Luminescent device with a triarylamine compound

A luminescent device comprising a pair of electrodes and a luminescent layer disposed therebetween, the luminescent layer comprises a compound represented by the following general formula (1) and a compound represented by the following general formula (2):

• 423
• wherein R1 and R2 are each independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryl group;
• Ar1, Ar2, Ar3, and Ar4 are each a substituted or unsubstituted aryl or heterocyclic group, which may be the same or different from each other;
• both Ar1 and Ar3 are fused aromatic rings;
• and at least one of R1 and R2 is a hydrogen, a halogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted alkoxy group;
• and
• 424
• wherein R3 and R4 are each independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryl group;
• Ar5, Ar6, Ar7, and Ar8 are each a substituted or unsubstituted aryl or heterocyclic group, which may be the same or different from each other;
• at least one of Ar5, Ar6, Ar7, and Ar8 is a n-conjugated aromatic hydrocarbon having 12 or more carbon atoms selected from the group consisting of a polyphenyl and a stilbene;
• and at least one of R3 and R4 is a halogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted alkoxy group.