An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.
一种有机电致发光器件和制备该有机电致发光器件的材料。该有机电致发光器件包括在阴极和阳极之间的有机薄膜层,该有机薄膜层包括一个或多个层,其中有机薄膜层包括一个或多个发光层,至少一个发光层包括
磷光材料和主体材料。主体材料具有一个必要的结构,其中
萘环连接到
芴骨架、
二苯并呋喃骨架或
二苯并噻吩骨架。该有机电致发光器件是一种具有高效率和长寿命的
磷光器件。