| abstract |
A luminescent material, particularly an organic luminescent material,ncontaining a triarylamine derivative of formula (1):n nwherein X represents an arylene group other than a phenylene group, or andivalent heterocyclic group other than a thienylene group; Ar 1 and Ar 2 nindependently and individually represent a phenylene group or a naphthylenengroup; and R 1 through R 20 independently and individually represent anhydrogen atom, a halogen atom, a C1-C6 alkyl group, a C1-C6 alkoxy group, ansubstituted or unsubstituted amino group, a substituted or unsubstituted arylngroup, or a substituted or unsubstituted heterocyclic group, the substituted ornunsubstituted aryl group or the substituted or unsubstituted heterocyclicngroup may be condensed with the corresponding benzen ring at an arbitrarynposition of the benzen ring. Also disclosed is an organic electroluminescentndevice (organic EL device) making use of the above compound. The organicnelectroluminescent device has a long service life and exhibits high luminousnefficiency. |