Unified theory for light-induced halide segregation in mixed halide perovskites

Mixed halide perovskite undergoes halide segregation under illumination, which impairs its functionality as solar cells. Bobbert et al. present a unified thermodynamic theory to explain the phase separation behaviour that takes into account both ground state compositional and electronic part of free...

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Bibliographic Details
Main Authors: Zehua Chen, Geert Brocks, Shuxia Tao, Peter A. Bobbert
Format: article
Language:EN
Published: Nature Portfolio 2021
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Online Access:https://doaj.org/article/600b87bd87a9474c88e0dbb59769cadc
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Summary:Mixed halide perovskite undergoes halide segregation under illumination, which impairs its functionality as solar cells. Bobbert et al. present a unified thermodynamic theory to explain the phase separation behaviour that takes into account both ground state compositional and electronic part of free energy in the presence of photocarriers.