Thermodynamic inhibition of bromine-rich phase nucleation in wide-bandgap perovskites for operationally stable tandem solar cells

Energy & Environmental Science 2026

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Authors: Xueying Yang, Zhongliang Yan, Shibo Wang, Pengfei Fu, Chunyan Deng, Guang Yang, Yu Lou, Zhaojin Wang, Miao Zeng, You Chen, Zhicong Zhou, Xinyu Ye
+12 more Xiaokang Sun, Chengwei Shan, Yuanmiao Sun, Aung Ko Ko Kyaw, Hanlin Hu, Zhifang Shi, Zaiwei Wang, Xinbo Yang, Xiaohong Zhang, Gang Li, Yang Bai, Hui-Ming Cheng
DOI: 10.1039/d5ee06815k
Cited by: 14
References: 76

Abstract

We report a preemptive stabilization strategy for wide-bandgap perovskites, where K + suppresses Br-rich nucleation thermodynamically and synergizes with SCN − to form a 2D phase at grain boundaries, enabling efficient and stable tandem solar cells.

Fields of Study & Subjects

Perovskite Materials and Applications solar cell performance optimization Machine Learning in Materials Science

Publication details

Journal / source
Energy & Environmental Science
Publisher
Royal Society of Chemistry (RSC)
Volume
19
Issue
7
Pages
2273–2288
Publication date
1 January 2026
Language
EN