| abstract |
The invention discloses a compound based on an aza-isobenzene structure. This type of compound has high Tg, good stability, and a relatively high triplet energy level. The entire molecule has good hole transport ability and high triplet energy level. Wide energy gap, and good thermal stability. The compound of the present invention is used as a hole transport/electron blocking material or a light-emitting layer material in the production of OLED light-emitting devices, which can obtain good device performance, and the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; at the same time, for the device The increase in lifespan is very obvious. |