Abstract

Two blue emitting materials, 4,4'-(chrysene-6,12-diyl)bis(N,N-diphenylaniline) (TPA-C-TPA) and 12-(4-(diphenylamino)phenyl)-N,N- Diphenylchrysen-6-amine (TPA-C-DPA) were prepared with the composition of chrysene core moiety and dipenylamine (DPA) and triphenylamine (TPA) moieties as the side group. Two compounds were used to emitting layer as the dopants (EMLs) in doped device. The doped device using TPA-C-TPA showed current efficiency of 2.49 cd/A and external quantum efficiency of 4.26% at a current density of 10 mA/cm². The doped device using TPA-C-DPA exhibited CE of 2.28 cd/A and EQE of 3.52% at a current density of 10 mA/cm². TPA-C-TPA and TPA-C-DPA show the Commission Internationale de L’Eclairage (CIE) coordinates of (0.15, 0.06) and (0.14, 0.06) corresponding to the electroluminescence peak at 439 and 444 nm.

摘要

两种蓝色发光材料，4,4'-(6,12-二基)双(N,N-二苯基苯胺) (TPA-C-TPA) 和 12-(4-(二苯基氨基)苯基)-N,N-以 6 为核心，以二苯胺（DPA）和三苯胺（TPA）为侧基，制备了二苯-6-胺（TPA-C-DPA）。两种化合物被用于发光层作为掺杂器件中的掺杂剂（EML）。使用TPA-C-TPA的掺杂器件在10 mA/cm ²的电流密度下表现出2.49 cd/A的电流效率和4.26%的外量子效率。使用TPA-C-DPA的掺杂器件在10 mA/cm ^{2的电流密度下表现出2.28 cd/A的CE和3.52%的EQE}。TPA-C-TPA 和 TPA-C-DPA 显示国际照明委员会 (CIE) 坐标 (0.15, 0.06) 和 (0.14, 0.06)，对应于 439 和 444 nm 处的电致发光峰。