Zwitterion Dual‐Modification Strategy for High‐Quality NiOx and Perovskite Films for Solar Cells

• Published in: Small Vol. 20; no. 30; pp. e2400356 - n/a
• Main Authors: Wang, Xianzhao, Jiang, Jun, Liu, Ziyan, Li, Aijun, Miyasaka, Tsutomu, Wang, Xiao‐Feng
• Format: Journal Article
• Language: English; Japanese
• Published: Weinheim Wiley 01.07.2024; Wiley Subscription Services, Inc
• Subjects: Buffer layers; Carboxyl group; dual‐passivation; Electrical properties; Energy conversion efficiency; high‐quality films; Interface reactions; L‐tryptophan; NiOx‐based perovskite solar cells; Optical properties; Perovskites; Photovoltaic cells; Redox reactions; Solar cells; Surface defects; Tryptophan; Zwitterions

Nickel oxide (NiOx) has been limited in use as a hole transport layer for its low conduction, surface defects, and redox reactions with the perovskite layer. To address these issues, the incorporation of zwitterion L‐tryptophan (Trp) is proposed at the NiOx/Trp interface. The carboxyl group of Trp e...