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Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
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Correlating alkyl chain length with defect passivation efficacy in perovskite solar cells
Wenhuai Feng1, Chengxi Zhang, Jun-Xing Zhong
1MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China. wuwq36@mail.sysu.edu.cn.
Chemical Communications (Cambridge, England)
|April 4, 2020
Abstract:
We, for the first time, correlated the alkyl chain length of amine molecules with the defect passivation efficacy, either on the surfaces or at grain boundaries of perovskite films. Blade-coated perovskite solar cells with long-chain amine passivation achieved an efficiency of 21.5%, accompanied by a small voltage loss of 0.35 V.
