| abstract |
(57) [Problem] To provide an organic EL element which can reduce the driving voltage of the organic EL element and has a long driving time. Provided is a material having a low ionization potential and a high hole mobility. SOLUTION: General formula (I) (Wherein, Ar 1 ~Ar 6, R 1 , R 2 are as described herein.) Expressed in, the hole mobility when used as a layer or band is 10- 4 cm 2 / A hole transport layer in the organic light emitting layer is formed using a phenylenediamine derivative of V ยท s or higher, and a charge injection auxiliary material is added to the organic light emitting layer. |