Tin–lead halide perovskite solar cells with a robust hole transport layer

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D3TA07845K, Paper
Open Access Open Access
Chunyan Li, Yao Zhang, Haiyan Zhao, Zhongxun Yu, Jixiang Zhang, Peng Zhang, Han Chen
Cesium carbonate is used to modify the labile PEDOT : PSS into a robust polymer substrate, which suppresses nonradiative recombination and chemical erosion at the buried interface, enabling Sn–Pb perovskite solar cells with >23% efficiency.
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