Probing longitudinal carrier transport in perovskite thin films via modified transient reflection spectroscopy

Shengli Zhao,Jing Leng,Shiping Wang,Xianchang Yan,Zixi Yin,Yanfeng Yin,Jun Zhang,Shengye Jin

Chemical Science（2022）

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摘要

A back-excitation transient reflection spectroscopy was developed to visualize longitudinal carrier transport in perovskite films, showing that the longitudinal diffusion coefficient decreases sharply with increasing thickness-to-grain-size ratio.

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