Donor–acceptor materials exhibiting deep blue emission and thermally activated delayed fluorescence with tris(triazolo)triazine
作者:Ryoga Hojo、Don M. Mayder、Zachary M. Hudson
DOI:10.1039/d1tc03480d
日期:——
photoluminescence quantum yield (PLQY) of 0.94 in toluene. In addition, the locked-planarity of the hexamethylazatriangulene (HMAT) donors induced the highest two-photon cross-section σ2 of 2928 GM, while the material also exhibited 2.9-fold enhancement in photostability compared to non-planarized triarylamines. In contrast, TTT-3TTAC undergoes thermally activated delayed fluorescence (TADF), attributed to the strongly
制备了五种基于三(三唑并)三嗪(TTT)受体的发光供体-受体化合物。在一系列发射器中,TTT-3HMAT表现出深蓝色发射,CIE( x , y ) < (0.16, 0.05) 和在甲苯中的光致发光量子产率 (PLQY) 为 0.94。此外,hexamethylazatriangulene的锁定平面性(HMAT)供体诱导的最高双光子截面σ 2 2928 GM的,同时还材料在耐光性与非平坦化三芳基胺显示出2.9倍的增强。相比之下,TTT-3TTAC经历热激活延迟荧光 (TADF),这归因于TTT-3TTAC的强烈捐赠和高度扭曲的性质N 3, N 3, N 6, N 6- tetra - p - tolyl -9 H - carbazole -3,6-diamine( TTAC )供体。总体而言,这项工作揭示了基于 TTT 的染料用于双光子成像的潜力,同时进一步揭示了将基于 TTT 的发射器设计为