Facilitating intrinsic delayed fluorescence of conjugated emitters by inter-chromophore interaction.
Autor: | Gao Y; Institute of Molecular Plus, Tianjin University Tianjin 300072 P. R. China xiaonanma@tju.edu.cn., Sun Y; State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 P. R. China dongbing.chem@nankai.edu.cn., Guo Z; Institute of Molecular Plus, Tianjin University Tianjin 300072 P. R. China xiaonanma@tju.edu.cn., Yu G; Institute of Molecular Plus, Tianjin University Tianjin 300072 P. R. China xiaonanma@tju.edu.cn., Wang Y; Institute of Molecular Plus, Tianjin University Tianjin 300072 P. R. China xiaonanma@tju.edu.cn., Wan Y; College of Chemistry, Beijing Normal University Beijing 100875 P. R. China., Han Y; Engineering Research Center for Nanomaterials, Henan University Kaifeng 475004 P. R. China., Yang W; Engineering Research Center for Nanomaterials, Henan University Kaifeng 475004 P. R. China., Zhao D; State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 P. R. China dongbing.chem@nankai.edu.cn., Ma X; Institute of Molecular Plus, Tianjin University Tianjin 300072 P. R. China xiaonanma@tju.edu.cn. |
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Jazyk: | angličtina |
Zdroj: | Chemical science [Chem Sci] 2024 Sep 20. Date of Electronic Publication: 2024 Sep 20. |
DOI: | 10.1039/d4sc05494f |
Abstrakt: | Delayed fluorescence (DF) is a unique emitting phenomenon of great interest for important applications in organic optoelectronics. In general, DF requires well-separated frontier orbitals, inherently corresponding to charge transfer (CT)-type emitters. However, facilitating intrinsic DF for local excited (LE)-type conjugated emitters remains very challenging. Aiming to overcome this obstacle, we demonstrate a new molecular design strategy with a DF-inactive B,N-multiple resonance (MR) emitter as a model system. Without the necessity of doping with heavy atoms, we synthesized a co-facial dimer in which an excimer-like state (S Competing Interests: The authors declare no competing financial interest. (This journal is © The Royal Society of Chemistry.) |
Databáze: | MEDLINE |
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