| abstract |
The invention provides a benzofive-membered N-containing heterocyclic heteroarylamine compound and an organic electroluminescence device thereof, and relates to the technical field of organic optoelectronic materials. The benzofive-membered N-containing heterocyclic heteroarylamine compound of the present invention has the characteristics of high refractive index, neat molecular orientation, high glass transition temperature, high thermal stability and not easy to crystallize after being heated and cooled. After the compound of the present invention is applied to the cover layer of the OLED device, it can effectively improve the light extraction efficiency, brightness and luminous efficiency of the OLED device, and can solve the problems of low refractive index, low glass transition temperature, poor thermal stability, and easy aggregation and crystallization in existing materials. question. |