| abstract |
A composition for an organic electroluminescent device is a composition for forming an organic light emitting layer of an organic electroluminescent device by wet coating process. The composition contains a phosphorescent material, a charge transport material, and a solvent, in which the phosphorescent material and the charge transport material are each an unpolymerized organic compound, and the first oxidation potential of the phosphorescent material E D + , the first reduction potential of the phosphorescent material E D − , the first oxidation potential of the charge transporting material E T + , and the first reduction potential of the charge transporting material E T − satisfy the following condition: E T − +0.1≦E D − <E T + ≦E D + −0.1 or E D − +0.1≦E T − <E D + ≦E T + −0.1. |