钙钛矿(结构)
材料科学
微晶
碘化物
单晶
Crystal(编程语言)
能量转换效率
光电子学
结晶学
化学
无机化学
计算机科学
程序设计语言
冶金
作者
Vishal Yeddu,Parinaz Moazzezi,Bekir Turedi,Muhammad Naufal Lintangpradipto,Dongyang Zhang,Soumya Kundu,Deepak Thrithamarassery Gangadharan,Reuven Gordon,Osman M. Bakr,Makhsud I. Saidaminov
出处
期刊:ACS applied energy materials
[American Chemical Society]
日期:2023-02-13
卷期号:6 (4): 2257-2264
标识
DOI:10.1021/acsaem.2c03416
摘要
Perovskite solar cells show spontaneous efficiency enhancement (SEE), i.e., their efficiency improves with time over a few days. Many mechanisms have been proposed for explaining such behavior in polycrystalline perovskite solar cells. However, such studies have not been performed on single-crystal perovskite solar cells. Here, we report our observation of slow (∼20 days) SEE in methylammonium lead iodide single-crystal perovskite solar cells. We found that the SEE is due to the slow escape of solvent trapped by the perovskite single-crystal thin films. We show that this process can be substantially accelerated by heat treatment of cells at 40 °C. This work provides a ground for fast-tracking the progress of single-crystal perovskite solar cells.
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