基于苯甲酸盐的热活化延迟荧光材料。
Benzoate-based thermally activated delayed fluorescence materials.
作者信息
Zhang Liang, Zhu Wenjing, Gao Kangkang, Wu Yun, Lu Yani, Shuai Chao, Zhang Penghui, Li Huicheng, Chen Chuan-Feng
机构信息
College of Petrochemical Engineering, Longdong University Qingyang 745000 China
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
出版信息
RSC Adv. 2023 Jul 14;13(31):21296-21299. doi: 10.1039/d3ra03289b. eCollection 2023 Jul 12.
Compounds PTZ-MBZ (methyl 3-(10-phenothiazin-10-yl)benzoate) and DMAC-MBZ (methyl 3-(9,9-dimethylacridin-10(9)-yl)benzoate) were conveniently synthesized, and they exhibited TADF properties with lifetimes of 0.80 and 2.17 μs, respectively. The spatially separated highest occupied molecular orbital and lowest unoccupied molecular orbital resulted in a very small singlet-triplet energy gap of 0.0152 eV and 0.0640 eV, respectively. Thermally activated delayed fluorescence materials with short lifetime could be used as promising luminescent materials for organic light-emitting diodes.
化合物PTZ-MBZ（3-(10-吩噻嗪-10-基)苯甲酸甲酯）和DMAC-MBZ（3-(9,9-二甲基吖啶-10(9)-基)苯甲酸甲酯）的合成方法简便，它们分别表现出0.80和2.17 μs的热激活延迟荧光（TADF）特性。空间分离的最高占据分子轨道和最低未占据分子轨道分别导致了非常小的单线态-三线态能隙，分别为0.0152 eV和0.0640 eV。具有短寿命的热激活延迟荧光材料可作为有机发光二极管有前景的发光材料。
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