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：2026-03-26

- Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence
- Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence
- Chinese Journal of Polymer Science 2026年44卷第4期页码：980-987
- 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：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 22275182, 22075272, 51973211, 51833009, 21674111 and 52261135541), the Ministry of Science and Technology of the People’s Republic of China (the National Key R&D Program of China, No. 2022YFB4200400), the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDB0520102).;Li-Xiang Wang is an associate editor for Chinese Journal of Polymer Science and was not involved in the editorial review or the decision to publish this article. All authors declare that there are no competing interests.Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3517-1.The data supporting the findings of this study are available from the corresponding author upon reasonable request.
- DOI：10.1007/s10118-025-3517-1
  中图分类号：
- 收稿：2025-10-30，
  
  修回：2025-11-26，
  
  录用：2025-11-28，
  
  网络首发：2026-01-23，
  
  纸质出版：2026-04-05
- 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. 2026, 44, 980–987

Shan-Hui Gao, Zhi-Qiang Cheng, Xiao-Fu Wu, et al. Meta-linked Phenoselenazine-based Conjugated Polymers for Efficient Room-temperature Phosphorescence[J]. Chinese Journal of Polymer Science, 2026, 44(4): 980-987.
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. 2026, 44, 980–987 DOI： 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]. Chinese Journal of Polymer Science, 2026, 44(4): 980-987. DOI： 10.1007/s10118-025-3517-1.

摘要

By employing meta-linking strategy to enhance the contribution of the Se atom to the highest occupied molecular orbital (HOMO) and to improve spin-orbit coupling

phenoselenazine-based conjugated polymers achieve bright room-temperature phosphorescence with phosphorescence quantum yields up to 21.4% in film states.

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(P

SeZPh-

-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

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