Amorphous Ionic Polymers with Color-Tunable Ultralong Organic Phosphorescence

He Wang, Huifang Shi, Wenpeng Ye, Xiaokang Yao, Qian Wang, Chaomin Dong, Wenyong Jia, Huili Ma, Suzhi Cai, Kaiwei Huang, Lishun Fu, Yanyun Zhang, Jiahuan Zhi, Long Gu, Yanli Zhao, Zhongfu An, Wei Huang

Research output: Contribution to journalArticlepeer-review

143 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)18776-18782
Number of pages7
JournalAngewandte Chemie - International Edition
Volume58
Issue number52
DOIs
StatePublished - 19 Dec 2019

Keywords

  • ionic bonding
  • multicolor emission
  • phosphorescence
  • solid-state structures
  • π interactions

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