| abstract |
The present invention relates to a novel compound and its application, and an organic electroluminescent device comprising the compound, and the compound has the structure of the following formula: Wherein: X 1 and X 2 are each independently NR, R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 , R 29 and R 30 are each independently selected from hydrogen, deuterium Or one of the following groups substituted or unsubstituted: C6-C48 monocyclic aromatic hydrocarbon or fused-ring aromatic hydrocarbon, C3-C48 monocyclic heteroaromatic hydrocarbon or fused-ring heteroaromatic hydrocarbon, C6-C30 arylamino, C3- C30 heteroarylamino, C1-C36 alkyl, C1-C6 alkoxy, R 40 is selected from substituted C6-C48 monocyclic aromatic hydrocarbons, substituted C6-C48 fused-ring aromatic hydrocarbons, substituted or unsubstituted A kind of nitrogen-containing monocyclic heteroaromatic hydrocarbon of C3-C48, substituted or unsubstituted C3-C48 nitrogen-containing fused ring heteroaromatic hydrocarbon. When used as a light-emitting material in an OLED device, the compound of the present invention exhibits excellent device performance and stability. The present invention also protects the organic electroluminescent device using the compound of the above general formula. |