| abstract |
The invention discloses a compound with dibenzonitrogen-containing six-membered heterocyclic ring as the core and its application in organic electroluminescent devices. The compound of the present invention has higher glass transition temperature and molecular thermal stability, suitable HOMO and LUMO energy levels, and higher Eg, and can effectively improve the photoelectric performance of OLED devices and the lifespan of OLED devices through device structure optimization. |