| abstract |
An organic EL device comprising an anode, a cathode, and an organic thin film layer formed between the anode and the cathode, wherein the organic thin film layer comprises a phosphorescent light emitting layer containing a phosphorescent dopant exhibiting phosphorescence and a host, and the cathode more than the phosphorescent light emitting layer. The electron transport layer formed in the side, and the said host contains the host compound which has a substituted or unsubstituted polycyclic condensation aromatic skeleton part. |