通过Suzuki偶联反应合成了两种新型的供体-π桥-受体化合物,它们分别基于三苯胺-苯并噻唑,包含激发态分子内质子转移(ESIPT)和非ESIPT单元。在固态以及在不同极性溶剂的溶液中研究了它们的光物理性质。荧光团在溶液和固态下均显示出在UV区的吸收和在可见区的发射。这些化合物的光学性质高度依赖于溶剂极性。对于这两种化合物,均观察到显着的正溶剂溶变色(在极性溶剂中约30 nm的吸收和约80 nm的发射红移)。较大的斯托克斯位移(〜15000 cm -1),极性敏感的光学特性以及在溶剂和固态中非常高的量子效率(〜90%)是合成化合物的显着特征。该化合物的分子内电荷转移(ICT)特性得到了实验和计算的支持。盐致变色和分子间电荷转移现象被用于研究化合物9的ICT发射的ESIPT发射。
MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME
申请人:SAMSUNG DISPLAY CO., LTD.
公开号:US20160190468A1
公开(公告)日:2016-06-30
A material for an organic electroluminescent device and an organic electroluminescent device including the same, according to one or more embodiments of the present disclosure, include an amine derivative represented by Formula 1. When the amine derivative represented by Formula 1 is included in the emission layer, the emission efficiency of the organic electroluminescent device may be improved.