Ion Migration in Lead-Halide Perovskites: Cation Matters

Metal halide perovskites exhibit remarkable properties for optoelectronic applications, yet their susceptibility to ion migration poses challenges for device stability. Previous research has predominantly focused on the migration of the halide ions. However, the migration of cations, which also has...

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Bibliographic Details
Published in:The journal of physical chemistry letters 2024-02, Vol.15 (4), p.1006-1018
Main Authors: Niu, Kai, Wang, Chenyang, Zeng, Jiejun, Wang, Zirui, Liu, Yang, Wang, Linjun, Li, Cheng, Jin, Yizheng
Format: Article
Language:English
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Summary:Metal halide perovskites exhibit remarkable properties for optoelectronic applications, yet their susceptibility to ion migration poses challenges for device stability. Previous research has predominantly focused on the migration of the halide ions. However, the migration of cations, which also has a significant influence on the device performance, is largely overlooked. In this Perspective, we review the migration of cations and their impacts on perovskite materials and devices. Special attention shall be devoted to recent insights into the migration of L-site organic cations in 2D/3D perovskites. We outline inspirations and directions for further research into the cation migration of perovskites, highlighting new possibilities in advancing perovskite optoelectronics.
ISSN:1948-7185
1948-7185
DOI:10.1021/acs.jpclett.3c03451