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Ma Z, Yang S, Shi Y, Fu Y, Wang K, Xiao G, Zou B. Considerable Piezochromism in All-Inorganic Zero-Dimensional Perovskite Nanocrystals via Pressure-Modulated Self-Trapped Exciton Emission. Angew Chem Int Ed Engl 2024:e202406015. [PMID: 38635006 DOI: 10.1002/anie.202406015] [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: 03/28/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 04/19/2024]
Abstract
Piezochromic materials refer to a class of matters that alter their photoluminescence (PL) colors in response to the external stimuli, which exhibit promising smart applications in anti-counterfeiting, optoelectronic memory and pressure-sensing. However, so far, most reported piezochromic materials have been confined to organic materials or hybrid materials containing organic moieties with limited piezochromic range of less than 100 nm in visible region. Here, we achieved an intriguing piezochromism in all-inorganic zero-dimensional (0D) Cs3Cu2Cl5 nanocrystals (NCs) with a considerable piezochromic range of 232 nm because of their unique inorganic rigid structure. The PL energy shifted from the lowest-energy red fluorescence (1.85 eV) to the highest-energy blue fluorescence (2.83 eV), covering almost the entire visible wavelength range. Pressure-modulated self-trapped exciton emission between different energy levels of self-trapped states within Cs3Cu2Cl5 NCs was the main reason for this piezochromism property. Note that the quenched emission, which is over five times more intense than that in the initial state, is retained under ambient conditions upon decompression. This work provides a promising pressure indicating material, particularly used in pressure stability monitoring for equipment working at extreme environments.
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Affiliation(s)
- Zhiwei Ma
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Songrui Yang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Yue Shi
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Yuan Fu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Kai Wang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252000, China
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
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2
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Hosen A, Islam MR, Badhan SH. Exploring the influence of pressure-induced semiconductor-to-metal transition on the physical properties of cubic perovskites FrXCl 3 (X = Ge and Sn). Heliyon 2024; 10:e27581. [PMID: 38576570 PMCID: PMC10990873 DOI: 10.1016/j.heliyon.2024.e27581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/07/2024] [Accepted: 03/03/2024] [Indexed: 04/06/2024] Open
Abstract
Even though lead halide perovskites have outstanding physiochemical properties and improved power conversion efficiency, most of these compounds threaten their future commercialization because of their instability and highly toxic nature. Thus, it is preferable to use stable alternative elements rather than lead to make environmentally friendly perovskite material that will have comparable optical and electronic properties to those constructed from Pb-based perovskites. However, devices constructed from lead-free perovskites typically display a lower power conversion efficiency. Applying hydrostatic pressure could be deemed an effective method to alter the physical properties of these compounds. This not only improves their performance in application but also reveals significant correlations between structure and properties. This work uses DFT to investigate the structural, electronic, optical, and elastic properties of non-toxic, francium-based halide perovskites FrXCl3 (X = Ge, Sn) at different levels of hydrostatic pressures that vary from 0 to 10 GPa. The estimated structural parameter's strong correlation with the data from earlier studies ensures the accuracy of the current findings. Pressure causes the Fr-Cl and Ge (Sn)-Cl bonds to shorten and become stronger. The electronic property calculations demonstrated that both compounds are direct band-gap semiconductors. The application of pressure leads to a linear reduction in the band gap (semiconducting to metallic state) and raises the electronic density of states around the Fermi level by forcing the valence band electrons upward, indicating that the optoelectronic device's performance can be tuned and improved. The values of the dielectric constant, absorptivity and reflectivity showed an increasing tendency with pressure. As the pressure applied to the compounds increases, the absorption spectra show a redshift. These findings suggested that the FrXCl3 (X = Ge and Sn) compound becomes more appropriate for usage in optoelectronic applications under pressure. Furthermore, our examination of the mechanical properties indicates that both FrGeCl3 and FrSnCl3 exhibit mechanically stability, and ductility. Interestingly, we observe an increase in ductility as pressure levels rise.
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Affiliation(s)
- Asif Hosen
- Department of Materials Science and Engineering, Khulna University of Engineering & Technology (KUET), Khulna, 9203, Bangladesh
| | - Md. Rasidul Islam
- Department of Electrical and Electronic Engineering, Bangamata Sheikh Fojilatunnesa Mujib Science & Technology University, Jamalpur, 2012, Bangladesh
| | - Shahriar Haque Badhan
- Department of Materials Science and Engineering, Khulna University of Engineering & Technology (KUET), Khulna, 9203, Bangladesh
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3
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Rahman MF, Hasan Toki MN, Irfan A, Chaudhry AR, Rahaman R, Rasheduzzaman M, Hasan MZ. A novel investigation of pressure-induced semiconducting to metallic transition of lead free novel Ba 3SbI 3 perovskite with exceptional optoelectronic properties. RSC Adv 2024; 14:11169-11184. [PMID: 38590348 PMCID: PMC10999911 DOI: 10.1039/d4ra00395k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/27/2024] [Indexed: 04/10/2024] Open
Abstract
The structural, electronic, mechanical, and optical characteristics of barium-based halide perovskite Ba3SbI3 under the influence of pressures ranging from 0 to 10 GPa have been analyzed using first-principles calculations for the first time. The new perovskite Ba3SbI3 material was shown to be a direct band gap semiconductor at 0 GPa, but the band gap diminished when the applied pressure increased from 0 to 10 GPa. So the Ba3SbI3 material undergoes a transition from semiconductor to metallic due to high pressure at 10 GPa. The Ba3SbI3 material also exhibits an increase in optical absorption and conductivity with applied pressure due to the change in band gap, which is more suitable for solar absorbers, surgical instruments, and optoelectronic devices. The charge density maps confirm the presence of both ionic and covalent bonding characteristics. Exploration into the mechanical characteristics indicates that the Ba3SbI3 perovskite is mechanically stable. Additionally, the Ba3SbI3 compound becomes strongly anisotropic at high pressure. The insightful results of our simulations will all be helpful for the experimental structure of a new effective Ba3SbI3-based inorganic perovskite solar cell in the near future.
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Affiliation(s)
- Md Ferdous Rahman
- Advanced Energy Materials and Solar Cell Research Laboratory, Department of Electrical and Electronic Engineering, Begum Rokeya University Rangpur 5400 Bangladesh
| | - Md Naim Hasan Toki
- Advanced Energy Materials and Solar Cell Research Laboratory, Department of Electrical and Electronic Engineering, Begum Rokeya University Rangpur 5400 Bangladesh
| | - Ahmad Irfan
- Department of Chemistry, College of Science, King Khalid University P. O. Box 9004 Abha 61413 Saudi Arabia
| | - Aijaz Rasool Chaudhry
- Department of Physics, College of Science, University of Bisha P. O. Box 551 Bisha 61922 Saudi Arabia
| | - Rajabur Rahaman
- Department of Electrical and Electronic Engineering, International Islamic University Chittagong Kumira Chittagong 4318 Bangladesh
| | - Md Rasheduzzaman
- Department of Electrical and Electronic Engineering, International Islamic University Chittagong Kumira Chittagong 4318 Bangladesh
| | - Md Zahid Hasan
- Department of Electrical and Electronic Engineering, International Islamic University Chittagong Kumira Chittagong 4318 Bangladesh
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4
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Chen L, Chu Y, Qin X, Gao Z, Zhang G, Zhang H, Wang Q, Li Q, Guo H, Li Y, Liu C. Ultrafast Dynamics Across Pressure-Induced Electronic State Transitions, Fluorescence Quenching, and Bandgap Evolution in CsPbBr 3 Quantum Dots. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308016. [PMID: 38308192 PMCID: PMC11005694 DOI: 10.1002/advs.202308016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/17/2024] [Indexed: 02/04/2024]
Abstract
This work investigates the impact of pressure on the structural, optical properties, and electronic structure of CsPbBr3 quantum dots (QDs) using steady-state photoluminescence, steady-state absorption, and femtosecond transient absorption spectroscopy, reaching a maximum pressure of 3.38 GPa. The experimental results indicate that CsPbBr3 QDs undergo electronic state (ES) transitions from ES-I to ES-II and ES-II to ES-III at 0.38 and 1.08 GPa, respectively. Intriguingly, a mixed state of ES-II and ES-III is observed within the pressure range of 1.08-1.68 GPa. The pressure-induced fluorescence quenching in ES-II is attributed to enhanced defect trapping and reduced radiative recombination. Above 1.68 GPa, fluorescence vanishes entirely, attributed to the complete phase transformation from ES-II to ES-III in which radiative recombination becomes non-existent. Notably, owing to stronger quantum confinement effects, CsPbBr3 QDs exhibit an impressive bandgap tuning range of 0.497 eV from 0 to 2.08 GPa, outperforming nanocrystals by 1.4 times and bulk counterparts by 11.3 times. Furthermore, this work analyzes various carrier dynamics processes in the pressure-induced bandgap evolution and electron state transitions, and systematically studies the microphysical mechanisms of optical properties in CsPbBr3 QDs under pressure, offering insights for optimizing optical properties and designing novel materials.
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Affiliation(s)
- Lin Chen
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Ya Chu
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Xiaxia Qin
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Zhijian Gao
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Guozhao Zhang
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Haiwa Zhang
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Qinglin Wang
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Qian Li
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
| | - Haizhong Guo
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052P. R. China
| | - Yinwei Li
- Laboratory of Quantum Functional Materials Design and ApplicationSchool of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou221116P. R. China
| | - Cailong Liu
- School of Physics Science & Information TechnologyLiaocheng UniversityLiaocheng252059P. R. China
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5
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Niu G, Jiang J, Wang X, Che L, Sui L, Wu G, Yuan K, Yang X. Time-Resolved Dynamics of Metal Halide Perovskite under High Pressure: Recent Progress and Challenges. J Phys Chem Lett 2024; 15:1623-1635. [PMID: 38306470 DOI: 10.1021/acs.jpclett.3c03548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
Metal halide perovskites have garnered significant attention in the scientific community for their promising applications in optoelectronic devices. The application of pressure engineering, a viable technique, has played a crucial role in substantially improving the optoelectronic characteristics of perovskites. Despite notable progress in understanding ground-state structural changes under high pressure, a comprehensive exploration of excited-state dynamics influencing luminescence remains incomplete. This Perspective delves into recent advances in time-resolved dynamics studies of photoexcited metal halide perovskites under high pressure. With a focus on the intricate interplay between structural alterations and electronic properties, we investigate electron-phonon interactions, carrier transport mechanisms, and the influential roles of self-trapped excitons (STEs) and coherent phonons in luminescence. However, significant challenges persist, notably the need for more advanced measurement techniques and a deeper understanding of the phenomena induced by high pressure in perovskites.
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Affiliation(s)
- Guangming Niu
- Marine Engineering College, Dalian Maritime University, Dalian 116026, P. R. China
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Jutao Jiang
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023, P. R. China
- University of the Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xiaowei Wang
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023, P. R. China
- University of the Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Li Che
- Department of Physics School of Science, Dalian Maritime University, Dalian 116026, P. R. China
| | - Laizhi Sui
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Guorong Wu
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Kaijun Yuan
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023, P. R. China
- University of the Chinese Academy of Sciences, Beijing 100039, P. R. China
- Hefei National Laboratory, Hefei 230088, China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road, Dalian 116023, P. R. China
- Hefei National Laboratory, Hefei 230088, China
- Department of Chemistry College of Science, Southern University of Science and Technology, Shenzhen 518055, P. R. China
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6
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Wang CW, Oyeka EE, Altman AB, Son DH. Effects of Pressure on Exciton Absorption and Emission in Strongly Quantum-Confined CsPbBr 3 Quantum Dots and Nanoplatelets. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:2062-2069. [PMID: 38352853 PMCID: PMC10860125 DOI: 10.1021/acs.jpcc.3c08029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 02/16/2024]
Abstract
Soft lattices of metal halide perovskite (MHP) nanocrystals (NCs) are considered responsible for many of their optical properties associated with excitons, which are often distinct from other semiconductor NCs. Earlier studies of MHP NCs upon compression revealed how structural changes and the resulting changes in the optical properties such as the bandgap can be induced at relatively low pressures. However, the pressure response of the exciton transition itself in MHP NCs remains relatively poorly understood due to limitations inherent to studying weakly or nonconfined NCs in which exciton absorption peaks are not well-separated from the continuum interband transition. Here, we investigated the pressure response of the absorbing and emitting transitions of excitons using strongly quantum-confined CsPbBr3 quantum dots (QDs) and nanoplatelets (NPLs), which both exhibit well-defined exciton absorption peaks. Notably, the reversible vanishing and recovery of the exciton absorption accompanied by reversible quenching and recovery of the emission were observed in both QDs and NPLs, resulting from the reversible pressure modulation of the exciton oscillator strength. Furthermore, CsPbBr3 NPLs exhibited irreversible pressure-induced creation of trap states at low pressures (∼0.1 GPa) responsible for trapped exciton emission that developed on the time scale of ∼10 min, while the reversible pressure response of the absorbing exciton transition was maintained. These findings shed light on the diverse effects the application of force has on the absorbing and emitting exciton transitions in MHP NCs, which are important for their application as excitonic light emitters in high-pressure environments.
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Affiliation(s)
- Chih-Wei Wang
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Ebube E. Oyeka
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Alison B. Altman
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Dong Hee Son
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
- Department
of Physics and Astronomy, Texas A&M
University, College Station, Texas 77843, United States
- Center
for Nanomedicine, Institute for Basic Science and Graduate Program
of Nano Biomedical Engineering, Advanced Science Institute, Yonsei University, Seoul 03722, Republic of Korea
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7
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Ren B, Xu J, Liu C. Rapid and Practical Synthesis of gem-Dibromoalkanes from Aldehydes by Tribromide Reagent. Chem Asian J 2024:e202301087. [PMID: 38183358 DOI: 10.1002/asia.202301087] [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: 12/01/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 01/08/2024]
Abstract
gem-Dibromoalkanes are important synthetic building block in organic chemistry, but their preparation is still troublesome. Herein, we have developed a simple and practical protocol for the synthesis of gem-dibromoalkanes from aldehydes using tetrabutylammonium tribromide and triphenyl phosphite. A variety of alkyl and aromatic aldehydes can be transformed into the corresponding products within 10 minutes. This protocol is also applicable to alcohols, and the configuration of chiral alcohol is inverted during the process with excellent enantiopurity.
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Affiliation(s)
- Bowen Ren
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jianeng Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Chao Liu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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8
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Xu J, Zhang W, Lv P, Li F, Zhan X, Zhang Y, Liu X. Improved Fluorescence and Photoelectrical Properties of CsPbBr 3 by Constructing Heterojunctions under Pressure. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305870. [PMID: 37705123 DOI: 10.1002/smll.202305870] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/06/2023] [Indexed: 09/15/2023]
Abstract
All-inorganic cesium lead bromide quantum dots (CsPbBr3 -QD) compounds are potential candidates for optoelectronic devices, because of their excellent fluorescence luminescence and thermal stability. However, the many heterojunction interfaces and large band gap induce the low power conversion efficiency in the CsPbBr3 -QD heterojunction, limiting its practical applications. Hereby, in combination with the pressure regulation and TiO2 /CsPbBr3 -QD heterojunction, the interface interaction within the heterojunction can be enhanced and the band gap can be narrowed. The pressure-induced O─Ti─O bond softening and PbBr6 octahedron stiffening at the interface region significantly enhance the interface interactions that are favorable to the carrier transport. Compared with CsPbBr3 -QD, the atomic interaction between Pb and Br of TiO2 /CsPbBr3 -QD heterojunction can be dramatically enhanced at high pressures, leading to increased band gap narrowing rate by two times, which is useful to widen the absorption spectrum. The fluorescence intensity increases by two times. Compression increases the photocurrent and maintains it after the pressure is released, which is due to the enhanced interface interaction induced by the high pressure. The findings provide new opportunities to adjust the physical properties of perovskite heterogeneous structures, and have important applications in the field of new-generation photovoltaic devices.
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Affiliation(s)
- Jie Xu
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Wenhu Zhang
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Pin Lv
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
- Advanced Research Institute of Multidisciplinary Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Fengjiao Li
- MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, 102249, China
| | - Xinhui Zhan
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima, Hiroshima, 739-8526, Japan
| | - Yongsheng Zhang
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
- Advanced Research Institute of Multidisciplinary Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Xiaobing Liu
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
- Advanced Research Institute of Multidisciplinary Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
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9
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Nakagawa T, Ding Y, Bu K, Lü X, Liu H, Moliterni A, Popović J, Mihalik M, Jagličić Z, Mihalik M, Vrankić M. Photophysical Behavior of Triethylmethylammonium Tetrabromoferrate(III) under High Pressure. Inorg Chem 2023; 62:19527-19541. [PMID: 38044824 DOI: 10.1021/acs.inorgchem.3c02607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The pressure-induced properties of hybrid organic-inorganic ferroelectrics (HOIFs) with tunable structures and selectable organic and inorganic components are important for device fabrication. However, given the structural complexity of polycrystalline HOIFs and the limited resolution of pressure data, resolving the structure-property puzzle has so far been the exception rather than the rule. With this in mind, we present a collection of in situ high-pressure data measured for triethylmethylammonium tetrabromoferrate(III), ([N(C2H5)3CH3][FeBr4]) (EMAFB) by unraveling its flexible physical and photophysical behavior up to 80 GPa. Pressure-driven X-ray diffraction and Raman spectroscopy disclose its soft and reversible structural distortion, creating room for delicate band gap modulation. During compression, orange turns dark red at ∼2 GPa, and further compression results in piezochromism, leading to opaque black, while decompressed EMAFB appears in an orange hue. Assuming that the mechanical softness of EMAFB is the basis for reversible piezochromic control, we present alternations in the electronic landscape leading to a 1.22 eV band narrowing at 20.3 GPa while maintaining the semiconducting character at 72 GPa. EMAFB exhibits an emission enhancement, manifested by an increase of photoluminescence up to 17.3 GPa, correlating with the onsets of structural distortion and amorphization. The stimuli-responsive behavior of EMAFB, exhibiting stress-activated modification of the electronic structure, can enrich the physical library of HOIFs suitable for pressure-sensing technologies.
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Affiliation(s)
- Takeshi Nakagawa
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Yang Ding
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Kejun Bu
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Xujie Lü
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Haozhe Liu
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Anna Moliterni
- Institute of Crystallography (IC)-CNR, Via Amendola 122/O, 70126 Bari, Italy
| | - Jasminka Popović
- Division of Materials Physics, Rud̵er Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | - Marian Mihalik
- Institute of Experimental Physics, Watsonova 47, 040 01 Košice, Slovak Republic
| | - Zvonko Jagličić
- Institute of Mathematics, Physics and Mechanics, Jadranska 19, 1000 Ljubljana, Slovenia
- Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia
| | - Matúš Mihalik
- Institute of Experimental Physics, Watsonova 47, 040 01 Košice, Slovak Republic
| | - Martina Vrankić
- Division of Materials Physics, Rud̵er Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
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10
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Gao R, Kang J. Unusual Band Gap Bowing in CsCd xPb (1-x)Br 3 Alloys Due to a Chemical Mismatch. J Phys Chem Lett 2023; 14:10670-10676. [PMID: 38031666 DOI: 10.1021/acs.jpclett.3c02813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
In this work, the band structure of CsCdxPb1-xBr3 alloys is investigated through first-principles calculations. An unusual upward band gap bowing is revealed, which is consistent with the experimental observations of the blue-shifted gap in Cd doped CsPbBr3. The gap bowing is found to be mainly contributed to by the conduction band minimum. Based on symmetry analysis, it is demonstrated that, at the Pb-rich or Cd-rich regime, the hybridization between the Pb(6p)-driven and Cd(5s)-driven conduction bands is strongly suppressed due to their different symmetries. Such a chemical mismatch leads to an almost independent evolution of the Pb(6p) and Cd(5s) bands. Then, a model of band shrinking and broadening is proposed to explain upward gap bowing. The results highlight the critical role of symmetry in determining the electronic properties of alloys consisting of materials with distinct band edge characters.
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Affiliation(s)
- Rui Gao
- Beijing Computational Science Research Center, Beijing 100193, China
| | - Jun Kang
- Beijing Computational Science Research Center, Beijing 100193, China
- Department of Physics, Beijing Normal University, Beijing 100875, China
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11
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Li Q, Xu B, Quan Z. Pressure-Regulated Excitonic Transitions in Emergent Metal Halides. Acc Chem Res 2023; 56:3282-3291. [PMID: 37890133 DOI: 10.1021/acs.accounts.3c00537] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
ConspectusEmergent metal halides are generating significant interest as novel optical materials, and their diverse applications have brought them to the spotlight of chemistry and material science. The optical properties of semiconducting metal halides are fundamentally dominated by excitonic transitions, which refer to the complex processes of excitonic formation, self-trapping, as well as subsequent transitions of intersystem crossing (ISC) and internal conversion (IC). In this regard, high pressure has recently opened a new research dimension to regulate excitonic transitions in metal halides via continuous structural modulations, to understand the intriguing excitonic emissions from a new perspective. In this Account, we aim to rationalize the fundamental strategy for modulating and optimizing the optical properties of metal halides based on delicate exciton regulation via high-pressure method. First, the band gaps of metal halides that are directly related to the efficiency of excitonic formation, are accurately modulated through contraction, distortion, and destruction of metal-halogen polyhedra under compression. Then, considerable enhancement of self-trapped exciton emission is demonstrated by inducing proper polyhedral distortions via high-pressure method. Furthermore, the emission energy of metal halides could also be controllably and widely tuned through pressure-modulated excitonic transitions. Upon compression on different metal halides, excitonic IC is promoted with sufficient polyhedral distortions, and different sets of ISC could also be achieved. In the end, we emphasize the significance of high-pressure investigations in uncovering the complex excitonic transitions in emergent metal halides and predicting novel metal halides with desired optical properties at ambient conditions. It is expected that these discussions could inspire researchers in different fields to perform interdisciplinary high-pressure studies on novel functional materials.
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Affiliation(s)
- Qian Li
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, Shandong 252000, P. R. China
| | - Bin Xu
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
| | - Zewei Quan
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
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12
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Zhang L, Li S, Sun H, Fang Y, Wang Y, Wang K, Jiang H, Sui L, Wu G, Yuan K, Zou B. Manipulating Lone-Pair-Driven Luminescence in 0D Tin Halides by Pressure-Tuned Stereochemical Activity from Static to Dynamic. Angew Chem Int Ed Engl 2023; 62:e202311912. [PMID: 37794619 DOI: 10.1002/anie.202311912] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/02/2023] [Accepted: 10/04/2023] [Indexed: 10/06/2023]
Abstract
The excellent luminescence properties and structural dynamics driven by the stereoactivity of the lone pair in a variety of low-dimensional ns2 metal halides have attracted growing investigations for optoelectronic applications. However, the structural and photophysical aspects of the excited state associated with the lone pair expression are currently open questions. Herein, zero-dimensional Sn-based halides with static stereoactive 5 s2 lone pairs are selected as a model system to understand the correlations between the distinctive lone pair expression and the excited-state structural relaxation and charge carrier dynamics by continuous lattice manipulation. Lattice compression drives 5 s2 lone pair active switching and self-trapped exciton (STE) redistribution by suppressing excited-state structural deformation of the isolated SnBr4 2- units. Our results demonstrate that the static expression of the 5 s2 lone pair results in a red broadband triplet STE emission with a large Stokes shift, while its dynamic expression creates a sky-blue narrowband emission dominated by the radiative recombination of singlet STEs. Our findings and the photophysical mechanism proposed highlight the stereochemical effects of lone pair expression in controlling light emission properties and offer constructive guidelines for tuning the optoelectronic properties in diverse ns2 metal halides.
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Affiliation(s)
- Long Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Shuoxue Li
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Huaiyang Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yuanyuan Fang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252000, China
| | - Yonggang Wang
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Kai Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252000, China
| | - Hong Jiang
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Laizhi Sui
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Guorong Wu
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Kaijun Yuan
- State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
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13
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Singh S, Nayak PK, Tretiak S, Ghosh D. Composition Dependent Strain Engineering of Lead-Free Halide Double Perovskite: Computational Insights. J Phys Chem Lett 2023; 14:9479-9489. [PMID: 37831811 DOI: 10.1021/acs.jpclett.3c02249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
The critical photophysical properties of lead-free halide double perovskites (HDPs) must be substantially improved for various applications. In this regard, strain engineering is a powerful tool for enhancing optoelectronic performance with precise control. Here, we employ ab initio simulations to investigate the impact of mild compressive and tensile strains on the photophysics of Cs2AgB'X6 (B' = Sb, Bi; X = Cl, Br) perovskites. Depending on the pnictogen and halide atoms, the band gap and band edge positions of HDPs can be tuned to a significant extent by controlling the applied external strain. Cs2AgSbBr6 has the most substantial strain response under structural perturbations. The subtle electronic interactions among the participating orbitals and the band dispersion at the edge states are enhanced under compressive strain, reducing the carrier effective masses. The exciton binding energies for these Br-based HDPs are in the range 59-78 meV and weaken in the compressed lattices, suggesting improved free carrier generation. Overall, the study emphasizes the potential of lattice strain engineering to boost the photophysical properties of HDPs that can ultimately improve their optoelectronic performance.
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Affiliation(s)
- Sarika Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Pabitra Kumar Nayak
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Sergei Tretiak
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Dibyajyoti Ghosh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
- Department of Materials Science and Engineering, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
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14
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Ardimas, Pakornchote T, Sukmas W, Chatraphorn S, Clark SJ, Bovornratanaraks T. Phase transformations and vibrational properties of hybrid organic-inorganic perovskite MAPbI 3 bulk at high pressure. Sci Rep 2023; 13:16854. [PMID: 37803050 PMCID: PMC10558557 DOI: 10.1038/s41598-023-43020-1] [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: 05/07/2023] [Accepted: 09/18/2023] [Indexed: 10/08/2023] Open
Abstract
The structural stability and internal properties of hybrid organic-inorganic perovskites (HOIPs) have been widely investigated over the past few years. The interplay between organic cations and inorganic framework is one of the prominent features. Herein we report the evolution of Raman modes under pressure in the hybrid organic-inorganic perovskite MAPbI[Formula: see text] by combining the experimental approach with the first-principles calculations. A bulk MAPbI[Formula: see text] single crystal was synthesized via inverse temperature crystallization (ITC) technique and characterized by Raman spectroscopy, while the diamond anvil cells (DACs) was employed to compress the sample. The classification and behaviours of their Raman modes are presented. At ambient pressure, the vibrations of inorganic PbI[Formula: see text] octahedra and organic MA dominate at a low-frequency range (60-760 cm[Formula: see text]) and a fingerprint range (900-1500 cm[Formula: see text]), respectively. The applied pressure exhibits two significant changes in the Raman spectrum and indicates of phase transition. The results obtained from both experiment and calculations of the second phase at 3.26 GPa reveal that the internal vibration intensity of the PbI[Formula: see text] octahedra (< 110 cm[Formula: see text]) reduces as absences of MA libration (150-270 cm[Formula: see text]) and internal vibration of MA (450-750 cm[Formula: see text]). Furthermore, the hydrogen interactions around 1300 cm[Formula: see text] remain strong high pressure up to 5.34 GPa.
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Affiliation(s)
- Ardimas
- Department of Nanoscience and Technology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand
- Extreme Conditions Physics Research Laboratory (ECPRL) and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Teerachote Pakornchote
- Extreme Conditions Physics Research Laboratory (ECPRL) and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok, 10400, Thailand
| | - Wiwittawin Sukmas
- Extreme Conditions Physics Research Laboratory (ECPRL) and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Rd., Pathumwan, Bangkok, 10330, Thailand
| | - Sojiphong Chatraphorn
- Extreme Conditions Physics Research Laboratory (ECPRL) and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok, 10400, Thailand
| | - Stewart J Clark
- Department of Physics, Faculty of Science, Durham University, Durham, DH1 3LE, UK
| | - Thiti Bovornratanaraks
- Department of Nanoscience and Technology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand.
- Extreme Conditions Physics Research Laboratory (ECPRL) and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
- Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok, 10400, Thailand.
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15
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Meng L, Vu TV, Criscenti LJ, Ho TA, Qin Y, Fan H. Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles. Chem Rev 2023; 123:10206-10257. [PMID: 37523660 DOI: 10.1021/acs.chemrev.3c00169] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Using compressive mechanical forces, such as pressure, to induce crystallographic phase transitions and mesostructural changes while modulating material properties in nanoparticles (NPs) is a unique way to discover new phase behaviors, create novel nanostructures, and study emerging properties that are difficult to achieve under conventional conditions. In recent decades, NPs of a plethora of chemical compositions, sizes, shapes, surface ligands, and self-assembled mesostructures have been studied under pressure by in-situ scattering and/or spectroscopy techniques. As a result, the fundamental knowledge of pressure-structure-property relationships has been significantly improved, leading to a better understanding of the design guidelines for nanomaterial synthesis. In the present review, we discuss experimental progress in NP high-pressure research conducted primarily over roughly the past four years on semiconductor NPs, metal and metal oxide NPs, and perovskite NPs. We focus on the pressure-induced behaviors of NPs at both the atomic- and mesoscales, inorganic NP property changes upon compression, and the structural and property transitions of perovskite NPs under pressure. We further discuss in depth progress on molecular modeling, including simulations of ligand behavior, phase-change chalcogenides, layered transition metal dichalcogenides, boron nitride, and inorganic and hybrid organic-inorganic perovskites NPs. These models now provide both mechanistic explanations of experimental observations and predictive guidelines for future experimental design. We conclude with a summary and our insights on future directions for exploration of nanomaterial phase transition, coupling, growth, and nanoelectronic and photonic properties.
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Affiliation(s)
- Lingyao Meng
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87106, United States
| | - Tuan V Vu
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Louise J Criscenti
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Tuan A Ho
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Yang Qin
- Department of Chemical & Biomolecular Engineering, Institute of Materials Science, University of Connecticut, Mansfield, Connecticut 06269, United States
| | - Hongyou Fan
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
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16
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Tian X, Fang Q, Long R, Fang WH. Great Influence of Pressure and Isotope Effects on Nonradiative Charge Loss in Hybrid Organic-Inorganic Perovskites. J Phys Chem Lett 2023; 14:7134-7140. [PMID: 37534991 DOI: 10.1021/acs.jpclett.3c01776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
The intrinsic softness of hybrid organic-inorganic perovskites (HOIPs) allows their lattice and optoelectronic performance to be tunable to external pressure. Using nonadiabatic (NA) molecular dynamics, we demonstrate that a mild pressure accelerates hot electron relaxation and suppresses nonradiative electron-hole recombination in CH3NH3PbI3. Both processes are governed by NA coupling, which is enhanced between the electronic states of the quasi-continuous bands while is decreased between the band-edge states by reducing the electron-hole wave function overlap. Hydrogen/deuterium isotope exchange alleviates the pressure-induced NA coupling by increasing lattice rigidity and decreasing wave function overlap, slowing down both the hot electron relaxation and electron-hole recombination processes. The simulated time scales of sub-3 ps for hot electron relaxation and half nanoseconds for recombination agree well with the experiments. The study suggests that the isotope exchange can mitigate the pressure-caused fast losses of hot electrons and further prolong the charge carrier lifetime in HOIPs.
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Affiliation(s)
- Xuesong Tian
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
| | - Qiu Fang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
| | - Wei-Hai Fang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
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17
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Parrey I, Bilican F, Kursun C, Kart HH, Parrey KA. Mechanical Stability and Energy Gap Evolution in Cs-Based Ag, Bi Halide Double Perovskites under High Pressure: A Theoretical DFT Approach. ACS OMEGA 2023; 8:26577-26589. [PMID: 37521658 PMCID: PMC10373459 DOI: 10.1021/acsomega.3c03469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/03/2023] [Indexed: 08/01/2023]
Abstract
Due to their intrinsic stability and reduced toxicity, lead-free halide double perovskite semiconductors have become potential alternatives to lead-based perovskites. In the present study, we used density functional theory simulations to investigate the mechanical stability and band gap evolution of double perovskites Cs2AgBiX6 (X = Cl and Br) under an applied pressure. To investigate the pressure-dependent properties, the hydrostatic pressure induced was in the range of 0-100 GPa. The mechanical behaviors indicated that the materials under study are both ductile and mechanically stable and that the induced pressure enhances the ductility. As a result of the induced pressure, the covalent bonds transformed into metallic bonds with a reduction in bond lengths. Electronic properties, energy bands, and electronic density of states were obtained with the hybrid HSE06 functional, including spin-orbit coupling (HSE06 + SOC) calculations. The electronic structure study revealed that Cs2AgBiX6 samples behave as X-Γ indirect gap semiconductors, and the gap reduces with the applied pressure. The pressure-driven samples ultimately transform from the semiconductor to a metallic phase at the given pressure range. Also, the calculations demonstrated that the applied pressure and spin-orbit coupling of the states pushed VBM and CBM toward the Fermi level which caused the evolution of the band gap. The relationship between the structure and band gap demonstrates the potential for designing lead-free inorganic perovskites for optoelectronic applications, including solar cells as well as X-ray detectors.
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Affiliation(s)
- Ismahan
Duz Parrey
- Science
Faculty, Department of Physics, Pamukkale
University, Denizli 20160, Türkiye
| | - Fuat Bilican
- Science
Faculty, Department of Physics, Pamukkale
University, Denizli 20160, Türkiye
| | - Celal Kursun
- Department
of Physics, Faculty of Sciences, Kahramanmaras
Sutcu Imam University, Kahramanmaras 46040, Turkey
| | - Hasan Huseyin Kart
- Science
Faculty, Department of Physics, Aydın
Adnan Menderes University, Aydın 09010, Türkiye
| | - Khursheed Ahmad Parrey
- Department
of Physics, Faculty of Sciences, Kahramanmaras
Sutcu Imam University, Kahramanmaras 46040, Turkey
- Faculty
of Natural Science, Department of Physics, Jamia Millia Islamia, New Delhi 110025, India
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18
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Pienia Żek A, Dybała F, Polak MP, Przypis Ł, Herman AP, Kopaczek J, Kudrawiec R. Bandgap Pressure Coefficient of a CH 3NH 3PbI 3 Thin Film Perovskite. J Phys Chem Lett 2023:6470-6476. [PMID: 37436849 PMCID: PMC10364135 DOI: 10.1021/acs.jpclett.3c01258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Recent scientific interest in examining the bandgap evolution of a MAPbI3 hybrid perovskite by applying hydrostatic pressure has mostly focused on a room-temperature tetragonal phase. In contrast, the pressure response of a low-temperature orthorhombic phase (OP) of MAPbI3 has not been explored and understood. In this research, we investigate for the first time how hydrostatic pressure alters the electronic landscape of the OP of MAPbI3. Pressure studies using photoluminescence combined with calculations within density functional theory at zero temperature allowed us to identify the main physical factors affecting the bandgap evolution of the OP of MAPbI3. The negative bandgap pressure coefficient was found to be strongly dependent on the temperature (α120K = -13.3 ± 0.1 meV/GPa, α80K = -29.8 ± 0.1 meV/GPa, and α40K = -36.3 ± 0.1 meV/GPa). Such dependence is related to the changes in the Pb-I bond length and geometry in the unit cell as the atomic configuration approaches the phase transition as well as the increasing phonon contribution to octahedral tilting as the temperature increases.
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Affiliation(s)
- Agnieszka Pienia Żek
- Department of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Filip Dybała
- Department of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Maciej P Polak
- Materials Science and Engineering Department, University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
| | - Łukasz Przypis
- Department of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
- Saule Research Institute, Wroclaw Technology Park, 11 Dunska Street, Sigma Building, 54-130 Wrocław, Poland
| | - Artur P Herman
- Department of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Jan Kopaczek
- Department of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Robert Kudrawiec
- Department of Semiconductor Materials Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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19
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Liang A, Turnbull R, Popescu C, Fernandez-Guillen I, Abargues R, Boix PP, Errandonea D. Pressure-Induced Phase Transition versus Amorphization in Hybrid Methylammonium Lead Bromide Perovskite. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:12821-12826. [PMID: 37435409 PMCID: PMC10332429 DOI: 10.1021/acs.jpcc.3c03263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/06/2023] [Indexed: 07/13/2023]
Abstract
The crystal structure of the CH3NH3PbBr3 perovskite has been investigated under high-pressure conditions by synchrotron-based powder X-ray diffraction. We found that after the previously reported phase transitions in CH3NH3PbBr3 (Pm3̅m→Im3̅→Pmn21), which occur below 2 GPa, there is a third transition to a crystalline phase at 4.6 GPa. This transition is reported here for the first time contradicting previous studies, which reported amorphization of CH3NH3PbBr3 between 2.3 and 4.6 GPa. Our X-ray diffraction measurements show that CH3NH3PbBr3 remains crystalline up to at least 7.6 GPa, the highest pressure covered by experiments. The new high-pressure phase is also described by the space group Pmn21; however, the transition involves abrupt changes in the unit-cell parameters and a 3% decrease of the unit-cell volume. Our conclusions are confirmed by optical-absorption experiments, by visual observations, and by the fact that pressure-induced changes up to 10 GPa are reversible. The optical studies also allow for the determination of the pressure dependence of the band-gap energy, which is discussed using the structural information obtained from X-ray diffraction.
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Affiliation(s)
- Akun Liang
- Departamento
de Física Aplicada-ICMUV-MALTA Consolider Team, Universitat de València, c/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
- Centre
for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - Robin Turnbull
- Departamento
de Física Aplicada-ICMUV-MALTA Consolider Team, Universitat de València, c/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Catalin Popescu
- CELLS-ALBA
Synchrotron Light Facility, Cerdanyola, Barcelona 08290, Spain
| | - Ismael Fernandez-Guillen
- Institut
de Ciència dels Materials, Universidad
de Valencia, C/J. Beltran 2, 46980 Paterna, Valencia, Spain
| | - Rafael Abargues
- Institut
de Ciència dels Materials, Universidad
de Valencia, C/J. Beltran 2, 46980 Paterna, Valencia, Spain
| | - Pablo P. Boix
- Institut
de Ciència dels Materials, Universidad
de Valencia, C/J. Beltran 2, 46980 Paterna, Valencia, Spain
| | - Daniel Errandonea
- Departamento
de Física Aplicada-ICMUV-MALTA Consolider Team, Universitat de València, c/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
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20
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Maity S, Verma S, Ramaniah LM, Srinivasan V. Stabilizing Polar Domains in MAPbBr 3 via the Hydrostatic Pressure-Induced Liquid Crystal-like Transition. J Phys Chem Lett 2023:5497-5504. [PMID: 37289825 DOI: 10.1021/acs.jpclett.3c01152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Pressure-induced phases of MAPbBr3 were investigated at room temperature in the range of 0-2.8 GPa by ab initio molecular dynamics. Two structural transitions at 0.7 GPa (cubic → cubic) and 1.1 GPa (cubic → tetragonal) involved both the inorganic host (lead bromide) and the organic guest (MA). MA dipoles behave like a liquid crystal undergoing isotropic → isotropic and isotropic → oblate nematic transitions as pressure confines their orientational fluctuations to a crystal plane. Beyond 1.1 GPa, the MA ions lie alternately along two orthogonal directions in the plane forming stacks perpendicular to it. However, the molecular dipoles are statically disordered, leading to stable polar and antipolar MA domains in each stack. H-Bond interactions, which primarily mediate host-guest coupling, facilitate the static disordering of MA dipoles. Interestingly, high pressures suppress CH3 torsional motion, emphasizing the role of C-H···Br bonds in the transitions.
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Affiliation(s)
- Sayan Maity
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
| | - Suraj Verma
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
| | - Lavanya M Ramaniah
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Varadharajan Srinivasan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
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21
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Xu K, Pérez-Fidalgo L, Charles BL, Weller MT, Alonso MI, Goñi AR. Using pressure to unravel the structure-dynamic-disorder relationship in metal halide perovskites. Sci Rep 2023; 13:9300. [PMID: 37291135 DOI: 10.1038/s41598-023-36501-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023] Open
Abstract
The exceptional optoelectronic properties of metal halide perovskites (MHPs) are presumed to arise, at least in part, from the peculiar interplay between the inorganic metal-halide sublattice and the atomic or molecular cations enclosed in the cage voids. The latter can exhibit a roto-translative dynamics, which is shown here to be at the origin of the structural behavior of MHPs as a function of temperature, pressure and composition. The application of high hydrostatic pressure allows for unraveling the nature of the interaction between both sublattices, characterized by the simultaneous action of hydrogen bonding and steric hindrance. In particular, we find that under the conditions of unleashed cation dynamics, the key factor that determines the structural stability of MHPs is the repulsive steric interaction rather than hydrogen bonding. Taking as example the results from pressure and temperature-dependent photoluminescence and Raman experiments on MAPbBr[Formula: see text] but also considering the pertinent MHP literature, we provide a general picture about the relationship between the crystal structure and the presence or absence of cationic dynamic disorder. The reason for the structural sequences observed in MHPs with increasing temperature, pressure, A-site cation size or decreasing halide ionic radius is found principally in the strengthening of the dynamic steric interaction with the increase of the dynamic disorder. In this way, we have deepened our fundamental understanding of MHPs; knowledge that could be coined to improve performance in future optoelectronic devices based on this promising class of semiconductors.
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Affiliation(s)
- Kai Xu
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Luis Pérez-Fidalgo
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Bethan L Charles
- Department of Chemistry and Centre for Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath, BA2 7AY, UK
- Department of Mechanical Engineering, Queens Building, University of Bristol, Bristol, BS8 1TR, UK
| | - Mark T Weller
- Department of Chemistry and Centre for Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath, BA2 7AY, UK
- Department of Chemistry, Cardiff University, Wales, CF10 3AT, UK
| | - M Isabel Alonso
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
| | - Alejandro R Goñi
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain.
- ICREA, Passeig Lluís Companys 23, 08010, Barcelona, Spain.
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22
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Vukovic O, Folpini G, Wong EL, Leoncino L, Terraneo G, Albaqami MD, Petrozza A, Cortecchia D. Structural effects on the luminescence properties of CsPbI 3 nanocrystals. NANOSCALE 2023; 15:5712-5719. [PMID: 36880499 PMCID: PMC10035506 DOI: 10.1039/d2nr06345j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Metal halide perovskite nanocrystals (NCs) are promising for photovoltaic and light-emitting applications. Due to the softness of their crystal lattice, structural modifications have a critical impact on their optoelectronic properties. Here we investigate the size-dependent optoelectronic properties of CsPbI3 NCs ranging from 7 to 17 nm, employing temperature and pressure as thermodynamic variables to modulate the energetics of the system and selectively tune the interatomic distances. By temperature-dependent photoluminescence spectroscopy, we have found that luminescence quenching channels exhibit increased non-radiative losses and weaker exciton-phonon coupling in bigger particles, in turn affecting the luminescence efficiency. Through pressure-dependent measurements up to 2.5 GPa, supported by XRD characterization, we revealed a NC-size dependent solid-solid phase transition from the γ-phase to the δ-phase. Importantly, the optical response to these structural changes strongly depends on the size of the NC. Our findings provide an interesting guideline to correlate the size and structural and optoelectronic properties of CsPbI3 NCs, important for engineering the functionalities of this class of soft semiconductors.
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Affiliation(s)
- Olivera Vukovic
- Centre for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, Via Pascoli 70, Milan 20133, Italy.
- Molecular Materials and Nanosystems & Institute for Complex Molecular Systems, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
- Université de Pau & Pays Adour, CNRS, IPREM UMR 5254, 2 Avenue du Président Angot, Pau F-64053, France
| | - Giulia Folpini
- Centre for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, Via Pascoli 70, Milan 20133, Italy.
| | - E Laine Wong
- Centre for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, Via Pascoli 70, Milan 20133, Italy.
| | - Luca Leoncino
- Electron Microscopy Facility, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Giancarlo Terraneo
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131 Milano, Italy
| | - Munirah D Albaqami
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Annamaria Petrozza
- Centre for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, Via Pascoli 70, Milan 20133, Italy.
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Daniele Cortecchia
- Centre for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, Via Pascoli 70, Milan 20133, Italy.
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23
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Szostak R, de Souza Gonçalves A, de Freitas JN, Marchezi PE, de Araújo FL, Tolentino HCN, Toney MF, das Chagas Marques F, Nogueira AF. In Situ and Operando Characterizations of Metal Halide Perovskite and Solar Cells: Insights from Lab-Sized Devices to Upscaling Processes. Chem Rev 2023; 123:3160-3236. [PMID: 36877871 DOI: 10.1021/acs.chemrev.2c00382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
The performance and stability of metal halide perovskite solar cells strongly depend on precursor materials and deposition methods adopted during the perovskite layer preparation. There are often a number of different formation pathways available when preparing perovskite films. Since the precise pathway and intermediary mechanisms affect the resulting properties of the cells, in situ studies have been conducted to unravel the mechanisms involved in the formation and evolution of perovskite phases. These studies contributed to the development of procedures to improve the structural, morphological, and optoelectronic properties of the films and to move beyond spin-coating, with the use of scalable techniques. To explore the performance and degradation of devices, operando studies have been conducted on solar cells subjected to normal operating conditions, or stressed with humidity, high temperatures, and light radiation. This review presents an update of studies conducted in situ using a wide range of structural, imaging, and spectroscopic techniques, involving the formation/degradation of halide perovskites. Operando studies are also addressed, emphasizing the latest degradation results for perovskite solar cells. These works demonstrate the importance of in situ and operando studies to achieve the level of stability required for scale-up and consequent commercial deployment of these cells.
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Affiliation(s)
- Rodrigo Szostak
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-100 Campinas, SP, Brazil
| | - Agnaldo de Souza Gonçalves
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
- Gleb Wataghin Institute of Physics, University of Campinas (UNICAMP), 13083-859 Campinas, SP, Brazil
| | - Jilian Nei de Freitas
- Center for Information Technology Renato Archer (CTI), 13069-901 Campinas, SP, Brazil
| | - Paulo E Marchezi
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
- Department of Engineering and Physics, Karlstad University, 651 88 Karlstad, Sweden
| | - Francineide Lopes de Araújo
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
| | - Hélio Cesar Nogueira Tolentino
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-100 Campinas, SP, Brazil
| | - Michael F Toney
- Department of Chemical & Biological Engineering, and Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, United States
| | | | - Ana Flavia Nogueira
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
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24
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Li Z, Jia B, Fang S, Li Q, Tian F, Li H, Liu R, Liu Y, Zhang L, Liu S(F, Liu B. Pressure-Tuning Photothermal Synergy to Optimize the Photoelectronic Properties in Amorphous Halide Perovskite Cs 3 Bi 2 I 9. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205837. [PMID: 36581471 PMCID: PMC9951572 DOI: 10.1002/advs.202205837] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/12/2022] [Indexed: 06/17/2023]
Abstract
Effective modification of the structure and properties of halide perovskites via the pressure engineering strategy has attracted enormous interest in the past decade. However, sufficient effort and insights regarding the potential properties and applications of the high-pressure amorphous phase are still lacking. Here, the superior and tunable photoelectric properties that occur in the pressure-induced amorphization process of the halide perovskite Cs3 Bi2 I9 are demonstrated. With increasing pressure, the photocurrent with xenon lamp illumination exhibits a rapid increase and achieves an almost five orders of magnitude increment compared to its initial value. Impressively, a broadband photoresponse from 520 to 1650 nm with an optimal responsivity of 6.81 mA W-1 and fast response times of 95/96 ms at 1650 nm is achieved upon successive compression. The high-gain, fast, broadband, and dramatically enhanced photoresponse properties of Cs3 Bi2 I9 are the result of comprehensive photoconductive and photothermoelectric mechanisms, which are associated with enhanced orbital coupling caused by an increase in BiI interactions in the [BiI6 ]3- cluster, even in the amorphous state. These findings provide new insights for further exploring the potential properties and applications of amorphous perovskites.
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Affiliation(s)
- Zonglun Li
- State Key Laboratory of Superhard MaterialsJilin UniversityChangchun130012P. R. China
| | - Binxia Jia
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119P. R. China
| | - Sixue Fang
- State Key Laboratory of Superhard MaterialsJilin UniversityChangchun130012P. R. China
| | - Quanjun Li
- State Key Laboratory of Superhard MaterialsJilin UniversityChangchun130012P. R. China
| | - Fuyu Tian
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and EngineeringJilin UniversityChangchun130012P. R. China
| | - Haiyan Li
- State Key Laboratory of Superhard MaterialsJilin UniversityChangchun130012P. R. China
| | - Ran Liu
- State Key Laboratory of Superhard MaterialsJilin UniversityChangchun130012P. R. China
| | - Yucheng Liu
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119P. R. China
| | - Lijun Zhang
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and EngineeringJilin UniversityChangchun130012P. R. China
| | - Shengzhong (Frank) Liu
- Key Laboratory of Applied Surface and Colloid ChemistryNational Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119P. R. China
| | - Bingbing Liu
- State Key Laboratory of Superhard MaterialsJilin UniversityChangchun130012P. R. China
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25
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Ke F, Yan J, Matheu R, Niu S, Wolf NR, Yang H, Yin K, Wen J, Lee YS, Karunadasa HI, Mao WL, Lin Y. Quasi-One-Dimensional Metallicity in Compressed CsSnI 3. J Am Chem Soc 2022; 144:23595-23602. [PMID: 36534020 DOI: 10.1021/jacs.2c10884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Low-dimensional metal halides exhibit strong structural and electronic anisotropies, making them candidates for accessing unusual electronic properties. Here, we demonstrate pressure-induced quasi-one-dimensional (quasi-1D) metallicity in δ-CsSnI3. With the application of pressure up to 40 GPa, the initially insulating δ-CsSnI3 transforms to a metallic state. Synchrotron X-ray diffraction and Raman spectroscopy indicate that the starting 1D chain structure of edge-sharing Sn-I octahedra in δ-CsSnI3 is maintained in the high-pressure metallic phase while the SnI6 octahedral chains are distorted. Our experiments combined with first-principles density functional theory calculations reveal that pressure induces Sn-Sn hybridization and enhances Sn-I coupling within the chain, leading to band gap closure and formation of conductive SnI6 distorted octahedral chains. In contrast, the interchain I...I interactions remain minimal, resulting in a highly anisotropic electronic structure and quasi-1D metallicity. Our study offers a high-pressure approach for achieving diverse electronic platforms in the broad family of low-dimensional metal halides.
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Affiliation(s)
- Feng Ke
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.,Department of Geological Sciences, Stanford University, Stanford, California 94305, United States.,State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Jiejuan Yan
- Department of Geological Sciences, Stanford University, Stanford, California 94305, United States
| | - Roc Matheu
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Shanyuan Niu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Nathan R Wolf
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Hong Yang
- Department of Geological Sciences, Stanford University, Stanford, California 94305, United States
| | - Ketao Yin
- School of Physics and Electronic Engineering, Linyi University, Linyi, Shandong 276005, China
| | - Jiajia Wen
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Young S Lee
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.,Department of Applied Physics, Stanford University, Stanford, California 94305, United States
| | - Hemamala I Karunadasa
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.,Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Wendy L Mao
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.,Department of Geological Sciences, Stanford University, Stanford, California 94305, United States
| | - Yu Lin
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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26
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Li Z, Li Q, Li H, Tian F, Du M, Fang S, Liu R, Zhang L, Liu B. Pressure-Tailored Self-Driven and Broadband Photoresponse in PbI 2. SMALL METHODS 2022; 6:e2201044. [PMID: 36351755 DOI: 10.1002/smtd.202201044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Photoelectric devices based on the photothermoelectric (PTE) effect show promising prospects for broadband detection without an external power supply. However, effective strategies are still required to regulate the conversion efficiency of light to heat and electricity. Herein, significantly enhanced photoresponse properties of PbI2 generated from a PTE mechanism via a high-pressure strategy are reported. PbI2 exhibits a stable, fast, self-driven, and broadband photoresponse at ≈980 nm. Intriguingly, the synergy of the photoconductivity and PTE mechanism is conducive to enhancing the photoelectric properties, and extending the detection bandwidth to the optical communication waveband (1650 nm) with an external bias. The dramatically enhanced photoresponse characteristics are attributed to narrowing of the band gap and a significantly decreased resistance, which originate from the enhancement of atomic orbital overlap owing to pressure-induced Pb-I bond contraction. These findings open up a new avenue toward designing self-driven and broadband photoelectric devices.
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Affiliation(s)
- Zonglun Li
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China
| | - Quanjun Li
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China
| | - Haiyan Li
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China
| | - Fuyu Tian
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Mingyang Du
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China
| | - Sixue Fang
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China
| | - Ran Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China
| | - Lijun Zhang
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China
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27
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Ramya K, Mondal A, Gupta DS, Mukhopadhyay DS. Asymmetrical Electrical Performance across Different Planes of Solution-Grown MAPbBr 3 Crystals of mm Dimensions. ACS OMEGA 2022; 7:42138-42145. [PMID: 36440177 PMCID: PMC9685599 DOI: 10.1021/acsomega.2c04681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Throughout a few years, carrier transport studies across HaP single crystals have gained enormous importance for current generation photovoltaic and photodetector research with their superior optoelectronic properties compared to commercially available polycrystalline materials. Utilizing the room-temperature solution-grown method, we synthesized MAPbBr3 crystals and examined their electrical transport properties. Although the X-ray diffraction reveals the cubical nature of the crystals, we have observed anisotropy in the electrical transport behavior and variation in dielectric constant across the three opposite faces of the crystals of mm dimensions. The face with a higher dielectric constant depicts improved parameters from electrical characteristics such as lower trap densities and higher mobility values. We further explore the origin of its anisotropic nature by performing X-ray diffraction on three opposite faces of crystals. Our studies define the specific faces of cuboid-shaped MAPbBr3 crystals for efficient electrical contact in the fabrication of optoelectronic devices.
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Affiliation(s)
- Kunchanapalli Ramya
- Department
of Physics, SRM University—Andhra
Pradesh, Andhra Pradesh522240, India
| | - Arindam Mondal
- Department
of Chemistry, Indian Institute of Technology, Bhilai492015, India
| | - Dr. Satyajit Gupta
- Department
of Chemistry, Indian Institute of Technology, Bhilai492015, India
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28
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Cesium-mediated electron redistribution and electron-electron interaction in high-pressure metallic CsPbI3. Nat Commun 2022; 13:7067. [DOI: 10.1038/s41467-022-34786-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 11/08/2022] [Indexed: 11/19/2022] Open
Abstract
AbstractElectron-phonon coupling was believed to govern the carrier transport in halide perovskites and related phases. Here we demonstrate that electron-electron interaction enhanced by Cs-involved electron redistribution plays a direct and prominent role in the low-temperature electrical transport of compressed CsPbI3 and renders Fermi liquid (FL)-like behavior. By compressing δ-CsPbI3 to 80 GPa, an insulator-semimetal-metal transition occurs, concomitant with the completion of a slow structural transition from the one-dimensional Pnma (δ) phase to a three-dimensional Pmn21 (ε) phase. Deviation from FL behavior is observed upon CsPbI3 entering the metallic ε phase, which progressively evolves into a FL-like state at 186 GPa. First-principles density functional theory calculations reveal that the enhanced electron-electron coupling results from the sudden increase of the 5d state occupation in Cs and I atoms. Our study presents a promising strategy of cationic manipulation for tuning the electronic structure and carrier scattering of halide perovskites at high pressure.
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29
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Tuning Defects in a Halide Double Perovskite with Pressure. J Am Chem Soc 2022; 144:20763-20772. [DOI: 10.1021/jacs.2c08607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Zhang G, Luo Z, Wang H, Deng L, Ding C. SO
2
F
2
Promoted Deoxygenhalogenation from Alcohols: A Practical Method for Preparing Halides. ChemistrySelect 2022. [DOI: 10.1002/slct.202202853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guofu Zhang
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Zijin Luo
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Huimin Wang
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Linfang Deng
- The Third Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou 310014 P. R. China
| | - Chengrong Ding
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
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31
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Liang A, Gonzalez-Platas J, Turnbull R, Popescu C, Fernandez-Guillen I, Abargues R, Boix PP, Shi LT, Errandonea D. Reassigning the Pressure-Induced Phase Transitions of Methylammonium Lead Bromide Perovskite. J Am Chem Soc 2022; 144:20099-20108. [PMID: 36260811 PMCID: PMC10388295 DOI: 10.1021/jacs.2c09457] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The high-pressure crystal structure evolution of CH3NH3PbBr3 (MAPbBr3) perovskite has been investigated by single-crystal X-ray diffraction and synchrotron-based powder X-ray diffraction. Single-crystal X-ray diffraction reveals that the crystal structure of MAPbBr3 undergoes two phase transitions following the space-group sequence: Pm3̅m → Im3̅ → Pmn21, unveiling the occurrence of a nonpolar/polar transition (Im3̅ → Pmn21). The transitions take place at around 0.8 and 1.8 GPa, respectively. This result contradicts the previously reported phase transition sequence: Pm3̅m → Im3̅ →Pnma. In this work, the crystal structures of each of the three phases are determined from single-crystal X-ray diffraction analysis, which is later supported by Rietveld refinement of powder X-ray diffraction patterns. The pressure dependence of the crystal lattice parameters and unit-cell volumes are determined from the two aforementioned techniques, as well as the bulk moduli for each phase. The bandgap behavior of MAPbBr3 has been studied up to around 4 GPa, by means of single-crystal optical absorption experiments. The evolution of the bandgap has been well explained using the pressure dependence of the Pb-Br bond distance and Pb-Br-Pb angles as determined from single-crystal X-ray diffraction experiments.
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Affiliation(s)
- Akun Liang
- Departamento de Física Aplicada-ICMUV-MALTA Consolider Team, Universitat de València, c/Dr. Moliner 50, 46100 Valencia, Burjassot, Spain
| | - Javier Gonzalez-Platas
- Departmento de Física, Instituto Universitario de Estudios Avanzados en Física Atómica, Molecular y Fotónica (IUDEA) and MALTA Consolider Team, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez s/n, E-38206 La Laguna, Tenerife, Spain
| | - Robin Turnbull
- Departamento de Física Aplicada-ICMUV-MALTA Consolider Team, Universitat de València, c/Dr. Moliner 50, 46100 Valencia, Burjassot, Spain
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola, 08290 Barcelona, Spain
| | - Ismael Fernandez-Guillen
- Institut de Ciència dels Materials, Universidad de Valencia, C/J. Beltran 2, 46980 Paterna, Spain
| | - Rafael Abargues
- Institut de Ciència dels Materials, Universidad de Valencia, C/J. Beltran 2, 46980 Paterna, Spain
| | - Pablo P Boix
- Institut de Ciència dels Materials, Universidad de Valencia, C/J. Beltran 2, 46980 Paterna, Spain
| | - Lan-Ting Shi
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,Spallation Neutron Source Science Center, Dongguan 523803, China
| | - Daniel Errandonea
- Departamento de Física Aplicada-ICMUV-MALTA Consolider Team, Universitat de València, c/Dr. Moliner 50, 46100 Valencia, Burjassot, Spain
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32
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Yi S, Lee JH. Degenerate Lattice-Instability-Driven Amorphization under Compression in Metal Halide Perovskite CsPbI 3. J Phys Chem Lett 2022; 13:9449-9455. [PMID: 36194863 DOI: 10.1021/acs.jpclett.2c02047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Halide perovskites have been intensively investigated for photovoltaic applications because of their good optoelectronic properties and low cost. Various high-pressure experiments have shown that these materials generally undergo reversible phase transitions between different crystalline phases as well as between crystalline and amorphous phases under external pressure. Herein, using first-principles density functional theory (DFT) and ab initio molecular dynamics (AIMD) calculations, we investigate the origin of the pressure-induced amorphization in CsPbI3. We find that the amorphous-like structures obtained from AIMD calculations become more stable than the orthorhombic Pbnm phase above 6.66 GPa, in good agreement with the experimental value (4.44 GPa). We further find that an imaginary flat band appears in the phonon dispersion of the orthorhombic CsPbI3 phase across the Brillouin zone at 10 GPa, leading to degenerate lattice instabilities. These energetically degenerate phonon modes are related to PbI6 octahedral tilting modes and provide random local distortions, leading to amorphization.
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Affiliation(s)
- Seho Yi
- Computational Science Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jung-Hoon Lee
- Computational Science Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
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33
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Fluorescence-based monitoring of the pressure-induced aggregation microenvironment evolution for an AIEgen under multiple excitation channels. Nat Commun 2022; 13:5234. [PMID: 36068224 PMCID: PMC9448794 DOI: 10.1038/s41467-022-32968-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 08/25/2022] [Indexed: 11/09/2022] Open
Abstract
The development of organic solid-state luminescent materials, especially those sensitive to aggregation microenvironment, is critical for their applications in devices such as pressure-sensitive elements, sensors, and photoelectric devices. However, it still faces certain challenges and a deep understanding of the corresponding internal mechanisms is required. Here, we put forward an unconventional strategy to explore the pressure-induced evolution of the aggregation microenvironment, involving changes in molecular conformation, stacking mode, and intermolecular interaction, by monitoring the emission under multiple excitation channels based on a luminogen with aggregation-induced emission characteristics of di(p-methoxylphenyl)dibenzofulvene. Under three excitation wavelengths, the distinct emission behaviors have been interestingly observed to reveal the pressure-induced structural evolution, well consistent with the results from ultraviolet-visible absorption, high-pressure angle-dispersive X-ray diffraction, and infrared studies, which have rarely been reported before. This finding provides important insights into the design of organic solid luminescent materials and greatly promotes the development of stimulus-responsive luminescent materials.
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34
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Zhao L, Liu H, Tong S, Wang J, Han T, Liu C, Gao C, Han Y. Application of impedance spectroscopy in exploring electrical properties of dielectric materials under high pressure. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:434001. [PMID: 35973420 DOI: 10.1088/1361-648x/ac8a33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Impedance spectroscopy (IS) is an indispensable method of exploring electrical properties of materials. In this review, we provide an overview on the specific applications of IS measurement in the investigations of various electrical properties of materials under high pressure, including electric conduction in bulk and grain boundary, dielectric properties, ionic conduction, and electrostrictive effect. Related studies are summarized to demonstrate the method of analyzing different electrical transport processes with various designed equivalent circuits of IS and reveal some interesting phenomena of electrical properties of materials under high pressure.
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Affiliation(s)
- Lin Zhao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China
| | - Hao Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China
| | - Shuang Tong
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China
| | - Jia Wang
- Institute for Interdisciplinary Biomass Functional Materials Studies, Jilin Engineering Normal University, Changchun 130052, People's Republic of China
| | - Tao Han
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China
| | - Cailong Liu
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Technology of Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Chunxiao Gao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China
| | - Yonghao Han
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China
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35
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Yang B, Bogachuk D, Suo J, Wagner L, Kim H, Lim J, Hinsch A, Boschloo G, Nazeeruddin MK, Hagfeldt A. Strain effects on halide perovskite solar cells. Chem Soc Rev 2022; 51:7509-7530. [PMID: 35929481 PMCID: PMC9426645 DOI: 10.1039/d2cs00278g] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Halide perovskite solar cells (PSCs) have achieved power conversion efficiencies (PCEs) approaching 26%, however, the stability issue hinders their commercialization. Due to the soft ionic nature of perovskite materials, the strain effect on perovskite films has been recently recognized as one of the key factors that affects their opto-electronic properties and the device stability. Herein, we summarized the origins of strain, characterization techniques, and implications of strain on both perovskite film and solar cells as well as various strategies to control the strain. Finally, we proposed effective strategies for future strain engineering. We believe this comprehensive review could further facilitate researchers with a deeper understanding of strain effect and enhance the research activity in engineering the strain to further improve performance and especially the device stability toward commercialization. This review systematically describes the origins, characterization and implications of strain in perovskite solar cells and proposes novel control strategies.![]()
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Affiliation(s)
- Bowen Yang
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-75120 Uppsala, Sweden. .,Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, École polytechnique fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Dmitry Bogachuk
- Fraunhofer Institute for Solar Energy Systems ISE, 79110 Freiburg, Germany.,Department of Sustainable Systems Engineering (INATECH), Albert-Ludwigs-Universität Freiburg, 79110 Freiburg, Germany
| | - Jiajia Suo
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-75120 Uppsala, Sweden. .,Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, École polytechnique fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Lukas Wagner
- Fraunhofer Institute for Solar Energy Systems ISE, 79110 Freiburg, Germany
| | - Hobeom Kim
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1951 Sion, Switzerland
| | - Jaekeun Lim
- Department of Sustainable Systems Engineering (INATECH), Albert-Ludwigs-Universität Freiburg, 79110 Freiburg, Germany.,Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1951 Sion, Switzerland
| | - Andreas Hinsch
- Fraunhofer Institute for Solar Energy Systems ISE, 79110 Freiburg, Germany
| | - Gerrit Boschloo
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-75120 Uppsala, Sweden.
| | - Mohammad Khaja Nazeeruddin
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1951 Sion, Switzerland
| | - Anders Hagfeldt
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-75120 Uppsala, Sweden. .,Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, École polytechnique fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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36
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Muscarella L, Cordaro A, Krause G, Pal D, Grimaldi G, Antony LSD, Langhorst D, Callies A, Bläsi B, Höhn O, Koenderink AF, Polman A, Ehrler B. Nanopatterning of Perovskite Thin Films for Enhanced and Directional Light Emission. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38067-38076. [PMID: 35943781 PMCID: PMC9412957 DOI: 10.1021/acsami.2c09643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Lead-halide perovskites offer excellent properties for lighting and display applications. Nanopatterning perovskite films could enable perovskite-based devices with designer properties, increasing their performance and adding novel functionalities. We demonstrate the potential of nanopatterning for achieving light emission of a perovskite film into a specific angular range by introducing periodic sol-gel structures between the injection and emissive layer by using substrate conformal imprint lithography (SCIL). Structural and optical characterization reveals that the emission is funnelled into a well-defined angular range by optical resonances, while the emission wavelength and the structural properties of the perovskite film are preserved. The results demonstrate a flexible and scalable approach to the patterning of perovskite layers, paving the way toward perovskite LEDs with designer angular emission patterns.
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Affiliation(s)
- Loreta
A. Muscarella
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Department
of Chemistry, Utrecht University, Princetonlaan 8, 3584 CB Utrecht, The Netherlands
| | - Andrea Cordaro
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Georg Krause
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Debapriya Pal
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Gianluca Grimaldi
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Cavendish
Laboratory, Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | | | - David Langhorst
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Adrian Callies
- Fraunhofer
Institute for Solar Energy Systems ISE, Heidenhofstraße 2, 79110 Freiburg, Germany
| | - Benedikt Bläsi
- Fraunhofer
Institute for Solar Energy Systems ISE, Heidenhofstraße 2, 79110 Freiburg, Germany
| | - Oliver Höhn
- Fraunhofer
Institute for Solar Energy Systems ISE, Heidenhofstraße 2, 79110 Freiburg, Germany
| | - A. Femius Koenderink
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Albert Polman
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Bruno Ehrler
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
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37
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Zhan X, Jiang X, Lv P, Xu J, Li F, Chen Z, Liu X. Enhanced Structural Stability and Pressure‐Induced Photoconductivity in Two‐Dimensional Hybrid Perovskite (C
6
H
5
CH
2
NH
3
)
2
CuBr
4. Angew Chem Int Ed Engl 2022; 61:e202205491. [DOI: 10.1002/anie.202205491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Xinhui Zhan
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Xiaomei Jiang
- School of State Key Laboratory of Crystal Materials, and Institute of Crystal Materials Shandong University Jinan 250100 China
| | - Pin Lv
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Jie Xu
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Fengjiao Li
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Zhaolai Chen
- School of State Key Laboratory of Crystal Materials, and Institute of Crystal Materials Shandong University Jinan 250100 China
| | - Xiaobing Liu
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
- Advanced Research Institute of Multidisciplinary Sciences Qufu Normal University Qufu, Shandong Province 273165 China
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38
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Zhan X, Jiang X, Lv P, Xu J, Li F, Chen Z, Liu X. Enhanced Structural Stability and Pressure‐Induced Photoconductivity in Two‐Dimensional Hybrid Perovskite (C
6
H
5
CH
2
NH
3
)
2
CuBr
4. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xinhui Zhan
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Xiaomei Jiang
- School of State Key Laboratory of Crystal Materials, and Institute of Crystal Materials Shandong University Jinan 250100 China
| | - Pin Lv
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Jie Xu
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Fengjiao Li
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
| | - Zhaolai Chen
- School of State Key Laboratory of Crystal Materials, and Institute of Crystal Materials Shandong University Jinan 250100 China
| | - Xiaobing Liu
- Laboratory of High Pressure Physics and Material Science (HPPMS) School of Physics and Physical Engineering Qufu Normal University Qufu 273165 Shandong China
- Advanced Research Institute of Multidisciplinary Sciences Qufu Normal University Qufu, Shandong Province 273165 China
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39
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Tuning band gap and enhancing optical functions of AGeF 3 (A = K, Rb) under pressure for improved optoelectronic applications. Sci Rep 2022; 12:8663. [PMID: 35606370 PMCID: PMC9126918 DOI: 10.1038/s41598-022-12713-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/09/2022] [Indexed: 11/08/2022] Open
Abstract
The current study diligently analyzes the physical characteristics of halide perovskites AGeF3 (A = K, Rb) under hydrostatic pressure using density functional theory. The goal of this research is to reduce the electronic band gap of AGeF3 (A = K, Rb) under pressure in order to improve the optical characteristics and assess the compounds' suitability for optoelectronic applications. The structural parameters exhibit a high degree of precision, which correlates well with previously published work. In addition, the bond length and lattice parameters decrease significantly leading to a stronger interaction between atoms. The bonding between K(Rb)-F and Ge-F reveal ionic and covalent nature, respectively, and the bonds become stronger under pressure. The application of hydrostatic pressure demonstrates remarkable changes in the optical absorption and conductivity. The band gap becomes lower with the increment of pressure, resulting in better conductivity. The optical functions also predict that the studied materials might be used in a variety of optoelectronic devices operating in the visible and ultraviolet spectrum. Interestingly, the compounds become more suitable to be used in optoelectronic applications under pressure. Moreover, the external pressure has profound dominance on the mechanical behavior of the titled perovskites, which make them more ductile and anisotropic.
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40
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Shao T, Fang Y, He C, Zhang L, Wang K. Pressure Tuning of Optical Properties and Structures in All-Inorganic Halide Perovskite Rb 7Sb 3Cl 16. Inorg Chem 2022; 61:5184-5189. [PMID: 35319886 DOI: 10.1021/acs.inorgchem.1c04032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
All lead-free inorganic halide perovskites, as efficient solid-state light emission materials, have become ideal green optoelectronic materials to replace lead halide perovskites for diversified lighting and display applications with their excellent stability. Here, we investigated the pressure-derived optical and structural response of a zero-dimensional lead-free perovskite Rb7Sb3Cl16 through applying controllable pressure. A pressure-induced blue shift of the broadband emission was achieved, and it was followed by the emission color transformation from yellow to green, which was ascribed to the electron-phonon coupling weakening and the suppression of structural deformation upon lattice contraction. In parallel, the band gap was narrowed by about 0.5 eV as a result of enhanced metal halide orbital overlap under high pressure. This work provides a fundamental understanding for modulating the optical properties of the low-dimensional metal halide perovskites.
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Affiliation(s)
- TianYin Shao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Yuanyuan Fang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Chunfeng He
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Long Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Kai Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
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41
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Improving the Structural, Optical and Photovoltaic Properties of Sb- and Bi- Co-Doped MAPbBr3 Perovskite Solar Cell. COATINGS 2022. [DOI: 10.3390/coatings12030386] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We prepared 1% Bi- and (0, 0.5%, 1% and 1.5%) Sb- co-doped MAPbBr3 films by a sol-gel spin coating technique. For the first time, the detailed structural properties including grain size, dislocation line density, d-spacing, lattice parameters, and volume of co-doped MAPbBr3 films have been investigated. XRD confirmed the cubic structure of MAPbBr3 with high crystallinity and co-doping of Bi and Sb. The 1% Bi and 1% Sb co-doping have a surprising effect in MAPbBr3 structures, such as large grain size (59.5 nm), d-space value (6.23 Å), small dislocation line dislocation (2.79 × 1018 m−2), and small lattice parameters (a = b = c = 6.3 Å) and volume of unit cell. The detailed optical properties, including energy band gap (Eg), refractive index (n), extinction coefficient (k) and dielectric constant (Ɛ), which are very important for optoelectronics applications, were investigated by UV-Vis spectroscopy. The film of 1% Bi and 1% Sb co-doped MAPbBr3 showed good optical response including small Eg, high n, low value of k, high real and low imaginary parts of dielectric constant, making it good for solar cell applications. Solar cells were fabricated from these films. The cell fabricated with pure MAPbBr3 has Jsc of 8.72 mA cm−2, FF of 0.66, Voc of 1.29 V, and η of 7.5%. All the parameters increased by co-doping of Bi and Sb in MAPbBr3 film. The cell fabricated with 1% Bi and 1% Sb co-doped MAPbBr3 film had high current density (12.12 mA-cm−2), open circuit voltage (Voc), fill factor (0.73), and high efficiency (11.6%). This efficiency was 65% larger than a pure MAPbBr3-based solar cell.
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42
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Xiang G, Wu Y, Zhang M, Leng J, Cheng C, Ma H. Strain-induced bandgap engineering in CsGeX 3 (X = I, Br or Cl) perovskites: insights from first-principles calculations. Phys Chem Chem Phys 2022; 24:5448-5454. [PMID: 35171170 DOI: 10.1039/d1cp05787a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Based on density functional theory and following first-principles methods, this paper investigated the electronic structures, densities of states, effective masses of electrons and holes, and optical properties of CsGeX3 (X = I, Br or Cl) perovskites under triaxial strains of -4% to 4%. The calculated results show that the tuning range of the bandgaps of the CsGeI3, CsGeBr3, and CsGeCl3 perovskites are 1.16 eV, 1.64 eV, and 1.63 eV, respectively. This result shows that the bandgap of the CsGeX3 perovskite is tuned over the entire visible spectrum by applying strain. Also, it is found that the change of the bandgap is caused by the change of the Ge-X long bond. Besides, the optimal bandgaps of CsGeI3 and CsGeBr3 can be achieved by applying compressive strains, providing theoretical support for adjusting the bandgaps of CsGeX3 perovskites. The effective masses of electrons and holes of CsGeX3 perovskites decrease gradually with the strains changing from 4% to -4%, which is conducive to the transmission of electrons and holes. In addition, the optical properties of CsGeX3 perovskites change from redshifted to blueshifted under different strains.
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Affiliation(s)
- Guangbiao Xiang
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Yanwen Wu
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Man Zhang
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Jiancai Leng
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Chen Cheng
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Hong Ma
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
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43
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Zheng R, Ueda J, Shinozaki K, Tanabe S. Effect of Glass Composition on Luminescence and Structure of CsPbBr 3 Quantum Dots in an Amorphous Matrix. MATERIALS 2022; 15:ma15051678. [PMID: 35268905 PMCID: PMC8911452 DOI: 10.3390/ma15051678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 11/16/2022]
Abstract
Glass matrix embedding is an efficient way to improve the chemical and thermal stability of the halide perovskite QDs. However, CsPbX3 QDs exhibit distinct optical properties in different glass matrixes, including photoluminescence (PL) peak position, PL peak width, and optical band gap. In this work, the temperature-dependent PL spectra, absorption spectra, high-energy X-ray structure factor S(Q), and pair distribution function (PDF) were integrated to analyze the structural evolution of CsPbBr3 QDs in different glass matrixes. The results show that the lattice parameters and atomic spacing of CsPbBr3 QDs are affected by the glass composition in which they are embedded. The most possibility can be attributed to the thermal expansion mismatch between CsPbBr3 QDs and the glass matrix. The results may provide a new way to understand the effect of the glass composition on the optical properties of CsPbBr3 QDs in a glass matrix.
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Affiliation(s)
- Ruilin Zheng
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan; (J.U.); (S.T.)
- Correspondence:
| | - Jumpei Ueda
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan; (J.U.); (S.T.)
| | - Kenji Shinozaki
- National Institute of Advanced Industrial Science and Technology (AIST), Osaka 563-8577, Japan;
| | - Setsuhisa Tanabe
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan; (J.U.); (S.T.)
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44
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Kosasih FU, Divitini G, Orri JF, Tennyson EM, Kusch G, Oliver RA, Stranks SD, Ducati C. Optical emission from focused ion beam milled halide perovskite device cross-sections. Microsc Res Tech 2022; 85:2351-2355. [PMID: 35118749 PMCID: PMC9304233 DOI: 10.1002/jemt.24069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 02/04/2023]
Abstract
Cross-sectional transmission electron microscopy has been widely used to investigate organic-inorganic hybrid halide perovskite-based optoelectronic devices. Electron-transparent specimens (lamellae) used in such studies are often prepared using focused ion beam (FIB) milling. However, the gallium ions used in FIB milling may severely degrade the structure and composition of halide perovskites in the lamellae, potentially invalidating studies performed on them. In this work, the close relationship between perovskite structure and luminescence is exploited to examine the structural quality of perovskite solar cell lamellae prepared by FIB milling. Through hyperspectral cathodoluminescence (CL) mapping, the perovskite layer was found to remain optically active with a slightly blue-shifted luminescence. This finding indicates that the perovskite structure is largely preserved upon the lamella fabrication process although some surface amorphisation occurred. Further changes in CL due to electron beam irradiation were also recorded, confirming that electron dose management is essential in electron microscopy studies of carefully prepared halide perovskite-based device lamellae.
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Affiliation(s)
- Felix U Kosasih
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Giorgio Divitini
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.,Center for Convergent Technologies, Istituto Italiano di Tecnologia, Via Morego, 30, Genoa, 16163, Italy
| | - Jordi Ferrer Orri
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.,Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | | | - Gunnar Kusch
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Rachel A Oliver
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Samuel D Stranks
- Cavendish Laboratory, University of Cambridge, Cambridge, UK.,Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | - Caterina Ducati
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
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45
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Zhang B, Wu X, Zhou S, Liang G, Hu Q. Self-trapped exciton emission in inorganic copper(I) metal halides. FRONTIERS OF OPTOELECTRONICS 2021; 14:459-472. [PMID: 36637760 PMCID: PMC9743870 DOI: 10.1007/s12200-021-1133-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/02/2021] [Indexed: 05/11/2023]
Abstract
The broad emission and high photoluminescence quantum yield of self-trapped exciton (STE) radiative recombination emitters make them an ideal solution for single-substrate, white, solid-state lighting sources. Unlike impurities and defects in semiconductors, the formation of STEs requires a lattice distortion, along with strong electron-phonon coupling, in low electron-dimensional materials. The photoluminescence of inorganic copper(I) metal halides with low electron-dimensionality has been found to be the result of STEs. These materials were of significant interest because of their lead-free, all-inorganic structures, and high luminous efficiencies. In this paper, we summarize the luminescence characteristics of zero- and one-dimensional inorganic copper(I) metal halides with STEs to provide an overview of future research opportunities.
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Affiliation(s)
- Boyu Zhang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, China
| | - Xian Wu
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, China
| | - Shuxing Zhou
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, China
| | - Guijie Liang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, China
| | - Qingsong Hu
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, China.
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46
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Xiang G, Wu Y, Zhang M, Cheng C, Leng J, Ma H. Dimension-Dependent Bandgap Narrowing and Metallization in Lead-Free Halide Perovskite Cs 3Bi 2X 9 (X = I, Br, and Cl) under High Pressure. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2712. [PMID: 34685153 PMCID: PMC8539073 DOI: 10.3390/nano11102712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 11/16/2022]
Abstract
Low-toxicity, air-stable cesium bismuth iodide Cs3Bi2X9 (X = I, Br, and Cl) perovskites are gaining substantial attention owing to their excellent potential in photoelectric and photovoltaic applications. In this work, the lattice constants, band structures, density of states, and optical properties of the Cs3Bi2X9 under high pressure perovskites are theoretically studied using the density functional theory. The calculated results show that the changes in the bandgap of the zero-dimensional Cs3Bi2I9, one-dimensional Cs3Bi2Cl9, and two-dimensional Cs3Bi2Br9 perovskites are 3.05, 1.95, and 2.39 eV under a pressure change from 0 to 40 GPa, respectively. Furthermore, it was found that the optimal bandgaps of the Shockley-Queisser theory for the Cs3Bi2I9, Cs3Bi2Br9, and Cs3Bi2Cl9 perovskites can be reached at 2-3, 21-26, and 25-29 GPa, respectively. The Cs3Bi2I9 perovskite was found to transform from a semiconductor into a metal at a pressure of 17.3 GPa. The lattice constants, unit-cell volume, and bandgaps of the Cs3Bi2X9 perovskites exhibit a strong dependence on dimension. Additionally, the Cs3Bi2X9 perovskites have large absorption coefficients in the visible region, and their absorption coefficients undergo a redshift with increasing pressure. The theoretical calculation results obtained in this work strengthen the fundamental understanding of the structures and bandgaps of Cs3Bi2X9 perovskites at high pressures, providing a theoretical support for the design of materials under high pressure.
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Affiliation(s)
- Guangbiao Xiang
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (G.X.); (Y.W.); (M.Z.)
| | - Yanwen Wu
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (G.X.); (Y.W.); (M.Z.)
| | - Man Zhang
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (G.X.); (Y.W.); (M.Z.)
| | - Chen Cheng
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (G.X.); (Y.W.); (M.Z.)
| | - Jiancai Leng
- School of Electronic and Information Engineering (Department of Physics), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hong Ma
- Shandong Provincial Key Laboratory of Optics and Photonic Device, Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (G.X.); (Y.W.); (M.Z.)
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47
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Wang J, Wang L, Wang F, Jiang S, Guo H. Pressure-induced bandgap engineering of lead-free halide double perovskite (NH 4) 2SnBr 6. Phys Chem Chem Phys 2021; 23:19308-19312. [PMID: 34524306 DOI: 10.1039/d1cp03267d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead-free halide double perovskites (HDPs) have recently been proposed as potential stable and environment-friendly alternatives to lead-based halide perovskites. Bandgap engineering plays a vital role in the optoelectronic applications of HDP materials. In this study, methods combining high-pressure techniques with density functional theory calculations were employed to implement the bandgap engineering of a classic HDP-based (NH4)2SnBr6. Under high pressure, (NH4)2SnBr6 exhibits a redshift of the bandgap with increasing pressure up to 6.3 GPa and a sudden blueshift up to 20.2 GPa, followed by a redshift at higher pressures, which is relevant to the cubic-tetragonal phase transition, direct-indirect transition, and amorphization, respectively. Our results enrich the understanding of the structural-optical properties of (NH4)2SnBr6 and reveal the special role of NH4+ cations in pressure-induced bandgap engineering, thus providing important information for application in optoelectronic devices and helping to design ideal materials with higher efficiency.
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Affiliation(s)
- Jiaxiang Wang
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China.
| | - Lingrui Wang
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China.
| | - Fei Wang
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China. .,International Laboratory for Quantum Functional Materials of Henan, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Sheng Jiang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Haizhong Guo
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China. .,Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan, Shandong 250358, China
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48
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Song C, Yang H, Liu F, Cheng GJ. Ultrafast femtosecond pressure modulation of structure and exciton kinetics in 2D halide perovskites for enhanced light response and stability. Nat Commun 2021; 12:4879. [PMID: 34385428 PMCID: PMC8361179 DOI: 10.1038/s41467-021-25140-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/19/2021] [Indexed: 11/09/2022] Open
Abstract
The carriers’ transportation between layers of two-dimensional (2D) perovskites is inhibited by dielectric confinement. Here, for the first time, we employ a femtosecond laser to introduce ultrafast shock pressure in the range of 0~15.45 GPa to reduce dielectric confinement by modulating the structure and exciton dynamics in a perovskite single crystal (PSCs), e.g. (F-PEA)2PbI4 (4-fluorophenethylammonium, F-PEA). The density functional theory (DFT) simulation and experimental results show that the inorganic framework distortion results in a bandgap reduction. It was found that the exciton-optical phonon coupling and free excitons (FEs) binding energy are minimized at 2.75 GPa shock pressure due to a reduction in dielectric confinement. The stability testing under various harsh light and humid thermal conditions shows that femtosecond laser shocking improves the stability of (F-PEA)2PbI4 PSCs. Femtosecond laser shock processing provides a new approach for regulating the structure and enhancing halide perovskite properties. Exciton in two-dimensional perovskite is strongly influenced by dielectric confinement of the organic components. Here, the authors employ femtosecond laser to induce ultrashock pressure to investigate how the structural changes and the reduction of dielectric confinement affects exciton behaviour and dynamic.
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Affiliation(s)
- Chunpeng Song
- The Institute of Technological Sciences, Wuhan University, Wuhan, China
| | - Huanrui Yang
- The Institute of Technological Sciences, Wuhan University, Wuhan, China
| | - Feng Liu
- The Institute of Technological Sciences, Wuhan University, Wuhan, China
| | - Gary J Cheng
- The Institute of Technological Sciences, Wuhan University, Wuhan, China. .,Brick Nanotechnology Center, Purdue University, West Lafayette, IN, USA. .,School of Industrial Engineering, Purdue University, West Lafayette, IN, USA.
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Ghimire S, Klinke C. Two-dimensional halide perovskites: synthesis, optoelectronic properties, stability, and applications. NANOSCALE 2021; 13:12394-12422. [PMID: 34240087 DOI: 10.1039/d1nr02769g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Halide perovskites are promising materials for light-emitting and light-harvesting applications. In this context, two-dimensional perovskites such as nanoplatelets or Ruddlesden-Popper and Dion-Jacobson layered structures are important because of their structural flexibility, electronic confinement, and better stability. This review article brings forth an extensive overview of the recent developments of two-dimensional halide perovskites both in the colloidal and non-colloidal forms. We outline the strategy to synthesize and control the shape and discuss different crystalline phases and optoelectronic properties. We review the applications of two-dimensional perovskites in solar cells, light-emitting diodes, lasers, photodetectors, and photocatalysis. Besides, we also emphasize the moisture, thermal, and photostability of these materials in comparison to their three-dimensional analogs.
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Affiliation(s)
- Sushant Ghimire
- Institute of Physics, University of Rostock, 18059 Rostock, Germany.
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Zhao D, Xiao G, Liu Z, Sui L, Yuan K, Ma Z, Zou B. Harvesting Cool Daylight in Hybrid Organic-Inorganic Halides Microtubules through the Reservation of Pressure-Induced Emission. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100323. [PMID: 34151466 DOI: 10.1002/adma.202100323] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/26/2021] [Indexed: 06/13/2023]
Abstract
Pressure-induced emission (PIE) is extensively studied in halide perovskites or derivative hybrid halides. However, owing to the soft inorganic lattice of these materials, the intense emission is barely retained under ambient conditions, thus largely limiting their practical applications in optoelectronics at atmospheric pressure. Here, remarkably enhanced emission in microtubules of the 0D hybrid halide (C5 H7 N2 )2 ZnBr4 ((4AMP)2 ZnBr4 ) is successfully achieved by means of pressure treatment at room temperature. Notably, the emission, which is over ten times more intense than the emission in the initial state, is retained under ambient conditions upon the complete release of pressure. Furthermore, the pressure processing enables the tuning of "sky blue light" before compression to "cool daylight" with a remarkable quantum yield of 88.52% after decompression, which is of considerable interest for applications in next-generation lighting and displays. The irreversible electronic structural transition, induced by the steric hindrance with respect to complexly configurational organic molecules [4AMP], is highly responsible for the eventual retention of PIE and tuning of the color temperature. The findings represent a significant step toward the capture of PIE under ambient conditions, thus facilitating its potential solid-state lighting applications.
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Affiliation(s)
- Dianlong Zhao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Zhun Liu
- Institute of Semiconductors, South China Normal University, Guangzhou, 510631, China
| | - Laizhi Sui
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Kaijun Yuan
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhiwei Ma
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
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