Mechanistic insights into defect-governed ion migration and phase instability in mixed-halide perovskites

Journal of Materials Chemistry A 2026 Open access

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Authors: Yueran Xiang, Haimeng Xin, Chenyu Wang, Fuyi Zhou, Haitao Zhang, Pengjie Hang, Lingbo Xu, Xuegong Yu, Jingjing Xue, Deren Yang, Zhenyi Ni
DOI: 10.1039/d5ta10296k
Cited by: 2
References: 45

Abstract

We reveal defect-governed ion migration in FAPb(I 1− x Br x ) 3 cells: dark transport is dominated by halide interstitials, whereas illumination activates FA-cation migration correlated with deep-level defect density.

Fields of Study & Subjects

Perovskite Materials and Applications Inorganic Chemistry and Materials Thermal Expansion and Ionic Conductivity

Publication details

Journal / source
Journal of Materials Chemistry A
Publisher
Royal Society of Chemistry (RSC)
Volume
14
Issue
26
Pages
16493–16500
Publication date
1 January 2026
Language
EN