A material for organic electroluminescence device having a specific structure, in which an aromatic ring of a dibenzofuran skeleton, a carbazole skeleton, or a dibenzothiophene skeleton has a nitrogen atom as a heteroatom, and an organic electroluminescence device including an organic thin film layer which includes one or more layers between a cathode and an anode. The organic thin film layer includes a light emitting layer which includes a phosphorescent emitting material. At least one layer of the organic thin film layer includes the material for organic electroluminescence device. The organic EL device employing the material for organic EL device has a high external quantum efficiency even when driving the device at low voltage and also has a long lifetime.
具有特定结构的有机电致发光器件材料,其中
二苯并呋喃骨架、
咔唑骨架或
二苯并噻吩骨架的芳香环具有氮原子作为杂原子,并且包括有机薄膜层的有机电致发光器件,该有机薄膜层在阴极和阳极之间包括一个或多个层。有机薄膜层包括一个包含
磷光发射材料的发光层。有机薄膜层中至少有一层包含用于有机电致发光器件的材料。采用该有机电致发光器件材料的有机EL器件在低电压驱动时具有高外部量子效率,并且寿命长。