Disentangling Structural Domains in Solution‐Processed 2D Lead Halide Perovskite by Transient Absorption Spectroscopy

• Published in: Laser & photonics reviews Vol. 19; no. 5
• Main Authors: Song, Mu‐Sen, Wang, Hai, Zhang, Yu‐Peng, Hu, Zi‐Fan, Zhang, Jia, Wang, Yuan, Zhao, Le‐Yi, Wang, Hai‐Yu
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.03.2025
• Subjects: 2D perovskite; Absorption spectroscopy; Bleaches; Energy levels; Lead compounds; Low temperature; Metal halides; Optoelectronic devices; Perovskites; Spectrum analysis; structural domain; Temperature dependence; transient absorption

2D lead halide perovskites (LHPs) exhibit outstanding optoelectronic properties, making them utilized in various emerging applications. Understanding their fundamental properties is urgent for improving device performance. Here, the structural domains in 2D PEA2MAn‐1PbnI3n+1 films are studied by tem...