| abstract |
The invention discloses a boron-containing six-membered heterocyclic compound and its application in organic electroluminescent devices. The compound has a benzo six-membered ring as the core, and boron is located on the central six-membered ring; the compound has molecular It is not easy to crystallize, not easy to aggregate, and has the characteristics of good film-forming properties. When the compound of the present invention is used as a light-emitting layer material of an organic electroluminescent device, the current efficiency, power efficiency and external quantum efficiency of the device are all greatly improved; meanwhile, the life of the device is significantly improved. |