Precursor Engineering of Vapor-Exchange Processes for 20%-Efficient 1 cm2 Inverted-Structure Perovskite Solar Cells

• Published in: ACS applied materials & interfaces Vol. 12; no. 37; pp. 41303 - 41311
• Main Authors: Cao, Huanqi, Dong, Zheng, Qiu, Yuan, Li, Jinzhao, Wang, Yujie, Li, Ziyi, Yang, Liying, Yin, Shougen
• Format: Journal Article
• Language: English; Japanese
• Published: American Chemical Society 16.09.2020
• Subjects: Energy, Environmental, and Catalysis Applications; FAPbI3; perovskite solar cell; vapor solid reaction; precursor engineering; vapor-assisted solution process

Due to mass diffusion issues, it is challenging to prepare black-phase thick formamidinium-based perovskite (FAPbI3) films via vapor approaches. Precursor engineering is employed here to overcome the dilemma of thorough reaction and black-phase stabilization of FAPbI3 in a sequential vapor approach....