Disclosed is a long-life organic EL device having high luminous efficiency even after storage at high temperatures. Also disclosed is an aromatic amine derivative which enables to realize such an organic EL device. The aromatic amine derivative is represented by the following general formula (1).
(In the formula (1), Ar1 is represented by the general formula (2) below, and Ar2 is represented by the general formula (3) below.)
公开了一种长寿命有机EL器件,即使在高温下储存后,其具有高发光效率。还公开了一种芳香胺衍
生物,使得可以实现这样的有机EL器件。该芳香胺衍
生物由下述通式(1)表示。(在式(1)中,Ar1由下述通式(2)表示,Ar2由下述通式(3)表示。)