Abnormal thermally-stimulated dynamic organic phosphorescence

Dynamic luminescence behavior by external stimuli, such as light, thermal field, electricity, mechanical force, etc., endows the materials with great promise in optoelectronic applications. Upon thermal stimulus, the emission is inevitably quenched due to intensive non-radiative transition, especial...

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Bibliographic Details
Published in:Nature communications 2024-03, Vol.15 (1), p.2134-2134, Article 2134
Main Authors: Wang, He, Ma, Huili, Gan, Nan, Qin, Kai, Song, Zhicheng, Lv, Anqi, Wang, Kai, Ye, Wenpeng, Yao, Xiaokang, Zhou, Chifeng, Wang, Xiao, Zhou, Zixing, Yang, Shilin, Yang, Lirong, Bo, Cuimei, Shi, Huifang, Huo, Fengwei, Li, Gongqiang, Huang, Wei, An, Zhongfu
Format: Article
Language:English
Subjects:
639/301/923/3931
639/301/923/966
639/638/298/923/3931
Afterglows
Electric properties
Electronics
Emission
Emissions
External stimuli
High temperature
Humanities and Social Sciences
multidisciplinary
Optoelectronics
Phosphorescence
Phosphors
Science
Science (multidisciplinary)
Smart materials
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Summary:Dynamic luminescence behavior by external stimuli, such as light, thermal field, electricity, mechanical force, etc., endows the materials with great promise in optoelectronic applications. Upon thermal stimulus, the emission is inevitably quenched due to intensive non-radiative transition, especially for phosphorescence at high temperature. Herein, we report an abnormal thermally-stimulated phosphorescence behavior in a series of organic phosphors. As temperature changes from 198 to 343 K, the phosphorescence at around 479 nm gradually enhances for the model phosphor, of which the phosphorescent colors are tuned from yellow to cyan-blue. Furthermore, we demonstrate the potential applications of such dynamic emission for smart dyes and colorful afterglow displays. Our results would initiate the exploration of dynamic high-temperature phosphorescence for applications in smart optoelectronics. This finding not only contributes to an in-depth understanding of the thermally-stimulated phosphorescence, but also paves the way toward the development of smart materials for applications in optoelectronics. In thermally stimulated phosphorescent materials a thermal stimulus inevitably quenches the emission due to intensive non radiative transition. Here, the authors report an abnormal thermally stimulated phosphorescence behavior in organic phosphors and show enhancement of phosphorescence and change of the emission color upon temperature increase.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-45811-0