From the journal:

Chemical Communications

Exploring the triplet state properties of thio-benzothioxanthene imides with applications in TTA-upconversion and photopolymerization†

Xiaoping Chen,a   Hui Liang, ORCID logo *a   Xitong He, ORCID logo a   Weiqiang Li,a   Zhiyao Nian,a   Zafar Mahmood, ORCID logo a   Yanping Huo ORCID logo a  and  Shaomin Ji ORCID logo *a  

* Corresponding authors

a School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, P. R. China
E-mail: smji@gdut.edu.cn

Abstract

Thio-benzothioxanthene imide (BTXI) exhibits long excited state lifetime (τT = 17.7 μs) and high ISC efficiency (ΦΔ = 97%). For the first time, BTXI derivatives were used as photosensitizers for triplet–triplet annihilation upconversion, achieving the highest efficiency of 13.8%. In addition, thio-BTXI derivatives were used as photoinitiators for photopolymerization, resulting in a series of green light-activated radical polymerization systems.

Graphical abstract: Exploring the triplet state properties of thio-benzothioxanthene imides with applications in TTA-upconversion and photopolymerization

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Article information

DOI
https://doi.org/10.1039/D4CC04049J
Article type
Communication
Submitted
09 Aug 2024
Accepted
05 Sep 2024
First published
07 Sep 2024

Chem. Commun., 2024, Advance Article

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Exploring the triplet state properties of thio-benzothioxanthene imides with applications in TTA-upconversion and photopolymerization

X. Chen, H. Liang, X. He, W. Li, Z. Nian, Z. Mahmood, Y. Huo and S. Ji, Chem. Commun., 2024, Advance Article , DOI: 10.1039/D4CC04049J

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