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

Authors :: Xiao Wu
Xiangyu Zhang
Wei Yu
Yongxiang Zhou
Walter Wong
Weixin He
Kian Ping Loh
Xiao-Fang Jiang
Qing-Hua Xu
Source :: Journal of Materials Chemistry A. 11:4292-4301
Publication Year :: 2023
Publisher :: Royal Society of Chemistry (RSC), 2023.
Abstract: 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.

Subjects :: Renewable Energy, Sustainability and the Environment
General Materials Science
General Chemistry

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