Understanding the Decoupled Effects of Cations and Anions Doping for High-Performance Perovskite Solar Cells

Understanding the Decoupled Effects of Cations and Anions Doping for High-Performance Perovskite Solar Cells

Highlights Alkaline earth cations are successfully incorporated into perovskite lattice with the aid of sulfonic acid anions, while alkaline earth metal halides are lack of doping capacity. The sulfonic acid anions effectively regulate the crystallization of perovskite and passivate the metallic Pb0...

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Main Authors: Tianxiang Hu, Yixi Wang, Kai Liu, Jia Liu, Haoyang Zhang, Qudrat Ullah Khan, Shijie Dai, Weifan Qian, Ruochen Liu, Yanyan Wang, Chongyuan Li, Zhenru Zhang, Mingxiang Luo, Xiaofei Yue, Chunxiao Cong, Yuan Yongbo, Anran Yu, Jia Zhang, Yiqiang Zhan
Format: Article
Language:English
Published: SpringerOpen 2025-02-01
Series:Nano-Micro Letters
Subjects:
Perovskite solar cells
Interstitial doping
Effect decoupling
Ion migration
Online Access:https://doi.org/10.1007/s40820-025-01655-x
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Summary:Highlights Alkaline earth cations are successfully incorporated into perovskite lattice with the aid of sulfonic acid anions, while alkaline earth metal halides are lack of doping capacity. The sulfonic acid anions effectively regulate the crystallization of perovskite and passivate the metallic Pb0 defect states, thereby improving the power conversion efficiency of perovskite solar cells. By comparing the property of FACF3SO3 and Ca(CF3SO3)2-doped perovskite films, the impact of suppressing halide migration with an activation energy of 1.246 eV is attributed to Ca2+ cations, thus providing methodology for decoupling the effects of cations and anions.
ISSN:2311-6706
2150-5551

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