Decoupling light- and oxygen-induced degradation mechanisms of Sn–Pb perovskites in all perovskite tandem solar cells

Author:

Bai Yang12,Tian Ruijia1,Sun Kexuan1,Liu Chang12,Lang Xiting1,Yang Ming1,Meng Yuanyuan1,Xiao Chuanxiao1,Wang Yaohua1,Lu Xiaoyi1,Wang Jingnan1,Pan Haibin1,Song Zhenhua1,Zhou Shujing1,Ge Ziyi12ORCID

Affiliation:

1. Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China

2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

This study showed PEHCl-CN can enhance the strength of Sn–I, resulting in good light stability. The subsequent doping of MBI resulted in good air stability. This enables the integrated 2T all-perovskite device to achieve an efficiency of 27.9%.

Funder

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

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