Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence

Shan-Hui Gao; Zhi-Qiang Cheng; Xiao-Fu Wu; Hui Tong; Li-Xiang Wang

doi:10.1007/s10118-025-3517-1

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Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence

RESEARCH ARTICLE | Updated：2026-03-12

- Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-8(2026)
- Affiliations：
  
  a.State Key Laboratory of Polymer Science and Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  b.School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  chemtonghui@ciac.ac.cn (H.T.)
  lixiang@ciac.ac.cn (L.X.W.)
- Funds：
- DOI：10.1007/s10118-025-3517-1
  CLC：
- Received：30 October 2025，
  
  Revised：2025-11-26，
  
  Accepted：28 November 2025，
  
  Online First：23 January 2026，
  
  Published：05 April 2026
- Accepted：
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Gao, S. H.; Cheng, Z. Q.; Wu, X. F.; Tong, H.; Wang, L. X. Meta-linked phenoselenazine-based conjugated polymers for efficient room-temperature phosphorescence. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-025-3517-1

Shan-Hui Gao, Zhi-Qiang Cheng, Xiao-Fu Wu, et al. Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence[J/OL]. Chinese Journal of Polymer Science, 2026, 441-8.
Gao, S. H.; Cheng, Z. Q.; Wu, X. F.; Tong, H.; Wang, L. X. Meta-linked phenoselenazine-based conjugated polymers for efficient room-temperature phosphorescence. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-025-3517-1 DOI：

Shan-Hui Gao, Zhi-Qiang Cheng, Xiao-Fu Wu, et al. Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence[J/OL]. Chinese Journal of Polymer Science, 2026, 441-8. DOI： 10.1007/s10118-025-3517-1.

摘要

Abstract

Pure organic room-temperature phosphorescent (RTP) polymers possess good processability and flexibility over small molecular crystals. However

most of RTP polymers reported so far are based on non-conjugated polymers

and achieving efficient phosphorescent emission in RTP conjugated polymers (CPs) remains a significant challenge. Herein

we developed two RTP CPs (P(PSeZPh-

-Ph) and P(PSeZP

-Ph)) by linking the phenoselenazine units with the para- and meta-phenylene units

respectively

to form the conjugated main chains. The phenylene linker with different lingking mode manipulates the effictive

-conjugation of the polymer backbones. Comparing with the para-linked P(PSeZPh-

-Ph)

meta-linked P(PSeZPh-

-Ph) exhibit the decreased effective

-conjugation and the enhanced contribution of selenium atoms to the frontier orbitals

leading to the larger spin-orbit coupling (SOC) constants and the accelerated phosphorescence radiative decay process. The P(PSeZPh-

-Ph) achieves a phosphorescence quantum yield of 21.4% in doped polystyrene films

which is among the highest efficiencies reported to date for pure organic RTP CPs. These CPs are applied to construct phosphorescent film sensors for oxygen detection with the high quenching constants (

) up to 14.80 kPa

–1

and low detection of limit of 0.84 ppm

demostrating the potential for application in oxygen film sensors.

关键词

Keywords

references

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