abstract |
The present invention relates to the technical field of organic electroluminescent devices, and more particularly, to an organic electroluminescent material and its application in organic electroluminescent devices. The organic electroluminescent material has good optoelectronic properties and is suitable for use as a The host or blue light emitting material of organic electroluminescent devices has higher device efficiency and service life, and at the same time, the compounds of the present invention have very good thermal stability and film-forming properties, and the glass transition stability is as high as 139 degrees. Organic electroluminescent devices have the advantages of low startup voltage, high efficiency, good stability and long life. |