| 摘要 |
PURPOSE: A red light-emitting material, its preparation method and an organic electroluminescence device containing the material are provided, to improve chemical and electrical stabilities, heat resistance, durability, luminous efficiency, brightness and color purity. CONSTITUTION: The red light-emitting material is represented by the formula 1, wherein X is R7-CR3=CR4-; Y is -CR6=CR5-R8 or -R9; R1, R2, R3, R4, R5 and R6 are independently H, a substituted or unsubstituted alkyl, alkoxy or alkyloxy group of C1-C10, or a substituted or unsubstituted phenyl group, wherein the substituent is an alkyl, alkoxy, alkyloxy, hydroxyl, phenyl or naphthyl group, and R1, R3 and R4 or R2, R5 and R6 can form a ring; and R7, R8 and R9 are independently a 1-4 methyl-substituted or unsubstituted benzo five or six-membered hetero ring having at least one halogen, nitrogen, oxygen or sulfur atom as a ring member, a 1-4 substituted or unsubstituted phenyl group, a naphthyl group, a five or six-membered hetero ring having at least one halogen, nitrogen, oxygen or sulfur atom as a ring member, or an aminophenyl group represented by the formula 2. |
