Low‐Dimensional Perovskites with Diammonium and Monoammonium Alternant Cations for High‐Performance Photovoltaics

• Published in: Advanced materials (Weinheim) Vol. 31; no. 35; pp. e1901966 - n/a
• Main Authors: Li, Pengwei, Liang, Chao, Liu, Xiao‐Long, Li, Fengyu, Zhang, Yiqiang, Liu, Xiao‐Tao, Gu, Hao, Hu, Xiaotian, Xing, Guichuan, Tao, Xutang, Song, Yanlin
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.08.2019
• Subjects: carrier extraction efficiency; Carrier transport; Cations; Crystal structure; Devices; Diffusion barriers; Electromagnetic absorption; Energy conversion efficiency; Excitons; Interlayers; low‐dimensional perovskites; Materials science; perovskite solar cells; Perovskite structure; Perovskites; Photovoltaic cells; Quantum wells; Solar cells; Solar energy; Structural analysis; ultrafast transient absorption; low-dimensional perovskites; ultrafast transient absorption; carrier extraction efficiency; perovskite solar cells

Low‐dimensional Ruddlesden–Popper (LDRP) perovskites are a current theme in solar energy research as researchers attempt to fabricate stable photovoltaic devices from them. However, poor exciton dissociation and insufficiently fast charge transfer slows the charge extraction in these devices, result...