Phase-stable wide-bandgap perovskites enabled by suppressed ion migration

Gao, Zhiyu; Zhu, Yu; Zhu, Jingwei; Chen, Cong; Yi, Zongjin; Luo, Yi; Xu, Yuliang; Wu, Kai; Ma, Tianshu; Cao, Fangfang; Chen, Zijun; Yao, Fang; Wang, Juncheng; Wang, Wenwu; Xiao, Chuanxiao; Huang, Hao; Li, Hongxiang; Lin, Qianqian; Cheng, Pei; Wang, Changlei; Hao, Xia; Zeng, Guanggen; Zhao, Dewei

doi:10.1016/j.jechem.2024.03.065

Journal of Energy Chemistry

2024

DOI: 10.1016/j.jechem.2024.03.065

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Phase-stable wide-bandgap perovskites enabled by suppressed ion migration

Zhiyu Gao,

Yu Zhu,

Jingwei Zhu

et al.

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Cited by 3 publications

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Synergistic Treatments of Bulk and Surface in Tin‐Lead Mixed Perovskite for Efficient All‐Perovskite Tandem Solar Cells

Xie,

Jin,

Cao

et al. 2024

Adv Funct Materials

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Narrow‐bandgap (NBG) perovskites have attracted significant attention for their promising potential as light‐absorbing materials in tandem solar cells. However, tin‐lead mixed perovskites face a major limitation of the facile oxidation of Sn2⁺, leading to Sn vacancies in the perovskite films. In this study, sodium triacetoxyborohydride (STAB) is introduced as an antioxidant, while potassium (5‐bromo‐2‐fluoropyridin‐3‐yl)trifluoroborate (PBFT) is employed as a surface modifier for mixed tin‐lead perovskites. This combined approach not only suppresses Sn2⁺ oxidation but also promotes the formation of high‐quality perovskite films. Furthermore, the induced energy band bending at the perovskite/C60 interface substantially enhances charge transfer. Consequently, the optimized device achieves a power conversion efficiency (PCE) of 23.41% with excellent illumination stability. When paired with a wide‐bandgap (WBG) semi‐transparent perovskite solar cell (PSC), the resulting four‐terminal (4‐T) all‐perovskite tandem solar cell attains a remarkable efficiency of 27.37%.

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Synergistic Treatments of Bulk and Surface in Tin‐Lead Mixed Perovskite for Efficient All‐Perovskite Tandem Solar Cells

Xie,

Jin,

Cao

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

Progress and prospects for all-perovskite tandem solar cells

Wu,

Zhu,

Zhao

2025

Journal of Energy Chemistry

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Predicting and analyzing stability in perovskite solar cells: Insights from machine learning models and SHAP analysis

Chen,

Zhan,

Yang

et al. 2025

Materials Today Energy

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Phase-stable wide-bandgap perovskites enabled by suppressed ion migration

Cited by 3 publications

References 67 publications

Synergistic Treatments of Bulk and Surface in Tin‐Lead Mixed Perovskite for Efficient All‐Perovskite Tandem Solar Cells

Synergistic Treatments of Bulk and Surface in Tin‐Lead Mixed Perovskite for Efficient All‐Perovskite Tandem Solar Cells

Progress and prospects for all-perovskite tandem solar cells

Predicting and analyzing stability in perovskite solar cells: Insights from machine learning models and SHAP analysis

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