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Cited by 340

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Ultraviolet irradiation-responsive dynamic ultralong organic phosphorescence in polymeric systems

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Zhang, Yongfeng, Gao, Liang, Zheng, Xian, Wang, Zhonghao, Yang, Chaolong, Tang, Hailong, Qu, Lunjun, Li, Youbing, Zhao, Yanli·2021·Nature Communications
DOI 10.1038/s41467-021-22609-y
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Abstract

Room temperature phosphorescence (RTP) has drawn extensive attention in recent years. Efficient stimulus-responsive phosphorescent organic materials are attractive, but are extremely rare because of unclear design principles and intrinsically spin-forbidden intersystem crossing. Herein, we present a feasible and facile strategy to achieve ultraviolet irradiation-responsive ultralong RTP (IRRTP) of some simple organic phosphors by doping into amorphous poly(vinyl alcohol) matrix. In addition to the observed green and yellow afterglow emission with distinct irradiation-enhanced phosphorescence, the phosphorescence lifetime can be tuned by varying the irradiation period of 254 nm light. Significantly, the dynamic phosphorescence lifetime could be increased 14.3 folds from 58.03 ms to 828.81 ms in one of the obtained hybrid films after irradiation for 45 min under ambient conditions. As such, the application in polychromatic screen printing and multilevel information encryption is demonstrated. The extraordinary IRRTP in the amorphous state endows these systems with a highly promising potential for smart flexible luminescent materials and sensors with dynamically controlled phosphorescence.

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Metadata

Authors
Zhang, Y., Gao, L., Zheng, X., Wang, Z., Yang, C., Tang, H., Qu, L., Li, Y., & Zhao, Y.
Venue
Nature Communications
Publisher
Springer Science and Business Media LLC
Published
2021-04-16
Volume
12
Issue
1
Pages
2297-2297
ISSN
2041-1723 (ISSN-L)
DOI
10.1038/s41467-021-22609-y
OpenAlex
W3153997656
Cited by
340
References
2
FWCI
18.01
Type
journal article
Language
en
Open access
gold
Licence

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CoChat. (2026). Citation check: Ultraviolet irradiation-responsive dynamic ultralong organic phosphorescence in polymeric systems. https://app.cochat.ai/papers/10.1038/s41467-021-22609-y
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Zhang, Y., Gao, L., Zheng, X., Wang, Z., Yang, C., Tang, H., Qu, L., Li, Y., & Zhao, Y. (2021). Ultraviolet irradiation-responsive dynamic ultralong organic phosphorescence in polymeric systems. Nature Communications. https://doi.org/10.1038/s41467-021-22609-y

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