Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis

Abstract In this study, we employ a combination of various in-situ surface analysis techniques to investigate the thermally induced degradation processes in MAPbI3 perovskite solar cells (PeSCs) as a function of temperature under air-free conditions (no moisture and oxygen). Through a comprehensive...

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Autores principales:	Nam-Koo Kim, Young Hwan Min, Seokhwan Noh, Eunkyung Cho, Gitaeg Jeong, Minho Joo, Seh-Won Ahn, Jeong Soo Lee, Seongtak Kim, Kyuwook Ihm, Hyungju Ahn, Yoonmook Kang, Hae-Seok Lee, Donghwan Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e61a694f64fd424abfb7e1fc13779363
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spelling	oai:doaj.org-article:e61a694f64fd424abfb7e1fc137793632021-12-02T12:32:44ZInvestigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis10.1038/s41598-017-04690-w2045-2322https://doaj.org/article/e61a694f64fd424abfb7e1fc137793632017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04690-whttps://doaj.org/toc/2045-2322Abstract In this study, we employ a combination of various in-situ surface analysis techniques to investigate the thermally induced degradation processes in MAPbI3 perovskite solar cells (PeSCs) as a function of temperature under air-free conditions (no moisture and oxygen). Through a comprehensive approach that combines in-situ grazing-incidence wide-angle X-ray diffraction (GIWAXD) and high-resolution X-ray photoelectron spectroscopy (HR-XPS) measurements, we confirm that the surface structure of MAPbI3 perovskite film changes to an intermediate phase and decomposes to CH3I, NH3, and PbI2 after both a short (20 min) exposure to heat stress at 100 °C and a long exposure (>1 hour) at 80 °C. Moreover, we observe clearly the changes in the orientation of CH3NH3 + organic cations with respect to the substrate in the intermediate phase, which might be linked directly to the thermal degradation processes in MAPbI3 perovskites. These results provide important progress towards improved understanding of the thermal degradation mechanisms in perovskite materials and will facilitate improvements in the design and fabrication of perovskite solar cells with better thermal stability.Nam-Koo KimYoung Hwan MinSeokhwan NohEunkyung ChoGitaeg JeongMinho JooSeh-Won AhnJeong Soo LeeSeongtak KimKyuwook IhmHyungju AhnYoonmook KangHae-Seok LeeDonghwan KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nam-Koo Kim Young Hwan Min Seokhwan Noh Eunkyung Cho Gitaeg Jeong Minho Joo Seh-Won Ahn Jeong Soo Lee Seongtak Kim Kyuwook Ihm Hyungju Ahn Yoonmook Kang Hae-Seok Lee Donghwan Kim Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
description	Abstract In this study, we employ a combination of various in-situ surface analysis techniques to investigate the thermally induced degradation processes in MAPbI3 perovskite solar cells (PeSCs) as a function of temperature under air-free conditions (no moisture and oxygen). Through a comprehensive approach that combines in-situ grazing-incidence wide-angle X-ray diffraction (GIWAXD) and high-resolution X-ray photoelectron spectroscopy (HR-XPS) measurements, we confirm that the surface structure of MAPbI3 perovskite film changes to an intermediate phase and decomposes to CH3I, NH3, and PbI2 after both a short (20 min) exposure to heat stress at 100 °C and a long exposure (>1 hour) at 80 °C. Moreover, we observe clearly the changes in the orientation of CH3NH3 + organic cations with respect to the substrate in the intermediate phase, which might be linked directly to the thermal degradation processes in MAPbI3 perovskites. These results provide important progress towards improved understanding of the thermal degradation mechanisms in perovskite materials and will facilitate improvements in the design and fabrication of perovskite solar cells with better thermal stability.
format	article
author	Nam-Koo Kim Young Hwan Min Seokhwan Noh Eunkyung Cho Gitaeg Jeong Minho Joo Seh-Won Ahn Jeong Soo Lee Seongtak Kim Kyuwook Ihm Hyungju Ahn Yoonmook Kang Hae-Seok Lee Donghwan Kim
author_facet	Nam-Koo Kim Young Hwan Min Seokhwan Noh Eunkyung Cho Gitaeg Jeong Minho Joo Seh-Won Ahn Jeong Soo Lee Seongtak Kim Kyuwook Ihm Hyungju Ahn Yoonmook Kang Hae-Seok Lee Donghwan Kim
author_sort	Nam-Koo Kim
title	Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
title_short	Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
title_full	Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
title_fullStr	Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
title_full_unstemmed	Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
title_sort	investigation of thermally induced degradation in ch3nh3pbi3 perovskite solar cells using in-situ synchrotron radiation analysis
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e61a694f64fd424abfb7e1fc13779363
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Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis

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