Fine‐Tuning Single‐Source White‐Light Emission from All‐Inorganic Corrugated 2D Antimony‐Halide Perovskite (Advanced Optical Materials 17/2022)

Corrugated 2D antimony‐halide perovskites such as Cs3Sb2Cl9 (CSC) are promising candidates for single‐source white‐light emission due to their ultra‐broadband spectra. However, CSC has a serious luminescence quenching phenomenon due to inadequate confinement of excitons. In article number 2200930, F...

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Bibliographic Details
Published in:Advanced optical materials 2022-09, Vol.10 (17), p.n/a
Main Authors: Xu, Fei, Wang, Xiang, Li, Yue, Jiang, Beng, Dong, Zuoru, Yang, Zichen, Kang, Jiaxing, Shu, Xin, Jiang, Zuimin, Hong, Feng, Xu, Run, Ma, Zhongquan, Chen, Teng, Xu, Zhan, Xu, Haitao
Format: Article
Language:English
Subjects:
2D perovskites
homovalent substitution
self‐trapping exciton emission
white‐light lighting
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Summary:Corrugated 2D antimony‐halide perovskites such as Cs3Sb2Cl9 (CSC) are promising candidates for single‐source white‐light emission due to their ultra‐broadband spectra. However, CSC has a serious luminescence quenching phenomenon due to inadequate confinement of excitons. In article number 2200930, Fei Xu, Xiang Wang, Feng Hong and co‐workers report the homovalent substitution strategy of Sb by a small amount of rare earth cations in CSC to realize intense ultra‐broadband spectra covering the visible light region at room temperature, resulting from self‐trapping exciton emission, which could be considered to be attributed to high activation energy, type‐I‐like “straddling” band alignment, and strong electron–phonon interaction effect.
ISSN:2195-1071
2195-1071
DOI:10.1002/adom.202270069