| abstract |
An organic EL device includes: an anode (3) for injecting holes; a phosphorescent-emitting layer (5); a fluorescent-emitting layer (6); and a cathode (8) for injecting electrons. The phosphorescent-emitting layer (5) contains a phosphorescent host and a phosphorescent dopant for phosphorescent emission. The fluorescent-emitting layer (6) contains a fluorescent host and a fluorescent dopant for fluorescent emission. The phosphorescent host has a substituted or unsubstituted polycyclic fused aromatic skeleton and has a triplet energy gap of 2.0 eV to 3.0 eV. |