MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
申请人:Idemitsu Kosan Co., Ltd.
公开号:EP2660890A1
公开(公告)日:2013-11-06
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.
一种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一个氮原子作为杂原子,以及一种有机电致发光器件,包括一个有机薄膜层,该薄膜层包括阴极和阳极之间的一层或多层。有机薄膜层包括发光层,发光层包括磷光发光材料。有机薄膜层的至少一层包括用于有机电致发光器件的材料。采用有机电致发光器件材料的有机电致发光器件即使在低电压下驱动,也具有很高的外部量子效率,而且使用寿命长。