A blue solution type organic light-emitting diode was developed by designing a thermally activated delayed fluorescent emitter with tert-butylcarbazole donors and a methoxy substituted phenyltriazine acceptor. The methoxy substituted diphenyltriazine acceptor was adopted for both solubility through solubilizing effect of the methoxy unit and blue shifted emission color through electron donating character weakening the acceptor character of diphenyltriazine. The doping of the soluble blue emitter in the high triplet energy host provided high external quantum efficiency of 16.1% and blue color coordinate of (0.16, 0.20). The methoxy substitution in addition to the tert-butyl substitution enabled the high external quantum efficiency and deep blue color coordinate in the solution processed thermally activated delayed fluorescent devices.

通过设计具有叔丁基咔唑给体和甲氧基取代的苯基三嗪受体的热活化延迟荧光发射体，开发了蓝色溶液型有机发光二极管。通过甲氧基单元的增溶作用，使甲氧基取代的二苯基三嗪受体既具有溶解性，又通过削弱给二苯基三嗪的受体特性的供电子性而采用了蓝移发光色。高三重态能量主体中可溶性蓝色发射体的掺杂提供了16.1％的高外部量子效率和（0.16，0.20）的蓝色坐标。除叔酸外的甲氧基取代丁基取代可在溶液处理的热活化延迟荧光器件中实现较高的外部量子效率和深蓝色坐标。