ORGANIC ELECTROLUMINESCENT DEVICE AND MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Idemitsu Kosan Co., Ltd.
公开号:EP2166587A1
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. The organic thin-film layer includes an emitting layer. The emitting layer contains a phosphorescent material and a host material represented by the following formula (1).
Ra-Ar1-Rb (1)
In the formula, Ar1, Ra and Rb each represent a substituted or unsubstituted benzene ring or a fused aromatic hydrocarbon ring selected from a substituted or unsubstituted naphthalene ring, a substituted or unsubstituted chrysene ring, a substituted or unsubstituted fluoranthene ring, a substituted or unsubstituted phenanthrene ring, a substituted or unsubstituted benzophenanthrene ring, a substituted or unsubstituted dibenzophenanthrene ring, a substituted or unsubstituted triphenylene ring, a substituted or unsubstituted benzo[a]triphenylene ring, a substituted or unsubstituted benzochrysene ring, a substituted or unsubstituted benzo[b]fluoranthene ring and a substituted or unsubstituted picene ring. Substituents for Ra and Rb are not aryl groups.
一种有机电致发光器件包括:阴极;阳极;以及位于阴极和阳极之间的单层或多层有机薄膜层。有机薄膜层包括发光层。发光层包含磷光材料和由下式(1)表示的主材料。
Ra-Ar1-Rb (1)
式中,Ar1、Ra 和 Rb 分别代表一个取代或未取代的苯环或一个融合芳香烃环,它们选自取代或未取代的萘环、取代或未取代的菊烯环、取代或未取代的荧蒽环、取代或未取代的菲环、取代或未取代的二苯并菲环、取代或未取代的二苯并菲环、取代或未取代的三亚 苯环、取代或未取代的苯并[a]三亚苯环、取代或未取代的苯并芘环、取代或未取代的 苯并[b]荧蒽环以及取代或未取代的皮烯环。Ra 和 Rb 的取代基不是芳基。