Dynamic room-temperature phosphorescence by reversible transformation of photo-induced free radicals

Xiaokang Yao; Huifang Shi; Xiao Wang; He Wang; Qiuying Li; Yuxin Li; Jian Liang; Jingjie Li; Yixiao He; Huili Ma; Wei Huang; Zhongfu An

doi:10.1007/s11426-022-1255-1

Dynamic room-temperature phosphorescence by reversible transformation of photo-induced free radicals

Xiaokang Yao, Huifang Shi, Xiao Wang, He Wang, Qiuying Li, Yuxin Li, Jian Liang, Jingjie Li, Yixiao He, Huili Ma, Wei Huang, Zhongfu An

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Room-temperature phosphorescence (RTP) with a dynamic feature endows organic luminescent materials with promising application in optoelectronic fields. However, it remains a formidable challenge to obtain dynamic RTP materials. Herein, we reported a strategy for dynamic RTP via reversible transformation of radicals under external stimuli. RTP gradually disappeared with continuous UV-light irradiation owing to the conversion of NDIA to NDIA^·− in NDIA/PVA film, which can be recovered by oxidation with oxygen. Regarding the excellent reversibility and repeatability, the potential applications for round-the-clock anti-counterfeiting and tag were first demonstrated. This finding not only outlines a principle to synthesize new RTP materials with dynamic behavior, but also expands the scope of applications of dynamic RTP materials.[Figure not available: see fulltext.].

Original language	English
Pages (from-to)	1538-1543
Number of pages	6
Journal	Science China Chemistry
Volume	65
Issue number	8
DOIs	https://doi.org/10.1007/s11426-022-1255-1
State	Published - Aug 2022

Keywords

anti-counterfeiting
radical emission
room-temperature phosphorescence
supramolecular self-assembly

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10.1007/s11426-022-1255-1

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title = "Dynamic room-temperature phosphorescence by reversible transformation of photo-induced free radicals",

abstract = "Room-temperature phosphorescence (RTP) with a dynamic feature endows organic luminescent materials with promising application in optoelectronic fields. However, it remains a formidable challenge to obtain dynamic RTP materials. Herein, we reported a strategy for dynamic RTP via reversible transformation of radicals under external stimuli. RTP gradually disappeared with continuous UV-light irradiation owing to the conversion of NDIA to NDIA·− in NDIA/PVA film, which can be recovered by oxidation with oxygen. Regarding the excellent reversibility and repeatability, the potential applications for round-the-clock anti-counterfeiting and tag were first demonstrated. This finding not only outlines a principle to synthesize new RTP materials with dynamic behavior, but also expands the scope of applications of dynamic RTP materials.[Figure not available: see fulltext.].",

keywords = "anti-counterfeiting, radical emission, room-temperature phosphorescence, supramolecular self-assembly",

author = "Xiaokang Yao and Huifang Shi and Xiao Wang and He Wang and Qiuying Li and Yuxin Li and Jian Liang and Jingjie Li and Yixiao He and Huili Ma and Wei Huang and Zhongfu An",

note = "Publisher Copyright: {\textcopyright} 2022, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2022",

month = aug,

doi = "10.1007/s11426-022-1255-1",

language = "英语",

volume = "65",

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TY - JOUR

T1 - Dynamic room-temperature phosphorescence by reversible transformation of photo-induced free radicals

AU - Yao, Xiaokang

AU - Shi, Huifang

AU - Wang, Xiao

AU - Wang, He

AU - Li, Qiuying

AU - Li, Yuxin

AU - Liang, Jian

AU - Li, Jingjie

AU - He, Yixiao

AU - Ma, Huili

AU - Huang, Wei

AU - An, Zhongfu

PY - 2022/8

Y1 - 2022/8

N2 - Room-temperature phosphorescence (RTP) with a dynamic feature endows organic luminescent materials with promising application in optoelectronic fields. However, it remains a formidable challenge to obtain dynamic RTP materials. Herein, we reported a strategy for dynamic RTP via reversible transformation of radicals under external stimuli. RTP gradually disappeared with continuous UV-light irradiation owing to the conversion of NDIA to NDIA·− in NDIA/PVA film, which can be recovered by oxidation with oxygen. Regarding the excellent reversibility and repeatability, the potential applications for round-the-clock anti-counterfeiting and tag were first demonstrated. This finding not only outlines a principle to synthesize new RTP materials with dynamic behavior, but also expands the scope of applications of dynamic RTP materials.[Figure not available: see fulltext.].

AB - Room-temperature phosphorescence (RTP) with a dynamic feature endows organic luminescent materials with promising application in optoelectronic fields. However, it remains a formidable challenge to obtain dynamic RTP materials. Herein, we reported a strategy for dynamic RTP via reversible transformation of radicals under external stimuli. RTP gradually disappeared with continuous UV-light irradiation owing to the conversion of NDIA to NDIA·− in NDIA/PVA film, which can be recovered by oxidation with oxygen. Regarding the excellent reversibility and repeatability, the potential applications for round-the-clock anti-counterfeiting and tag were first demonstrated. This finding not only outlines a principle to synthesize new RTP materials with dynamic behavior, but also expands the scope of applications of dynamic RTP materials.[Figure not available: see fulltext.].

KW - anti-counterfeiting

KW - radical emission

KW - room-temperature phosphorescence

KW - supramolecular self-assembly

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U2 - 10.1007/s11426-022-1255-1

DO - 10.1007/s11426-022-1255-1

M3 - 文章

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SN - 1674-7291

VL - 65

SP - 1538

EP - 1543

JO - Science China Chemistry

JF - Science China Chemistry

IS - 8

ER -

Dynamic room-temperature phosphorescence by reversible transformation of photo-induced free radicals

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Keywords

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