Indirect-to-direct bandgap transition in layered metal halide perovskite – CsPb2Br5

Autor: Xiao Wu, Xiangyu Zhang, Wei Yu, Yongxiang Zhou, Walter Wong, Weixin He, Kian Ping Loh, Xiao-Fang Jiang, Qing-Hua Xu
Rok vydání: 2023
Předmět:
Zdroj: Journal of Materials Chemistry A. 11:4292-4301
ISSN: 2050-7496
2050-7488
Popis: Non-emissive CsPb2Br5 was found to convert into a highly efficient green emitter via simple thermal or photothermal annealing, which is ascribed to the thermally induced indirect-to-direct bandgap transition associated with defect formation.
Databáze: OpenAIRE