Long-chain anionic surfactants enabling stable perovskite/silicon tandems with greatly suppressed stress corrosion

Xinlong Wang, Zhiqin Ying (), Jingming Zheng, Xin Li, Zhipeng Zhang, Chuanxiao Xiao, Ying Chen, Ming Wu, Zhenhai Yang, Jingsong Sun, Jia-Ru Xu, Jiang Sheng, Yuheng Zeng, Xi Yang (), Guichuan Xing and Jichun Ye ()
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Xinlong Wang: Chinese Academy of Sciences (CAS)
Zhiqin Ying: Chinese Academy of Sciences (CAS)
Jingming Zheng: Chinese Academy of Sciences (CAS)
Xin Li: Chinese Academy of Sciences (CAS)
Zhipeng Zhang: University of Macau
Chuanxiao Xiao: Chinese Academy of Sciences (CAS)
Ying Chen: Chinese Academy of Sciences (CAS)
Ming Wu: Chinese Academy of Sciences (CAS)
Zhenhai Yang: Chinese Academy of Sciences (CAS)
Jingsong Sun: Chinese Academy of Sciences (CAS)
Jia-Ru Xu: Celanese (China) Holding Co., Ltd. Asia Technology and Innovation Center
Jiang Sheng: Chinese Academy of Sciences (CAS)
Yuheng Zeng: Chinese Academy of Sciences (CAS)
Xi Yang: Chinese Academy of Sciences (CAS)
Guichuan Xing: University of Macau
Jichun Ye: Chinese Academy of Sciences (CAS)

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract Despite the remarkable rise in the efficiency of perovskite-based solar cells, the stress-induced intrinsic instability of perovskite active layers is widely identified as a critical hurdle for upcoming commercialization. Herein, a long-alkyl-chain anionic surfactant additive is introduced to chemically ameliorate the perovskite crystallization kinetics via surface segregation and micellization, and physically construct a glue-like scaffold to eliminate the residual stresses. As a result, benefiting from the reduced defects, suppressed ion migration and improved energy level alignment, the corresponding unencapsulated perovskite single-junction and perovskite/silicon tandem devices exhibit impressive operational stability with 85.7% and 93.6% of their performance after 3000 h and 450 h at maximum power point tracking under continuous light illumination, providing one of the best stabilities to date under similar test conditions, respectively.

Date: 2023
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DOI: 10.1038/s41467-023-37877-z

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