1. Surfactant Tween 20 Controlled Perovskite Film Fabricated by Thermal Blade Coating for Efficient Perovskite Solar Cells.
- Author
-
Lee, Kun-Mu, Chan, Shun-Hsiang, Ting, Chang-Chieh, Chen, Shih-Hsuan, Chiu, Wei-Hao, Suryanarayanan, Vembu, Hsu, Jen-Fu, Liu, Ching-Yuan, and Wu, Ming-Chung
- Subjects
SOLAR cells ,PEROVSKITE ,NONIONIC surfactants ,SURFACE active agents ,SURFACE coatings - Abstract
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 MAPbI
3 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. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF