Pathak Suraj Kumar, Xiang Yepeng, Huang Manli, Huang Taian, Cao Xiaosong, Liu He, Xie Guohua, Yang Chuluo
Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University Shenzhen 518060 P. R. China
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University Shenzhen 518060 P. R. China.
RSC Adv. 2020 Apr 20;10(26):15523-15529. doi: 10.1039/d0ra01925a. eCollection 2020 Apr 16.
Tris[1,2,4]triazolo[1,3,5]triazine, a new acceptor based on a fused triazole and triazine moiety, is utilized to construct D-A star-shaped tristriazolotriazine derivatives, named 3,7,11-tris(4-(10-phenoxazin-10 yl)phenyl)tris([1,2,4]triazolo)[1,3,5]triazine (TTT-PXZ) and 3,7,11-tris(4-(9,9-dimethylacridin-10(9)yl)phenyl)tris([1,2,4])triazolo[1,3,5]triazine (TTT-DMAC). Both TTT-PXZ and TTT-DMAC emitters feature TADF activities and AIEE properties. Consequently, solution processed OLEDs based on TTT-PXZ green emitters exhibited good performances, with an external quantum efficiency (EQE) of up to 6.2%.
三[1,2,4]三唑并[1,3,5]三嗪，一种基于稠合三唑和三嗪部分的新型受体，被用于构建D-A型星形三唑并三嗪衍生物，命名为3,7,11-三(4-(10-吩恶嗪-10基)苯基)三([1,2,4]三唑并)[1,3,5]三嗪(TTT-PXZ)和3,7,11-三(4-(9,9-二甲基吖啶-10(9)基)苯基)三([1,2,4])三唑并[1,3,5]三嗪(TTT-DMAC)。TTT-PXZ和TTT-DMAC发光体均具有热激活延迟荧光(TADF)活性和聚集诱导发光增强(AIEE)特性。因此，基于TTT-PXZ绿色发光体的溶液处理有机发光二极管表现出良好的性能，外部量子效率(EQE)高达6.2%。
