Graded 2D/3D Perovskite Heterostructure for Efficient and Operationally Stable MA‐Free Perovskite Solar Cells

• Published in: Advanced materials (Weinheim) Vol. 32; no. 26; pp. e2000571 - n/a
• Main Authors: Yao, Qin, Xue, Qifan, Li, Zhenchao, Zhang, Kaicheng, Zhang, Teng, Li, Ning, Yang, Shihe, Brabec, Christoph J., Yip, Hin‐Lap, Cao, Yong
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.07.2020
• Subjects: 2D/3D heterostructures; ambient stability; Charge efficiency; Circuits; Crystal defects; Energy conversion efficiency; Energy dissipation; energy loss; Grain boundaries; Heterostructures; high efficiency; Materials science; MA‐free perovskite solar cells; Optoelectronics; Perovskites; Photovoltaic cells; Solar cells; Thickness; high efficiency; 2D/3D heterostructures; MA-free perovskite solar cells; energy loss; ambient stability

Almost all highly efficient perovskite solar cells (PVSCs) with power conversion efficiencies (PCEs) of greater than 22% currently contain the thermally unstable methylammonium (MA) molecule. MA‐free perovskites are an intrinsically more stable optoelectronic material for use in solar cells but comp...