Investigation of Cation Exchange Behaviors of FAxMA1−xPbI3 Films Using Dynamic Spin-Coating

In this study, we fabricated and characterized uniform multi-cation perovskite FAxMA1−xPbI3 films. We used the dynamic spin-coating method to control the cation ratio of the film by gradually increasing the FA+, which replaced the...

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Autores principales:	Hyang Mi Yu, Byeong Geun Jeong, Dae Young Park, Seong Chu Lim, Gon Namkoong, Mun Seok Jeong
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cation exchange dynamic spin-coating FA<sub>x</sub>MA<sub>1</sub><sub>−</sub><sub>x</sub>PbI<sub>3</sub> δ-phase FAPbI<sub>3</sub> FA cations MA cations Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/b289592c243c4c3184b41774d42dc3c7
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spelling	oai:doaj.org-article:b289592c243c4c3184b41774d42dc3c72021-11-11T17:59:49ZInvestigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating10.3390/ma142164221996-1944https://doaj.org/article/b289592c243c4c3184b41774d42dc3c72021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6422https://doaj.org/toc/1996-1944In this study, we fabricated and characterized uniform multi-cation perovskite FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> films. We used the dynamic spin-coating method to control the cation ratio of the film by gradually increasing the FA+, which replaced the MA+ in the films. When the FA+ concentration was lower than xFA ~0.415 in the films, the stability of the multi-cation perovskite improved. Above this concentration, the film exhibited δ-phase FAPbI<sub>3</sub> in the FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> films. The formation of δ-phase FAPbI<sub>3</sub> disturbed the homogeneity of the photoluminescence spatial distribution and suppressed the absorption spectral bandwidth with the increasing bandgap. The precise control of the cation ratio of multi-cation perovskite films is necessary to optimize the energy-harvesting performance.Hyang Mi YuByeong Geun JeongDae Young ParkSeong Chu LimGon NamkoongMun Seok JeongMDPI AGarticlecation exchangedynamic spin-coatingFA<sub>x</sub>MA<sub>1</sub><sub>−</sub><sub>x</sub>PbI<sub>3</sub>δ-phase FAPbI<sub>3</sub>FA cationsMA cationsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6422, p 6422 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cation exchange dynamic spin-coating FA<sub>x</sub>MA<sub>1</sub><sub>−</sub><sub>x</sub>PbI<sub>3</sub> δ-phase FAPbI<sub>3</sub> FA cations MA cations Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	cation exchange dynamic spin-coating FA<sub>x</sub>MA<sub>1</sub><sub>−</sub><sub>x</sub>PbI<sub>3</sub> δ-phase FAPbI<sub>3</sub> FA cations MA cations Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Hyang Mi Yu Byeong Geun Jeong Dae Young Park Seong Chu Lim Gon Namkoong Mun Seok Jeong Investigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating
description	In this study, we fabricated and characterized uniform multi-cation perovskite FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> films. We used the dynamic spin-coating method to control the cation ratio of the film by gradually increasing the FA+, which replaced the MA+ in the films. When the FA+ concentration was lower than xFA ~0.415 in the films, the stability of the multi-cation perovskite improved. Above this concentration, the film exhibited δ-phase FAPbI<sub>3</sub> in the FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> films. The formation of δ-phase FAPbI<sub>3</sub> disturbed the homogeneity of the photoluminescence spatial distribution and suppressed the absorption spectral bandwidth with the increasing bandgap. The precise control of the cation ratio of multi-cation perovskite films is necessary to optimize the energy-harvesting performance.
format	article
author	Hyang Mi Yu Byeong Geun Jeong Dae Young Park Seong Chu Lim Gon Namkoong Mun Seok Jeong
author_facet	Hyang Mi Yu Byeong Geun Jeong Dae Young Park Seong Chu Lim Gon Namkoong Mun Seok Jeong
author_sort	Hyang Mi Yu
title	Investigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating
title_short	Investigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating
title_full	Investigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating
title_fullStr	Investigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating
title_full_unstemmed	Investigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating
title_sort	investigation of cation exchange behaviors of fa<sub>x</sub>ma<sub>1−x</sub>pbi<sub>3</sub> films using dynamic spin-coating
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b289592c243c4c3184b41774d42dc3c7
work_keys_str_mv	AT hyangmiyu investigationofcationexchangebehaviorsoffasubxsubmasub1xsubpbisub3subfilmsusingdynamicspincoating AT byeonggeunjeong investigationofcationexchangebehaviorsoffasubxsubmasub1xsubpbisub3subfilmsusingdynamicspincoating AT daeyoungpark investigationofcationexchangebehaviorsoffasubxsubmasub1xsubpbisub3subfilmsusingdynamicspincoating AT seongchulim investigationofcationexchangebehaviorsoffasubxsubmasub1xsubpbisub3subfilmsusingdynamicspincoating AT gonnamkoong investigationofcationexchangebehaviorsoffasubxsubmasub1xsubpbisub3subfilmsusingdynamicspincoating AT munseokjeong investigationofcationexchangebehaviorsoffasubxsubmasub1xsubpbisub3subfilmsusingdynamicspincoating
_version_	1718431963461713920

Investigation of Cation Exchange Behaviors of FA<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> Films Using Dynamic Spin-Coating

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