| abstract |
At least one organic thin film layer including a material for an organic electroluminescent device having a partial structure having a nitrogen atom as a hetero atom in an aromatic ring of a dibenzofuran, carbazole or dibenzothiophene skeleton, and a light emitting layer between the cathode and the anode; Wherein the light emitting layer contains a phosphorescent material, and at least one layer of the organic thin film layer is high in external quantum efficiency even when driven at low voltage by an organic electroluminescent device containing the organic electroluminescent device material of the present invention, Moreover, the organic EL element of long life and the material for organic electroluminescent element which implement | achieve it are provided. |