ORGANIC ELECTROLUMINESCENT DEVICE AND MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Idemitsu Kosan Co., Ltd.
公开号:EP2166585A1
公开(公告)日:2010-03-24
An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes an emitting layer, and the emitting layer contains: a phosphorescent material; and a host material represented by the following formula (1).
Ra-Ar1-Ar2-Rb (1)
In the formula, Ar1, Ar2, Ra and Rb each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted fused aromatic hydrocarbon group selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring, a picene ring and a benzo[b]fluoranthene ring.
一种有机电致发光器件包括:阴极;阳极;以及设置在阴极和阳极之间的单层或多层有机薄膜层。在有机电致发光器件中,有机薄膜层包括发光层,发光层包含:磷光材料;以及由下式(1)表示的主材料。
Ra-Ar1-Ar2-Rb (1)
式中,Ar1、Ar2、Ra 和 Rb 分别代表一个取代或未取代的苯环,或一个取代或未取代的融合芳香烃基团,该基团选自由以下组成的组菊烯环、荧蒽环、三亚苯环、菲环、苯并菲环、二苯并菲环、苯并三亚 苯环、苯并菊烯环、噻吩环和苯并[b]荧蒽环。