Park Sangshin, Kang Seokwoo, Kwon Hyukmin, Lee Seungeun, Park Jongwook
Department of Chemical Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do, 17104, Republic of Korea.
J Nanosci Nanotechnol. 2021 Sep 1;21(9):4690-4693. doi: 10.1166/jnn.2021.19302.
Two green fluorescent materials, -Tetra--tolyl-anthracene-9,10-diamine (-Me-TAD) and -bis(2,5-dimethylphenyl)-N,N'-di--tolylanthracene-9,10-diamine (DMe--Me-TAD) including anthracene and diphenylamine moiety, were synthesized by Buchwald-Hartwig amination. In solution state, PL maximum wavelength of o-Me-TAD and DMe--Me-TAD is 518 nm and 520 nm. The doped device using o-Me-TAD as green fluorescent dopant exhibited CE of 19.78 cd/A and EQE of 5.97%. The doped device using DMe--Me-TAD as dopant exhibited CE of 22.37 cd/A and EQE of 7.02% without roll-off. Doped devices fabricated using o-Me-TAD and DMe--Me-TAD show the EL peaks at 522 and 523 nm corresponding to the Commission Internationale de L'Eclairage (CIE) coordinates of (0.29, 0.63) and (0.27, 0.61).
通过布赫瓦尔德-哈特维希胺化反应合成了两种绿色荧光材料，即 - 四 - 甲苯基 - 蒽 - 9,10 - 二胺（邻 - 甲基 - TAD）和 - 双（2,5 - 二甲基苯基）- N,N' - 二 - 甲苯基蒽 - 9,10 - 二胺（二甲基 - 邻 - 甲基 - TAD），它们含有蒽和二苯胺部分。在溶液状态下，邻 - 甲基 - TAD和二甲基 - 邻 - 甲基 - TAD的PL最大波长分别为518 nm和520 nm。使用邻 - 甲基 - TAD作为绿色荧光掺杂剂的掺杂器件的电流效率为19.78 cd/A，外量子效率为5.97%。使用二甲基 - 邻 - 甲基 - TAD作为掺杂剂的掺杂器件的电流效率为22.37 cd/A，外量子效率为7.02%，且无效率滚降。使用邻 - 甲基 - TAD和二甲基 - 邻 - 甲基 - TAD制备的掺杂器件在522和523 nm处显示出电致发光峰，对应的国际照明委员会（CIE）坐标分别为(0.29, 0.63)和(0.27, 0.61)。
