| 摘要 |
<p>An organic electroluminescent device contains a specific amine derivative represented by formula (1) as a hole-transportation material or light-emitting material, to thereby produce an organic EL device of high efficacy and prolonged service life. <CHEM> Äwherein each of R1 to R20 represents a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a C1-C6 alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and any of the substituted or unsubstituted aryl group or any of the substituted or unsubstituted heterocyclic group may form a condensed structure.Ü</p> |
