023]
Abstract
Ion diffusion affects the optoelectronic properties of halide-perovskites (HaPs). Until now, the fastest diffusion has been attributed to the movement of the halides, largely neglecting the contribution of protons, on the basis of computed density estimates. Here, the process of proton diffusion inside HaPs, following deuterium-hydrogen exchange and migration in MAPbI3 , MAPbBr3 , and FAPbBr3 single crystals, is proven through D/H NMR quantification, Raman spectroscopy, and elastic recoil detection analysis, challenging the original assumption of halide-dominated diffusion. The results are confirmed by impedance spectroscopy, where MAPbBr3 - and CsPbBr3 -based solar cells respond at very different frequencies. Water plays a key role in allowing the migration of protons as deuteration is not detected in its absence. The water contribution is modeled to explain and forecast its effect as a function of its concentration in the perovskite structure. These findings are of great importance as they evidence how unexpected, water-dependent proton diffusion can be at the basis of the ≈7 orders of magnitude spread of diffusion (attributed to I- and Br- ) coefficient values, reported in the literature. The reported enhancement of the optoelectronic properties of HaP when exposed to small amounts of water may be related to the finding.
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Affiliation(s)
- Davide Raffaele Ceratti
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Arava Zohar
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Roman Kozlov
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot, 7610001, Israel
- Department of Functional Inorganic Materials, Academician Semenov, Chernogolovka, Moscow, 142432, Russia
| | - Hao Dong
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot, 7610001, Israel
- School of Physics, Nanjing University, Nanjing, Jiangsu Province, 210093, China
| | - Gennady Uraltsev
- Department of Mathematics, Cornell University, Ithaca, NY, 14853, USA
| | - Olga Girshevitz
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Iddo Pinkas
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Liat Avram
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Gary Hodes
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - David Cahen
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot, 7610001, Israel
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat Gan, 5290002, Israel
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43
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Ellis CLC, Javaid H, Smith EC, Venkataraman D. Hybrid Perovskites with Larger Organic Cations Reveal Autocatalytic Degradation Kinetics and Increased Stability under Light. Inorg Chem 2020; 59:12176-12186. [DOI: 10.1021/acs.inorgchem.0c01133] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christie L. C. Ellis
- University of Massachusetts Amherst, Department of Chemistry, 690 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Hamza Javaid
- University of Massachusetts Amherst, Department of Chemistry, 690 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Emily C. Smith
- University of Massachusetts Amherst, Department of Chemistry, 690 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - D. Venkataraman
- University of Massachusetts Amherst, Department of Chemistry, 690 North Pleasant Street, Amherst, Massachusetts 01003, United States
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44
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Limmer DT, Ginsberg NS. Photoinduced phase separation in the lead halides is a polaronic effect. J Chem Phys 2020; 152:230901. [PMID: 32571034 DOI: 10.1063/1.5144291] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a perspective on recent observations of the photoinduced phase separation of halides in multi-component lead-halide perovskites. The spontaneous phase separation of an initial homogeneous solid solution under steady-state illumination conditions is found experimentally to be reversible, stochastic, weakly dependent on morphology, yet strongly dependent on composition and thermodynamic state. Regions enriched in a specific halide species that form upon phase separation are self-limiting in size, pinned to specific compositions, and grow in number in proportion to the steady-state carrier concentration until saturation. These empirical observations of robustness rule out explanations based on specific defect structures and point to the local modulation of an existing miscibility phase transition in the presence of excess charge carriers. A model for rationalizing existing observations based on the coupling between composition, strain, and charge density fluctuations through the formation of polarons is reviewed.
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Affiliation(s)
- David T Limmer
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Naomi S Ginsberg
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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45
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Stock C, Songvilay M, Gehring PM, Xu G, Roessli B. Broadband critical dynamics in disordered lead-based perovskites. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:374012. [PMID: 32252031 DOI: 10.1088/1361-648x/ab86ee] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Materials based on the cubic perovskite unit cell continue to provide the basis for technologically important materials with two notable recent examples being lead-based relaxor piezoelectrics and lead-based organic-inorganic halide photovoltaics. These materials carry considerable disorder, arising from site substitution in relaxors and molecular vibrations in the organic-inorganics, yet much of our understanding of these systems derives from the initial classic work of Prof. Roger A Cowley, who applied both theory and neutron scattering methods while at Chalk River Laboratories to the study of lattice vibrations in SrTiO3. Neutron scattering continues to play a vital role in characterizing lattice vibrations in perovskites owing to the simple cross section and the wide range of energy resolutions achievable with current neutron instrumentation. We discuss the dynamics that drive the phase transitions in the relaxors and organic-inorganic lead-halides in terms of neutron scattering and compare them to those in phase transitions associated with a 'central peak' and also a soft mode. We review some of the past experimental work on these materials and present new data from high-resolution time-of-flight backscattering spectroscopy taken on organic-inorganic perovskites. We will show that the structural transitions in disordered lead-based perovskites are driven by a broad frequency band of excitations.
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Affiliation(s)
- C Stock
- School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - M Songvilay
- School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - P M Gehring
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland, 20899, United States of America
| | - Guangyong Xu
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland, 20899, United States of America
| | - B Roessli
- Laboratory for Neutron Scattering and Imaging (LNS), Paul Scherrer Institute (PSI), 5232 Villigen PSI, Switzerland
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46
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Sui Y, Liu DS, Chen WT, Wang LJ, Ma YX, Lai HQ, Zhou YW, Wen HR. Organic-inorganic Hybrid ([BrCH 2 CH 2 N(CH 3 ) 3 ] + 2 [CdBr 4 ] 2- ) with Unusual Ferroelectric and Switchable Dielectric Bifunctional Properties over Different Temperature Range. Chem Asian J 2020; 15:1621-1626. [PMID: 32239798 DOI: 10.1002/asia.202000241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/30/2020] [Indexed: 11/09/2022]
Abstract
Both ferroelectric and switchable dielectric behaviors are of great academic value and practical significance, but they usually exist alone. If combine the two properties into one compound, it will be more valuable in practical application. In this paper, quasi-spherical (2-bromoethyl) trimethylammonium cation was used to match with [CdBr4 ]2- anion, and a new organic-inorganic hybrid compound ([BrCH2 CH2 N(CH3 )3 ]+ 2 [CdBr4 ]2- , BETABCdBr) was obtained and carefully characterized. The results indicate that this compound undergoes two continuous reversible phase transition around 342 K and 390 K. It could respectively exhibit ferroelectric and switchable dielectric properties over different temperature range. This work may provide a new clue to explore new types of bifunctional phase transition smart materials to meet various application requirements.
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Affiliation(s)
- Yan Sui
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
| | - Dong-Sheng Liu
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
| | - Wen-Tong Chen
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
| | - Liang-Jun Wang
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
| | - Yu-Xiao Ma
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
| | - Hui-Qi Lai
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
| | - Yu-Wei Zhou
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
| | - He-Rui Wen
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji'An, Jiangxi, 343009, P.R. China
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47
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Chai S, Xiong J, Zheng Y, Shi R, Xu J. Dielectric phase transition of an A 2BX 4-type perovskite with a pentahedral to octahedral transformation. Dalton Trans 2020; 49:2218-2224. [PMID: 32003371 DOI: 10.1039/c9dt04270a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Organic-inorganic hybrid compounds that undergo reversible dielectric phase transitions are a very attractive class of smart materials due to their wide applications in data storage, data communication and signal sensing. Here, a piperidine ring, C5H11N, was introduced into the inorganic lead halide perovskite scaffold to obtain three hybrid perovskite compounds, [C5H12N]2PbCl4 (1), [C5H12N]2PbBr4 (2), and [C5H12N]PbI3 (3). When compound 2 and compound 3 feature static two-dimensional (2D) and one-dimensional (1D) perovskite structures, respectively, it is striking that compound 1 shows a reversible pentahedral to octahedral transformation. It undergoes an above-room-temperature dielectric phase transition at Tc≅ 352 K, wherein the high dielectric constant is more than twice the low dielectric constant. Structural analysis shows that 1 undergoes a phase transition from the space group Pnma at the low temperature phase (LTP) to C2/c at the high temperature phase (HTP). The phase transition originates from the order-disorder conversion of piperidinium cations. It is interesting to note that, the Pb2+ cations in the inorganic moieties change from five-coordinate at the LTP to six-coordinate at the HTP. The discovery of dielectric phase transition hybrid organic-inorganic lead halide perovskite materials further enhances the potential applications of high temperature responsive dielectric switchable materials.
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Affiliation(s)
- Siqian Chai
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China.
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48
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Bresolin BM, Ben Hammouda S, Sillanpää M. An Emerging Visible-Light Organic-Inorganic Hybrid Perovskite for Photocatalytic Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E115. [PMID: 31936181 PMCID: PMC7023354 DOI: 10.3390/nano10010115] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/20/2019] [Accepted: 12/28/2019] [Indexed: 12/02/2022]
Abstract
The development of visible-light active photocatalysts is a current challenge especially energy and environmental-related fields. Herein, methylammonium lead iodide perovskite (MAIPb) was chosen as the novel semiconductor material for its ability of absorbing visible-light. An easily reproducible and efficient method was employed to synthesize the as-mentioned material. The sample was characterized by various techniques and has been used as visible-light photocatalyst for degradation of two model pollutants: rhodamine B (RhB) and methylene-blue (MB). The photo-degradation of RhB was found to achieve about 65% after 180 min of treatment. Moreover, the efficiency was enhanced to 100% by assisting the process with a small amount of H2O2. The visible-light activity of the photocatalyst was attributed to its ability to absorb light as well as to enhance separation of photogenerated carriers. The main outcome of the present work is the investigation of a hybrid perovskite as photocatalyst for wastewater treatment.
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Affiliation(s)
- Bianca-Maria Bresolin
- Laboratory of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Sammonkatu 12, 50130 Mikkeli, Finland; (S.B.H.); (M.S.)
| | - Samia Ben Hammouda
- Laboratory of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Sammonkatu 12, 50130 Mikkeli, Finland; (S.B.H.); (M.S.)
| | - Mika Sillanpää
- Laboratory of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Sammonkatu 12, 50130 Mikkeli, Finland; (S.B.H.); (M.S.)
- Department of Civil and Environmental Engineering, Florida International University, Miami, FL 33174, USA
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49
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Srikanth M, Ozório MS, Da Silva JLF. Optical and dielectric properties of lead perovskite and iodoplumbate complexes: an ab initio study. Phys Chem Chem Phys 2020; 22:18423-18434. [DOI: 10.1039/d0cp03512b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Optical and dielectric properties, and energetic stability orders of black phase of perovskites and yellow phase of iodoplumbates have been studied using density functional theory; where the optical dielectric constant varies with the polymorphic phase and nature of cation.
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Affiliation(s)
- Malladi Srikanth
- São Carlos Institute of Chemistry
- University of São Paulo
- São Carlos
- Brazil
| | - Mailde S. Ozório
- São Carlos Institute of Chemistry
- University of São Paulo
- São Carlos
- Brazil
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50
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Qian WH, Cheng XF, Zhao YY, Zhou J, He JH, Li H, Xu QF, Li NJ, Chen DY, Lu JM. Independent Memcapacitive Switching Triggered by Bromide Ion Migration for Quaternary Information Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806424. [PMID: 31379043 DOI: 10.1002/adma.201806424] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 06/08/2019] [Indexed: 06/10/2023]
Abstract
Memcapacitors are emerging as an attractive candidate for high-density information storage due to their multilevel and adjustable capacitances and long-term retention without a power supply. However, knowledge of their memcapacitive mechanism remains unclear and accounts for the limited implementation of memcapacitors for multilevel memory technologies. Here, repeatable and reproducible quaternary memories fabricated from hybrid perovskite (CH3 NH3 SnBr3 ) memcapacitors are reported. The device can be modulated to at least four capacitive states ranging from 0 to 169 pF with retention for 104 s. Impressively, an effective device yield approaching 100% for quaternary memory switching is achieved by a batch of devices; each state has a sufficiently narrow distribution that can be distinguished from the others and is superior to most multilevel memories that have a low device yield as well as an overlapping distribution of states. The memcapacitive switching stems from the modulated p-i-n junction capacitance triggered by Br- migration, as demonstrated by in situ element mapping, X-ray photoelectron spectra, and frequency-dependent capacitance measurements; this mechanism is different from the widely reported memristive switching involving filamentary conduction. The results provide a new way to produce high-density information storage through memcapacitors.
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Affiliation(s)
- Wen-Hu Qian
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
- Testing and Analysis Center, Soochow University, Suzhou, 215123, P. R. China
| | - Xue-Feng Cheng
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Yong-Yan Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Jin Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Jing-Hui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Qing-Feng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Na-Jun Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Dong-Yun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Jian-Mei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
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