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Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering

All-inorganic CsPbI(2)Br shows high thermal stability for promising application in perovskite solar cells (PSCs). The performance of PSCs is significantly affected by their morphology and crystallinity induced by compositional ratio, solvent/anti-solvent engineering and post thermal annealing. In th...

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Detalles Bibliográficos
Autores principales: He, Fang, Xu, Wenzhan, Zhang, Meng, Zhang, Xuan, Ding, Baofu, Wei, Guodan, Kang, Feiyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072195/
https://www.ncbi.nlm.nih.gov/pubmed/35530239
http://dx.doi.org/10.1039/c9ra06363c
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author He, Fang
Xu, Wenzhan
Zhang, Meng
Zhang, Xuan
Ding, Baofu
Wei, Guodan
Kang, Feiyu
author_facet He, Fang
Xu, Wenzhan
Zhang, Meng
Zhang, Xuan
Ding, Baofu
Wei, Guodan
Kang, Feiyu
author_sort He, Fang
collection PubMed
description All-inorganic CsPbI(2)Br shows high thermal stability for promising application in perovskite solar cells (PSCs). The performance of PSCs is significantly affected by their morphology and crystallinity induced by compositional ratio, solvent/anti-solvent engineering and post thermal annealing. In this study, the compositional ratio effect of two precursors, PbI(2) and CsBr, on the power conversion efficiency (PCE) of a device with ITO/SnO(2)/CsPbI(2)Br/Spiro-MeOTAD/Au structure was investigated. With the assistance of anti-solvent chlorobenzene, perovskite with a PbI(2) : CsBr ratio of 1.05 : 1 showed a high quality thin film with higher crystallinity and larger grain size. In addition, the molar ratio of precursors PbI(2) and CsBr improved the PCE of the PSCs, and the PSCs fabricated using the perovskite with an optimal ratio of PbI(2) and CsBr exhibited a PCE of 13.34%.
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spelling pubmed-90721952022-05-06 Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering He, Fang Xu, Wenzhan Zhang, Meng Zhang, Xuan Ding, Baofu Wei, Guodan Kang, Feiyu RSC Adv Chemistry All-inorganic CsPbI(2)Br shows high thermal stability for promising application in perovskite solar cells (PSCs). The performance of PSCs is significantly affected by their morphology and crystallinity induced by compositional ratio, solvent/anti-solvent engineering and post thermal annealing. In this study, the compositional ratio effect of two precursors, PbI(2) and CsBr, on the power conversion efficiency (PCE) of a device with ITO/SnO(2)/CsPbI(2)Br/Spiro-MeOTAD/Au structure was investigated. With the assistance of anti-solvent chlorobenzene, perovskite with a PbI(2) : CsBr ratio of 1.05 : 1 showed a high quality thin film with higher crystallinity and larger grain size. In addition, the molar ratio of precursors PbI(2) and CsBr improved the PCE of the PSCs, and the PSCs fabricated using the perovskite with an optimal ratio of PbI(2) and CsBr exhibited a PCE of 13.34%. The Royal Society of Chemistry 2019-09-26 /pmc/articles/PMC9072195/ /pubmed/35530239 http://dx.doi.org/10.1039/c9ra06363c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
He, Fang
Xu, Wenzhan
Zhang, Meng
Zhang, Xuan
Ding, Baofu
Wei, Guodan
Kang, Feiyu
Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering
title Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering
title_full Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering
title_fullStr Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering
title_full_unstemmed Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering
title_short Highly crystalline CsPbI(2)Br films for efficient perovskite solar cells via compositional engineering
title_sort highly crystalline cspbi(2)br films for efficient perovskite solar cells via compositional engineering
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072195/
https://www.ncbi.nlm.nih.gov/pubmed/35530239
http://dx.doi.org/10.1039/c9ra06363c
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