Rationally designed universal passivator for high-performance single-junction and tandem perovskite solar cells

Zhang, Zuolin; Feng, Yinsu; Ding, Jike; Ma, Quanxing; Zhang, Hong; Zhang, Jiajia; Li, Mengjia; Geng, Taoran; Gao, Wenhuan; Wang, Yang; Zhang, Boxue; Pauporté, Thierry; Tang, Jianxin; Chen, Hongjian; Chen, Jiangzhao; Chen, Cong

doi:10.1038/s41467-025-56068-6

articleNature CommunicationsJan 16, 2025GOLD OA

Rationally designed universal passivator for high-performance single-junction and tandem perovskite solar cells

ZZZuolin Zhang YFYinsu Feng JDJike Ding QMQuanxing Ma HZHong Zhang

Hebei University of Technology · Fudan University · +11 more institutions

PubMed

Indexed incrossrefdoajpubmed

Abstract

Interfacial trap-assisted nonradiative recombination hampers the development of metal halide perovskite solar cells (PSCs). Herein, we report a rationally designed universal passivator to realize highly efficient and stable single junction and tandem PSCs. Multiple defects are simultaneously passivated by the synergistic effect of anion and cation. Moreover, the defect healing effect is precisely modulated by carefully controlling the number of hydrogen atoms on cations and steric hindrance. Due to minimized interfacial energy loss, L-valine benzyl ester p-toluenesulfonate (VBETS) modified inverted PSCs deliver a power conversion efficiency (PCE) of 26.28% using vacuum flash processing technology. Moreover, by…

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Topics

Keywords

Tandem
Perovskite (structure)
Materials science
Nanotechnology
Optoelectronics
Chemistry
Crystallography

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