材料科学
相对湿度
钙钛矿(结构)
薄膜
基质(水族馆)
氧化锡
湿度
石灰
分析化学(期刊)
椭圆偏振法
热稳定性
电介质
矿物学
光电子学
兴奋剂
化学工程
纳米技术
冶金
热力学
化学
工程类
地质学
色谱法
物理
海洋学
作者
Marie Solange Tumusange,Biwas Subedi,Cong Chen,Maxwell M. Junda,Zhaoning Song,Yanfa Yan,Nikolas J. Podraza
出处
期刊:Materials
[MDPI AG]
日期:2021-07-20
卷期号:14 (14): 4054-4054
被引量:10
摘要
In situ real-time spectroscopic ellipsometry (RTSE) measurements have been conducted on MAPbI3, MA0.7FA0.3PbI3, and (FAPbI3)0.95(MAPbBr3)0.05 perovskite thin films when exposed to different levels of relative humidity at given temperatures over time. Analysis of RTSE measurements track changes in the complex dielectric function spectra and structure, which indicate variations in stability influenced by the underlying material, preparation method, and perovskite composition. MAPbI3 and MA0.7FA0.3PbI3 films deposited on commercial fluorine-doped tin oxide coated glass are more stable than corresponding films deposited on soda lime glass directly. (FAPbI3)0.95(MAPbBr3)0.05 films on soda lime glass showed improved stability over the other compositions regardless of the substrate, and this is attributed to the preparation method as well as the final composition.
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