<italic style="font-style: italic">In situ</italic> Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain

Alexander M. Mitroshin; Serguei A. Miltsov; Ilya E. Kolesnikov; Dmitriy A. Lypenko; Artem V. Dmitriev; Larisa S. Litvinova; Vladislav M. Korshunov; Ilya V. Taydakov; Elena V. Ushakova; Anastasia V. Rogova; Felix N. Tomilin; Alexander V. Yakimansky

doi:10.1007/s10118-025-3516-2

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In situ Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain

RESEARCH ARTICLE | Updated：2026-01-30

- In situ Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain
- In situ Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain
- Chinese Journal of Polymer Science 2026年44卷第2期页码：361-370
- Affiliations：
  
  a.Branch of Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre "Kurchatov Institute" – Institute of Macromolecular Compounds, 31 Bolshoy pr. V.O., Saint Petersburg 199004, Russia
  b.Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
  c.Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, 31/bld.4 Leninskiy Prospect, Moscow 119071, Russia
  d.P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1 Prospect, Moscow 119991, Russia
  e.Bauman Moscow State Technical University, Moscow 105005, Russia
  f.PhysNano Department, ITMO University, Saint Petersburg 197101, Russia
  g.Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
  h.Federal Research Center "Krasnoyarsk Science Center SB RAS", 50 Akademgorodok, Krasnoyarsk 660036, Russia
- Author bio：
  
  yakimansky@yahoo.com
- Funds：
  
  This work was financially supported by the Russian Science Foundation (No. 25-13-00300). The authors acknowledge the Centre for Optical and Laser Materials Research (SPbSU) and Saint Petersburg State University for measuring the quantum yields of luminescence within the framework of research project (No. 125021902439-8).;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3516-2.
- DOI：10.1007/s10118-025-3516-2
  中图分类号：
- 收稿：2025-10-14，
  
  录用：2025-11-25，
  
  网络出版：2026-01-22，
  
  纸质出版：2026-02-05
- Accepted：
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Mitroshin, A. M.; Miltsov, S. A.; Kolesnikov, I. E.; Lypenko, D. A.; Dmitriev, A. V.; Litvinova, L. S.; Korshunov, V. M.; Taydakov, I. V.; Ushakova, E. V.; Rogova, A. V.; Tomilin, F. N.; Yakimansky, A. V. In situ generation of carbazole-triazine thermally activated delayed fluoresscence emitters within the conjugated polymer chain. Chinese J. Polym. Sci. 2026, 44, 361–370

Alexander M. Mitroshin, Serguei A. Miltsov, Ilya E. Kolesnikov, et al. In situ Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain[J]. Chinese Journal of Polymer Science, 2026, 44(2): 361-370.
Mitroshin, A. M.; Miltsov, S. A.; Kolesnikov, I. E.; Lypenko, D. A.; Dmitriev, A. V.; Litvinova, L. S.; Korshunov, V. M.; Taydakov, I. V.; Ushakova, E. V.; Rogova, A. V.; Tomilin, F. N.; Yakimansky, A. V. In situ generation of carbazole-triazine thermally activated delayed fluoresscence emitters within the conjugated polymer chain. Chinese J. Polym. Sci. 2026, 44, 361–370 DOI： 10.1007/s10118-025-3516-2.

Alexander M. Mitroshin, Serguei A. Miltsov, Ilya E. Kolesnikov, et al. In situ Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain[J]. Chinese Journal of Polymer Science, 2026, 44(2): 361-370. DOI： 10.1007/s10118-025-3516-2.

摘要

Polymer design allows the thermally activated delayed fluoresscence emitter to form directly inside the polymer chain during the synthesis if carbazole fragment is phenyl-substituted.

Abstract

The development of polymeric materials that exhibit blue thermally activated delayed fluorescence (TADF) is of great interest for optoelectronic applications. However

achieving TADF in polymers often requires an elaborate monomer design. The high-energy local triplet state (

LE) of carbazole complicates its application despite the molecular orbital arrangement being suitable for blue emission. Here

we present an approach to polymer design that makes it possible to solve this problem. We demonstrate the

in situ

formation of a TADF donor-acceptor system during Suzuki polycondensation

creating an extended carbazole-based donor matrix coupled with a triazine acceptor. The resulting polymer exhibited efficient TADF with a low energy gap (Δ

) value if a phenyl

-substituent

enabling essential electron delocalization

was present in the carbazole moiety. This work establishes a versatile platform for developing carbazole-based TADF polymers

overcoming the fundamental limitations that hinder their widespread application.

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In situ Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain

In situ Generation of Carbazole-triazine Thermally Activated Delayed Fluoresscence Emitters within the Conjugated Polymer Chain

DOI：10.1007/s10118-025-3516-2

摘要

Abstract

关键词

Keywords

references