The invention is to provide an organic EL device having a long life time
that can reduce the driving voltage of the organic EL device, and to
provide a material having a small ionization potential and exhibiting a
large hole mobility by using as a layer or a zone. The organic
electroluminescence device comprises a pair of electrodes and an organic
light emitting layer sandwiched in the electrodes, characterized in that
a hole transporting zone provided between the electrodes comprises the
phenylenediamine derivative represented by the specific structural
formulae, and the phenylenediamine derivative has a hole mobility of
10.sup.-4 cm.sup.2/Vs or more upon using as a layer or a zone, with the
organic light emitting layer containing a charge injection auxiliary.