Activation of Self‐Trapped Emission in Stable Bismuth‐Halide Perovskite by Suppressing Strong Exciton–Phonon Coupling

• Published in: Advanced functional materials Vol. 31; no. 31
• Main Authors: Zhou, Lei, Liao, Jin‐Feng, Qin, Youcheng, Wang, Xu‐Dong, Wei, Jun‐Hua, Li, Ming, Kuang, Dai‐Bin, He, Rongxing
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.08.2021
• Subjects: all‐inorganic perovskites; Bismuth; bismuth halide perovskites; Coupling; Excitation spectra; Excitons; exciton–phonon coupling; Lead compounds; lead‐free perovskites; Materials science; Metal halides; Optoelectronics; Perovskites; Phonons; Photoluminescence; self‐trapped emission

All‐inorganic bismuth‐halide perovskites are promising alternatives for lead halide perovskites due to their admirable chemical stability and optoelectronic properties; however, these materials deliver inferior photoluminescence (PL) properties, severely hindering their prospects in lighting applica...