Defect Passivation by a D–A–D Type Hole-Transporting Interfacial Layer for Efficient and Stable Perovskite Solar Cells

• Published in: ACS energy letters Vol. 6; no. 5; pp. 2030 - 2037
• Main Authors: Wang, Yu-Duan, Wang, Yang, Shao, Jiang-Yang, Lan, Yangjie, Lan, Zhong-Rui, Zhong, Yu-Wu, Song, Yanlin
• Format: Journal Article
• Language: English
• Published: American Chemical Society 14.05.2021

In this work, we present a series of donor–acceptor–donor type of small molecules (BDAD, ODAD, and DDAD) based on the triphenylamine (TPA) and dithienopyrrolobenzothiadiazole (DTPBT) units, which are distinguished by alkyl chains of different lengths grafted on the DTPBT unit, as a hole-transporting...