Photon‐Induced Reversible Phase Transition in CsPbBr 3 Perovskite

Structure reorganization within perovskite materials has attracted much attention due to its assisted appealing features in optoelectronic devices, such as achieving continue‐wave laser and performance enhancement in photovoltaic devices. Unfortunately, the difficulty of controlling reorganization p...

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Bibliographic Details
Published in:Advanced functional materials 2019-03, Vol.29 (13)
Main Authors: Xue, Jie, Yang, Dandan, Cai, Bo, Xu, Xiaobao, Wang, Jian, Ma, He, Yu, Xuechao, Yuan, Guoliang, Zou, Yousheng, Song, Jizhong, Zeng, Haibo
Format: Article
Language:English
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Summary:Structure reorganization within perovskite materials has attracted much attention due to its assisted appealing features in optoelectronic devices, such as achieving continue‐wave laser and performance enhancement in photovoltaic devices. Unfortunately, the difficulty of controlling reorganization processing and unclear underlying mechanisms impose an impediment for taking advantage of the structural reorganization in pursuit of distinctive functions in perovskite‐based devices. In this work, using above‐bandgap illumination with a small energy threshold (1.6 mW cm −2 ) triggering phase transition from orthorhombic to tetragonal in CsPbBr 3 is first reported. This photon‐induced structure reorganization is reversible and presents a fast and controllable response (
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201807922