| abstract |
The application discloses an organic compound with the following general structural formula: R 1 , R 2 , R 3 and R 4 are independently selected from hydrogen, substituted or unsubstituted C4-C40 aryl, substituted or unsubstituted C4-C40 heteroaryl, substituted or unsubstituted C4-C40 fused Aryl, substituted or unsubstituted C4-C40 fused heteroaryl. The organic compound of the present invention is a material with thermally activated delayed fluorescence properties. As the light-emitting layer of an organic electroluminescent device but not limited to the host or guest material of the light-emitting layer, since the material can utilize triplet energy, it can greatly improve the device performance. |