| 摘要 |
<p>An organic electroluminescence device comprising: a luminous layer containing a luminous material and a hole transport material, or a luminous layer containing a luminous material and a hole transport layer containing a hole transport material, between a pair of electrodes at least one of which is transparent or translucent, characterized in that the hole transport material contains an aromatic amine selected from the group consisting of compounds represented by the formulae (1) to (4) <CHEM> <CHEM> wherein each of Ar1, Ar2, Ar3, Ar4, Ar5 and Ar6 independently represents an aromatic hydrocarbon ring group having six or more carbon atoms or an aromatically heterocyclic compound group having four or more carbon atoms, x represents an integer of 2 or more, and each of A1, A2, A3, A4, A5, A6, A7, A8, A9, A10 and A11 independently represents a group selected from the following formulae (5) to (13) (plural A11s may be the same or different); <CHEM> <CHEM> <CHEM> wherein each of R1 to R7, R9 to R11 and R13 to R18 independently represents a member selected from the group consisting of C1-C12 alkyl and alkoxy groups, C6-C14 aryl and aryloxy groups, a nitro group and heterocyclic compound groups; when one benzene ring or pyridine ring has plural substituents, they are selected independently; each of R8 and R12 independently represents a member selected from the group consisting of a hydrogen atom and C1-C12 alkyl groups; and a, b, c, d, e, f, g, h, i, j, k, l, m, n, o and p represent integers of 0 </= a, b, g </= 5, 0 </= c, d, e, f, h, i, k, m, o, p </= 4 and 0 </= j, l, n </= 3.</p> |
