Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices

Abstract All-inorganic lead halide perovskites (LHPs) and their use in optoelectronic devices have been widely explored because they are more thermally stable than their hybrid organic‒inorganic counterparts. However, the active perovskite phases of some inorganic LHPs are metastable at room tempera...

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Main Authors: Handong Jin, Yu-Jia Zeng, Julian A. Steele, Maarten B. J. Roeffaers, Johan Hofkens, Elke Debroye
Format: Article
Language:English
Published: Nature Portfolio 2024-05-01
Series:NPG Asia Materials
Online Access:https://doi.org/10.1038/s41427-024-00540-0
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author Handong Jin
Yu-Jia Zeng
Julian A. Steele
Maarten B. J. Roeffaers
Johan Hofkens
Elke Debroye
author_facet Handong Jin
Yu-Jia Zeng
Julian A. Steele
Maarten B. J. Roeffaers
Johan Hofkens
Elke Debroye
author_sort Handong Jin
collection DOAJ
description Abstract All-inorganic lead halide perovskites (LHPs) and their use in optoelectronic devices have been widely explored because they are more thermally stable than their hybrid organic‒inorganic counterparts. However, the active perovskite phases of some inorganic LHPs are metastable at room temperature due to the critical structural tolerance factor. For example, black phase CsPbI3 is easily transformed back to the nonperovskite yellow phase at ambient temperature. Much attention has been paid to improving the phase stabilities of inorganic LHPs, especially those with high solar cell efficiencies. Herein, we discussed the origin of phase stability for CsPbI3 and the strategies used to stabilize the cubic (α) phase. We also assessed the CsPbI3 black β/γ phases that are relatively stable at nearly room temperature. Furthermore, we determined the relationship between phase stabilization and defect passivation and reviewed the growing trend in solar cell efficiency based on black phase CsPbI3. Finally, we provide perspectives for future research related to the quest for optimum device efficiency and green energy.
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series NPG Asia Materials
spelling doaj-art-7321313f21e64d5f8759905d9a3591dc2025-01-19T12:28:41ZengNature PortfolioNPG Asia Materials1884-40572024-05-0116111810.1038/s41427-024-00540-0Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devicesHandong Jin0Yu-Jia Zeng1Julian A. Steele2Maarten B. J. Roeffaers3Johan Hofkens4Elke Debroye5Department of Chemistry, KU LeuvenKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen UniversityAustralian Institute for Bioengineering and Nanotechnology and School of Mathematics and Physics, The University of QueenslandcMACS, Department of Microbial and Molecular Systems, KU LeuvenDepartment of Chemistry, KU LeuvenDepartment of Chemistry, KU LeuvenAbstract All-inorganic lead halide perovskites (LHPs) and their use in optoelectronic devices have been widely explored because they are more thermally stable than their hybrid organic‒inorganic counterparts. However, the active perovskite phases of some inorganic LHPs are metastable at room temperature due to the critical structural tolerance factor. For example, black phase CsPbI3 is easily transformed back to the nonperovskite yellow phase at ambient temperature. Much attention has been paid to improving the phase stabilities of inorganic LHPs, especially those with high solar cell efficiencies. Herein, we discussed the origin of phase stability for CsPbI3 and the strategies used to stabilize the cubic (α) phase. We also assessed the CsPbI3 black β/γ phases that are relatively stable at nearly room temperature. Furthermore, we determined the relationship between phase stabilization and defect passivation and reviewed the growing trend in solar cell efficiency based on black phase CsPbI3. Finally, we provide perspectives for future research related to the quest for optimum device efficiency and green energy.https://doi.org/10.1038/s41427-024-00540-0
spellingShingle Handong Jin
Yu-Jia Zeng
Julian A. Steele
Maarten B. J. Roeffaers
Johan Hofkens
Elke Debroye
Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
NPG Asia Materials
title Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
title_full Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
title_fullStr Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
title_full_unstemmed Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
title_short Phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
title_sort phase stabilization of cesium lead iodide perovskites for use in efficient optoelectronic devices
url https://doi.org/10.1038/s41427-024-00540-0
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