Thermally activated delayed fluorescence chiral molecules exhibiting photoinduced radical emission

Shujun Gong; Amjad Ali; Yudong Cao; Ying Liu; Glib V. Baryshnikov; Hans Ågren; Guoquan Zhou; Yunhui Wan; Danfeng Ye; Liangliang Zhu

doi:10.1039/D6CC01726F

Thermally activated delayed fluorescence chiral molecules exhibiting photoinduced radical emission

Shujun Gong,†^a Amjad Ali,†^b Yudong Cao,†^c Ying Liu,*^d Glib V. Baryshnikov,

^fg Hans Ågren,^bh Guoquan Zhou,*^a Yunhui Wan,*^a Danfeng Ye

*^a and Liangliang Zhu

^e

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* Corresponding authors

^a College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China
E-mail: zhougq@nbut.edu.cn, wyh@nbut.edu.cn, yedanfeng@nbut.edu.cn

^b Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, PL, Polan

^c School of Intelligent Materials and Future Energy Innovation, Fudan University, Shanghai, China

^d Institute of Translational Medicine, Shanghai University, Shanghai, P. R. China
E-mail: liuying1984@shu.edu.cn

^e State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, China

^f Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, Sweden

^g Wallenberg Initiative Materials Science for Sustainability, Department of Science and Technology, Linköping University, Norrköping, Sweden

^h Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, Sweden

Abstract

Room-temperature stable, photoinduced radical emission is achieved in chiral D–A–D′ thermally activated delayed fluorescence (TADF) molecules doped in poly(methyl methacrylate) (PMMA). Host–guest interactions suppress non-radiative decay, enhancing TADF and enabling reversible radical emission via an anti-Kasha process from higher excited states (D₂/D₃). This offers new strategies for photoresponsive materials.

Chemical Communications

Thermally activated delayed fluorescence chiral molecules exhibiting photoinduced radical emission

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Thermally activated delayed fluorescence chiral molecules exhibiting photoinduced radical emission

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