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Photoluminescence of Singlet/Triplet Self‐Trapped Excitons in Sb 3+ ‐Based Metal Halides
Author(s) -
Jing Yuyu,
Liu Ying,
Li Mingze,
Xia Zhiguo
Publication year - 2021
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.202002213
Subject(s) - halide , metal halides , photoluminescence , materials science , luminescence , exciton , metal , singlet state , optoelectronics , photochemistry , nanotechnology , inorganic chemistry , chemistry , atomic physics , condensed matter physics , physics , excited state , metallurgy
Emerging lead‐free metal halides with low toxicity and unparalleled optoelectronic properties have attracted growing research interests, also demonstrating extensive application potentials. Among these, Sb 3+ ‐based all‐inorganic/organic–inorganic hybrid metal halides become a vital group due to the special energy level distribution along with diverse optical properties. However, there remains a gap in understanding the relationship between the crystal structure and the radiation process of involved Sb 3+ emission. Herein, the existing reports about Sb 3+ ‐based luminescent metal halides are revisited and their structure–luminescence–application relationship is explored, and it is further established that the triplet self‐trapped excitons (STEs) emission of Sb 3+ varies in different crystallographic environments and endows tunable luminescent performance. This work aims to provide constructive strategies in the further exploitation of Sb 3+ ‐based metal halides, and also guides the structural design and photoluminescence tuning of doped metal halide materials.