| 摘要 |
PURPOSE: A blue electroluminescent polymer fluorescent composition is provided, to improve the degree of conjugation of double bonds, thereby enhancing the brightness and reducing the driving voltage. CONSTITUTION: The composition comprises a substrate; a cathode layer; a hole transfer layer; an emitting layer; an electron injection layer; and an anode layer, wherein the luminescent layer comprises the distyrylarylene unit selected from 4,4'-bis$Û2-(4-methoxyphenyl)-2-phenylvinyl$Ýbenzene derivatives represented by the formulas 1 and 2. In the formula 1, R is an alkyl group of C1-C16 or -(CH2CH2O)y-CHCH2-; R' is an alkyl or alkoxy group of C1-C12; and y is an alkylether of C1-C5. In the formula 2, R is an alkyl group of C2-C16, o-phenyl group, m-phenyl group, p-phenyl group, 1,4-naphthyl group, 2,3-naphthyl group, 2,6-naphthyl group, 1,2-cyclohexyl group, 1,3-cyclohexyl group, 1,4-cyclohexyl group; and R' is an alkyl or alkoxy group of C1-C12. |
