Advanced materials (Deerfield Beach, Fla.)
Stopping Phase Separation Enables Durable Wide-Bandgap Photovoltaic Perovskites.
Xiao-Ying He, Bin Song, Kai-Li Wang, Nan Li, Lei Huang, Rui-Hao Qin, Jing Chen, Chun-Hao Chen, Yu Xia, Ilhan Yavuz, Yan-Hui Lou, Zhao-Kui Wang
Published: 202510.1002/adma.202518492
Abstract
Light-induced halide segregation presents a fundamental barrier to the longevity of wide-bandgap (WBG) mixed-halide perovskites. Herein, a multifunctional ionic polymer, polyquaternium-37, is reported as an effective grain boundary passivator to inhi…
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