Surfactant Tween 20 Controlled Perovskite Film Fabricated by Thermal Blade Coating for Efficient Perovskite Solar Cells

Kun Mu Lee, Shun Hsiang Chan, Chang Chieh Ting, Shih Hsuan Chen, Wei Hao Chiu, Vembu Suryanarayanan, Jen Fu Hsu, Ching Yuan Liu, Ming Chung Wu

研究成果: 雜誌貢獻期刊論文同行評審

摘要

In recent years, additive engineering has received considerable attention for the fabrication of high-performance perovskite solar cells (PSCs). In this study, a non-ionic surfactant, polyoxyethylene (20) sorbitan monolaurate (Tween 20), was added as an additive into the MAPbI3 perovskite layer, and the thermal-assisted blade-coating method was used to fabricate a high-quality perovskite film. The Tween 20 effectively passivated defects and traps in the MAPbI3 perovskite films. Such a film fabricated with an appropriate amount of Tween 20 on the substrate showed a higher photoluminescence (PL) intensity and longer carrier lifetime. At the optimal concentration of 1.0 mM Tween 20, the performance of the PSC was apparently enhanced, and the champion PSC demonstrated a PCE of 18.80%. Finally, this study further explored and compared the effect on the device performance and ambient stability of the MAPbI3 perovskite film prepared by the spin-coating method and the thermal-assisted blade coating.

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文章編號2651
期刊Nanomaterials
12
發行號15
DOIs
出版狀態已出版 - 8月 2022

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