1
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Xu Z, Zhong H, Zheng R, Wan X, Wang Q, Wang H, Tang G. Theoretical Investigation of the Electronic Property Trends of Antiperovskites with A-site Tetrahedral Cluster Anion. J Colloid Interface Sci 2025; 697:137889. [PMID: 40412125 DOI: 10.1016/j.jcis.2025.137889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2025] [Revised: 05/13/2025] [Accepted: 05/13/2025] [Indexed: 05/27/2025]
Abstract
Antiperovskites have garnered significant research interest due to their structural similarity to traditional perovskites and their potential in optoelectronic applications. Recently, their derivatives featuring a combination of tetrahedral and octahedral units within a single antiperovskite lattice have been experimentally synthesized. However, the compositional space of such structural motifs suitable for photovoltaic applications remains largely unexplored. In this study, we perform high-throughput first-principles calculations to screen a series of novel antiperovskite compounds with the general formula X3BA, where the A-site anions are replaced with tetrahedral anion clusters such as (CuCl4)3-, (ZnH3O)3- and (SiO3Cl)3-. Specifically, we evaluate the formability of 60 X3BA compounds, each considered in four competing crystal phases (I4/mcm, P4ncc, Pca21, and Pnma), and systematically analyze the influence of crystal symmetry, tetrahedral cluster anions, and octahedral factors on their electronic structures. Considering geometric factors and electronic band gap criteria, six thermodynamically stable compounds in the I4/mcm phase are identified from 240 candidate structures, including Ca3PCuCl4, Ca3AsCuCl4, Sr3PCuCl4, Sr3AsCuCl4, Ba3PCuCl4, and Ba3AsCuCl4. Among them, Ba3AsCuCl4 stands out as a promising photovoltaic absorber, featuring an optimal HSE06 band gap of 1.55 eV, appropriate carrier effective masses, and strong parity-allowed transitions between band edges at the Γ point. This work expands the structural design paradigm of inorganic solar cell absorbers by simultaneously integrating the core structural motifs of perovskite photovoltaic materials, offering new insights into the development of next-generation photovoltaic absorbers.
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Affiliation(s)
- Zhengyu Xu
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China
| | - Hongxia Zhong
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China.
| | - Ruogu Zheng
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China
| | - Xiaoying Wan
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China
| | - Qingbo Wang
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China
| | - Hai Wang
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China
| | - Gang Tang
- School of Interdisciplinary Science, Beijing Institute of Technology, Beijing 100081, China.
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2
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Akhtar M, Munir J, Ain Q, Aldwayyan AS, Ghaithan HM, Ahmed AAA, Qaid SMH. The Determination of the Mechanical, Optoelectronic, Structural and Transport Attributes of Double Perovskite A 2InGaBr 6 (A=K, Rb, Cs) Halides for Renewable Energies: A DFT Study. Chemphyschem 2025; 26:e202400891. [PMID: 39589350 DOI: 10.1002/cphc.202400891] [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: 09/14/2024] [Revised: 11/19/2024] [Accepted: 11/26/2024] [Indexed: 11/27/2024]
Abstract
Safer and more environmentally friendly alternatives to lead-based perovskites include lead-free halide perovskites, which retain good optoelectronic capabilities while reducing environmental toxicity. They also align better with ecological and regulatory standards for green technologies. In this manuscript, we have presented the first principles analysis of the physical traits of A2InGaBr6 (A=K, Rb, Cs). The exchange-correlation effects are treated with mBJ potential. The structural characteristic of A2InGaBr6 (A=K, Rb, Cs) was assessed through the volume optimization curves, formation energies and tolerance factor. The elastic properties of the studied halides are analyzed through elastic constants. The electronic band structures revealed indirect bandgaps for K2InGaBr6, Rb2InGaBr6, and Cs2InGaBr6. The optical properties indicate promising potential in the fabrication of optoelectronic devices for A2InGaBr6 (A=K, Rb, Cs). The transport properties for the studied halides are computed using the BoltzTraP code, which reveals that these halides are promising candidates for thermoelectricity.
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Affiliation(s)
- Masoofa Akhtar
- Department of Physics, Riphah International University, Lahore, Pakistan
| | - Junaid Munir
- Department of Physics, Riphah International University, Lahore, Pakistan
| | - Quratul Ain
- Department of Physics, University of Management and Technology, Lahore, Pakistan
| | - Abdullah S Aldwayyan
- Department of Physics & Astronomy, College of Sciences, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hamid M Ghaithan
- Department of Physics & Astronomy, College of Sciences, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdullah Ahmed Ali Ahmed
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universität Hamburg, 20146, Hamburg, Germany
| | - Saif M H Qaid
- Department of Physics & Astronomy, College of Sciences, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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3
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Fu X, Zhao ZY, Guo S, Nan ZA, Meng L, Lu CZ. Enhancing Optoelectronic Performance of All-Inorganic Double Perovskites via Halogen Doping: Synergistic Screening Strategies and Multiscale Simulations. J Chem Theory Comput 2024; 20:9148-9160. [PMID: 39392784 DOI: 10.1021/acs.jctc.4c01115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2024]
Abstract
Designing all-inorganic double perovskites through element mixing is a promising strategy to enhance their optoelectronic performance and structural stability. The complex interplay between multilevel structures and optoelectronic properties in element-mixed double perovskites necessitates further in-depth theoretical exploration. In this study, we employ screening strategies and multiscale simulations combining first-principles methods and device-scale continuum models to identify two novel element-mixed compounds, Rb2AgInCl3I3 and Cs2AgInCl3I3, as promising candidates for photovoltaic applications. These compounds exhibit favorable structural factors and suitable direct band gaps. Theoretical investigations using first-principles methods with the HSE06 functional reveal direct band gaps of 0.98 and 1.26 eV for Rb2AgInCl3I3 and Cs2AgInCl3I3, respectively, with corresponding optical absorption coefficients exceeding 105 cm-1 in the visible light range. Cs2AgInCl3I3 features high charge mobilities of approximately 20 cm2·V-1·s-1 and a notable single-junction spectroscopic limited maximum efficiency (SLME) of 25.54%. Further analysis using the device-scale continuum model simulated the nonradiative recombination effects on power conversion efficiency, integrating quantum-mechanically calculated optoelectronic properties. These theoretical investigations, which bridge composition engineering with multiscale simulations, provide valuable insights into screening novel, lead-free, halogen-mixed double metal perovskite optoelectronic devices, highlighting their potential for high-performance solar energy applications.
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Affiliation(s)
- Xifeng Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, P. R. China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
| | - Zhi-Ying Zhao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
| | - Sai Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, P. R. China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
| | - Zi-Ang Nan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
| | - Lingyi Meng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, P. R. China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
| | - Can-Zhong Lu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, P. R. China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
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4
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Hooijer R, Wang S, Biewald A, Eckel C, Righetto M, Chen M, Xu Z, Blätte D, Han D, Ebert H, Herz LM, Weitz RT, Hartschuh A, Bein T. Overcoming Intrinsic Quantum Confinement and Ultrafast Self-Trapping in Ag-Bi-I- and Cu-Bi-I-Based 2D Double Perovskites through Electroactive Cations. J Am Chem Soc 2024; 146:26694-26706. [PMID: 39311491 DOI: 10.1021/jacs.4c04616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
The possibility to combine organic semiconducting materials with inorganic halide perovskites opens exciting pathways toward tuning optoelectronic properties. Exploring stable and nontoxic, double perovskites as a host for electroactive organic cations to form two-dimensional (2D) hybrid materials is an emerging opportunity to create both functional and lead-free materials for optoelectronic applications. By introducing naphthalene and pyrene moieties into Ag-Bi-I and Cu-Bi-I double perovskite lattices, intrinsic electronic challenges of double perovskites are addressed and the electronic anisotropy of 2D perovskites can be modulated. (POE)4AgBiI8 containing pyrene moieties in the 2D layers was selected from a total of eight new 2D double perovskites, exhibiting a favorable electronic band structure with a type IIb multiple quantum well system based on a layer architecture suitable for out-of-plane conductivity and leading to a photocurrent response ratio of almost 3 orders of magnitude under AM1.5G illumination. Finally, an exclusively parallelly oriented thin film of (POE)4AgBiI8 was integrated into a device to construct the first pure n = 1 Ruddlesden-Popper 2D double perovskite solar cell.
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Affiliation(s)
- Rik Hooijer
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Shizhe Wang
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Alexander Biewald
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Christian Eckel
- First Institute of Physics, Faculty of Physics, Georg-August-University, Göttingen 37073 Germany
| | - Marcello Righetto
- Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, U.K
| | - Meizhu Chen
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Zehua Xu
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Dominic Blätte
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Dan Han
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
- School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Hubert Ebert
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Laura M Herz
- Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, U.K
- Institute for Advanced Study, Technical University of Munich, Lichtenbergstrasse 2a, Garching D-85748, Germany
| | - R Thomas Weitz
- First Institute of Physics, Faculty of Physics, Georg-August-University, Göttingen 37073 Germany
| | - Achim Hartschuh
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
| | - Thomas Bein
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, Munich 81377, Germany
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5
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Pei Y, Tu D, Li C, Han S, Xie Z, Wen F, Wang L, Chen X. Boosting Near‐Infrared Luminescence of Lanthanide in Cs
2
AgBiCl
6
Double Perovskites via Breakdown of the Local Site Symmetry. Angew Chem Int Ed Engl 2022; 61:e202205276. [DOI: 10.1002/anie.202205276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Indexed: 12/26/2022]
Affiliation(s)
- Yifan Pei
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- College of Chemistry and Materials Science Fujian Normal University Fuzhou Fujian 350117 China
| | - Datao Tu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- College of Chemistry and Materials Science Fujian Normal University Fuzhou Fujian 350117 China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China
| | - Chenliang Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Siyuan Han
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Zhi Xie
- College of Mechanical and Electronic Engineering Fujian Agriculture and Forestry University Fuzhou Fujian 350002 China
| | - Fei Wen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- College of Chemistry and Materials Science Fujian Normal University Fuzhou Fujian 350117 China
| | - Luping Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Xueyuan Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- College of Chemistry and Materials Science Fujian Normal University Fuzhou Fujian 350117 China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China
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6
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Pei Y, Tu D, Li C, Han S, Xie Z, Wen F, Wang L, Chen X. Boosting Near‐Infrared Luminescence of Lanthanide in Cs2AgBiCl6 Double Perovskites via Breakdown of the Local Site Symmetry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yifan Pei
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter CAS Key Laboratory of Design and Assembly of Functional Nanostructures CHINA
| | - Datao Tu
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter CAS Key Laboratory of Design and Assembly of Functional Nanostructures CHINA
| | - Chenliang Li
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter CAS Key Laboratory of Design and Assembly of Functional Nanostructures CHINA
| | - Siyuan Han
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter CAS Key Laboratory of Design and Assembly of Functional Nanostructures CHINA
| | - Zhi Xie
- Fujian Agricultural University: Fujian Agriculture and Forestry University College of Mechanical and Electronic Engineering CHINA
| | - Fei Wen
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter CAS Key Laboratory of Design and Assembly of Functional Nanostructures CHINA
| | - Luping Wang
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter CAS Key Laboratory of Design and Assembly of Functional Nanostructures CHINA
| | - Xueyuan Chen
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 155 West Yangqiao Road Fuzhou CHINA
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7
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Chen Y, Motti SG, Oliver RDJ, Wright AD, Snaith HJ, Johnston MB, Herz LM, Filip MR. Optoelectronic Properties of Mixed Iodide-Bromide Perovskites from First-Principles Computational Modeling and Experiment. J Phys Chem Lett 2022; 13:4184-4192. [PMID: 35511476 PMCID: PMC9109221 DOI: 10.1021/acs.jpclett.2c00938] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/02/2022] [Indexed: 05/26/2023]
Abstract
Halogen mixing in lead-halide perovskites is an effective route for tuning the band gap in light emission and multijunction solar cell applications. Here we report the effect of halogen mixing on the optoelectronic properties of lead-halide perovskites from theory and experiment. We applied the virtual crystal approximation within density functional theory, the GW approximation, and the Bethe-Salpeter equation to calculate structural, vibrational, and optoelectronic properties for a series of mixed halide perovskites. We separately perform spectroscopic measurements of these properties and analyze the impact of halogen mixing on quasiparticle band gaps, effective masses, absorption coefficients, charge-carrier mobilities, and exciton binding energies. Our joint theoretical-experimental study demonstrates that iodide-bromide mixed-halide perovskites can be modeled as homovalent alloys, and local structural distortions do not play a significant role for the properties of these mixed species. Our study outlines a general theoretical-experimental framework for future investigations of novel chemically mixed systems.
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Affiliation(s)
- Yinan Chen
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
| | - Silvia G. Motti
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
| | - Robert D. J. Oliver
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
| | - Adam D. Wright
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
| | - Henry J. Snaith
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
| | - Michael B. Johnston
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
| | - Laura M. Herz
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
- Institute
for Advanced Study, Technical University
of Munich, Lichtenbergstrasse
2a, D-85748 Garching, Germany
| | - Marina R. Filip
- Department
of Physics, University of Oxford, Clarendon
Laboratory, OX1 3PU Oxford, U.K.
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8
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Petkov V, Ren Y. Critical cation-anion radius ratio and two-dimensional antiferromagnetism in van der Waals TMPS 3(TM = Mn, Fe, Ni). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:175404. [PMID: 35130524 DOI: 10.1088/1361-648x/ac527a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Two-dimensional TMPS3antiferromagnets, transition metal (TM) = Mn, Fe, Ni, are studied by high-energy x-ray diffraction and atomic pair distribution analysis over a broad temperature range. Results show that the compounds exhibit common average but distinct local atomic structure, including distinct distortions of the constituent TM-S octahedra, magnitude and direction of atomic displacements, TM-TM distances and TM-S-TM bond angles. The differences in the local structure may be rationalized in terms of the Pauling's rule for the critical ratio of TM2+cation and S2-anion radii for octahedral coordination. We argue that the observed differences in the local structure are behind the differences in the antiferromagnetic properties of TMPS3compounds, including different magnetic anisotropy and Neel temperature.
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Affiliation(s)
- Valeri Petkov
- Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48858, United States of America
| | - Yang Ren
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States of America
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong, People's Republic of China
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9
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Dan S, Maiti A, Chatterjee S, Pal AJ. Origin of bandgap bowing in Cs 2Na 1-xAg xBiCl 6double perovskite solid-state alloys: a paradigm through scanning tunneling spectroscopy. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:485701. [PMID: 34479226 DOI: 10.1088/1361-648x/ac238c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
Bandgap bowing has recently been emerged as an effective strategy toward band-engineering in metal halide perovskites. In this work, we report extensive studies on the bowing phenomenon in Cs2NaBiCl6double perovskite upon alloying with silver at the sodium site. Through optical spectroscopy, composition-dependent bandgap in Cs2Na1-xAgxBiCl6(0 ⩽x⩽ 1) evidenced bandgap bowing with an upward-concave nature. Further from the quadratic fit, the bowing coefficient (b= 0.74 eV) turned out to be independent of composition and is close to the theoretically predicted value. From scanning tunneling spectroscopy and associated studies on band-energies, we have observed that the bandgap-lowering originated from a significant change of the valence-band position. The behavior of band-energies has been explained through the orbital-contributions of the constituent elements responsible in forming the two bands. Formation of an internal type-I band-alignment between the two end-members, namely Cs2NaBiCl6and Cs2AgBiCl6could be visualized. Based on experimental evidences, we could infer that the bow-like evolution of bandgap in Cs2Na1-xAgxBiCl6alloys is principally dominated by structural distortions in the Cs2NaBiCl6host-lattice upon incorporation of silver.
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Affiliation(s)
- Soirik Dan
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Abhishek Maiti
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Soumyo Chatterjee
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Amlan J Pal
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452001, India
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10
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Han D, Feng C, Du MH, Zhang T, Wang S, Tang G, Bein T, Ebert H. Design of High-Performance Lead-Free Quaternary Antiperovskites for Photovoltaics via Ion Type Inversion and Anion Ordering. J Am Chem Soc 2021; 143:12369-12379. [PMID: 34339219 DOI: 10.1021/jacs.1c06403] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The emergence of halide double perovskites significantly increases the compositional space for lead-free and air-stable photovoltaic absorbers compared to halide perovskites. Nevertheless, most halide double perovskites exhibit oversized band gaps (>1.9 eV) or dipole-forbidden optical transition, which are unfavorable for efficient single-junction solar cell applications. The current device performance of halide double perovskite is still inferior to that of lead-based halide perovskites, such as CH3NH3PbI3 (MAPbI3). Here, by ion type inversion and anion ordering on perovskite lattice sites, two new classes of pnictogen-based quaternary antiperovskites with the formula of X6B2AA' and X6BB'A2 are designed. Phase stability and tunable band gaps in these quaternary antiperovskites are demonstrated based on first-principles calculations. Further photovoltaic-functionality-directed screening of these materials leads to the discovery of 5 stable compounds (Ca6N2AsSb, Ca6N2PSb, Sr6N2AsSb, Sr6N2PSb, and Ca6NPSb2) with suitable direct band gaps, small carrier effective masses and low exciton binding energies, and dipole-allowed strong optical absorption, which are favorable properties for a photovoltaic absorber material. The calculated theoretical maximum solar cell efficiencies based on these five compounds are all larger than 29%, comparable to or even higher than that of the MAPbI3 based solar cell. Our work reveals the huge potential of quaternary antiperovskites in the optoelectronic field and provides a new strategy to design lead-free and air-stable perovskite-based photovoltaic absorber materials.
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Affiliation(s)
- Dan Han
- Department of Chemistry, University of Munich, Munich D-81377, Germany
| | - Chunbao Feng
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Mao-Hua Du
- Materials Science & Technology Division, Oak Ridge National Labortory, Oak Ridge, Tennessee 37831, United States
| | - Tao Zhang
- Key Laboratory of Polar Materials and Devices (MOE), East China Normal University, Shanghai 200241, P. R. China
| | - Shizhe Wang
- Department of Chemistry, University of Munich, Munich D-81377, Germany
| | - Gang Tang
- Theoretical Materials Physics, Q-MAT, CESAM, University of Liège, B-4000 Liège, Belgium
| | - Thomas Bein
- Department of Chemistry, University of Munich, Munich D-81377, Germany
| | - Hubert Ebert
- Department of Chemistry, University of Munich, Munich D-81377, Germany
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Han D, Ebert H. Identification of Potential Optoelectronic Applications for Metal Thiophosphates. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3836-3844. [PMID: 33445861 DOI: 10.1021/acsami.0c17818] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Metal thiophosphates are a large family of compounds that received far less attention than conventional chalcogenides. Recently, however, metal thiophosphates arouse research interest in regard of energy harvesting and conversion due to their structural and chemical diversity. Nevertheless, there remain many unexplored metal thiophosphates. Here, we performed a comprehensive investigation on the electronic and optoelectronic properties of a series of metal thiophosphates using first-principles calculations and identified several highly promising compounds as p-type transparent conductors, photovoltaic absorbers, and single visible-light-driven photocatalysts for water splitting. Our investigation reveals the intrinsic features of a series of typical metal thiophosphates, identifies their new optoelectronic applications, and validates that metal thiophosphates are promising materials deserving exploration.
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Affiliation(s)
- Dan Han
- Department of Chemie, Ludwig-Maximilians-Universität München, München 81377, Germany
| | - Hubert Ebert
- Department of Chemie, Ludwig-Maximilians-Universität München, München 81377, Germany
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Liu Q, Liang W. How the Structures and Properties of Pristine and Anion Vacancy Defective Organic-Inorganic Hybrid Double Perovskites MA 2AgIn(Br xI 1-x) 6 Vary with Br Content x. J Phys Chem Lett 2020; 11:10315-10322. [PMID: 33227194 DOI: 10.1021/acs.jpclett.0c03137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This work is dedicated to theoretically investigating the mixed-halide direct band gap organic-inorganic hybrid double perovskites (OIHdPs), MA2AgIn(BrxI1-x)6, with and without anion vacancy point (AVP) defects. We calculate their structural and optoelectronic properties with different halide compositions and find that the effect of halide composition on the properties of MA2AgIn(BrxI1-x)6 is quite different from that on lead-bearing perovskites. All the vacancy-free I-bearing systems (x ≠ 1) have nearly the same direct band gap width and carrier activity with MAPbI3. The Br-rich systems (x > 0.50) are relatively thermodynamical stable and not prone to spontaneous anion segregation and show a strong "self-tolerance" feature toward the inherit defects as well. With these distinguished properties, we are able to conclude that MA2AgIn(BrxI1-x)6 with 0.50 < x < 1 are promising candidates for Pb-free photovoltaic materials. This Letter provides a detailed microscopic understanding of the vacancy-induced band distortion in lead-free heterovalent substitution OIHdPs and has some guiding significance for molecular design of nontoxic photovoltaic materials.
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Affiliation(s)
- Qi Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
| | - WanZhen Liang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
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