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Amorphous Ionic Polymers with Color‐Tunable Ultralong Organic Phosphorescence
Author(s) -
Wang He,
Shi Huifang,
Ye Wenpeng,
Yao Xiaokang,
Wang Qian,
Dong Chaomin,
Jia Wenyong,
Ma Huili,
Cai Suzhi,
Huang Kaiwei,
Fu Lishun,
Zhang Yanyun,
Zhi Jiahuan,
Gu Long,
Zhao Yanli,
An Zhongfu,
Huang Wei
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201911331
Subject(s) - phosphorescence , amorphous solid , phosphor , polymer , materials science , luminescence , ionic bonding , photochemistry , ionization , nanotechnology , fluorescence , chemical engineering , chemistry , optoelectronics , ion , organic chemistry , optics , physics , composite material , engineering
Amorphous purely organic phosphorescence materials with long‐lived and color‐tunable emission are rare. Herein, we report a concise chemical ionization strategy to endow conventional poly(4‐vinylpyridine) (PVP) derivatives with ultralong organic phosphorescence (UOP) under ambient conditions. After the ionization of 1,4‐butanesultone, the resulting PVP‐S phosphor showed a UOP lifetime of 578.36 ms, which is 525 times longer than that of PVP polymer itself. Remarkably, multicolor UOP emission ranging from blue to red was observed with variation of the excitation wavelength, which has rarely been reported for organic luminescent materials. This finding not only provides a guideline for developing amorphous polymers with UOP properties, but also extends the scope of room‐temperature phosphorescence (RTP) materials for practical applications in photoelectric fields.