Fused tetracyclic tris[1,2,4]triazolo[1,3,5]triazine as a novel rigid electron acceptor for efficient thermally activated delayed fluorescence emitters,RSC Advances

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Fused tetracyclic tris[1,2,4]triazolo[1,3,5]triazine as a novel rigid electron acceptor for efficient thermally activated delayed fluorescence emitters
RSC Advances ( IF 3.9 ) Pub Date : 2020-4-20 , DOI: 10.1039/d0ra01925a
Suraj Kumar Pathak _{1,

2} , Yepeng Xiang ₃ , Manli Huang ₃ , Taian Huang ₁ , Xiaosong Cao ₁ , He Liu ₁ , Guohua Xie ₃ , Chuluo Yang _{1,

3}

Affiliation

Tris[1,2,4]triazolo[1,3,5]triazine, a new acceptor based on a fused triazole and triazine moiety, is utilized to construct D₃–A star-shaped tristriazolotriazine derivatives, named 3,7,11-tris(4-(10H-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(9H)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%.

中文翻译：

稠合四环三[1,2,4]三唑并[1,3,5]三嗪作为高效热激活延迟荧光发射器的新型刚性电子受体

Tris[1,2,4]triazolo[1,3,5]triazine，一种基于稠合三唑和三嗪部分的新型受体，用于构建 D ₃ -A 星形三唑并三嗪衍生物，命名为 3,7,11 -tris(4-(10 H -phenoxazin-10 yl)phenyl)tris([1,2,4]triazolo)[1,3,5]triazine ( TTT-PXZ ) and 3,7,11-tris(4 -(9,9-二甲基吖啶-10(9 H )基)苯基)三([1,2,4])三唑并[1,3,5]三嗪( TTT-DMAC )。TTT-PXZ和TTT -DMAC发射器均具有 TADF 活性和 AIEE 特性。因此，基于TTT-PXZ绿色发射器的溶液处理 OLED 表现出良好的性能，外量子效率 (EQE) 高达 6.2%。

更新日期：2020-04-20

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