申请人:Idemitsu Kosan Co., Ltd.
公开号:EP2602243A1
公开(公告)日:2013-06-12
An organic electroluminescence device (1) includes: an anode (3); a cathode (4) being opposed to the anode (3); and an emitting layer (5) being provided between the anode (3) and the cathode (4). The emitting layer (5) includes a host material and a phosphorescent dopant material. The host material includes a monoamine derivative represented by a formula (1A) below.
In the formula (1A), each of Ar1, Ar2 and Ar4 is a substituted or unsubstituted aryl group or heteroaryl group, Ar3 is a substituted or unsubstituted arylene group or heteroarylene group, n is an integer of 0 to 5, Ar3 may be mutually the same or different when n is 2 or more, and at least one of Ar1, Ar2 and Ar4 is a group derived from a fused aromatic hydrocarbon skeleton having 3 or more rings.
有机电致发光器件(1)包括:阳极(3);与阳极(3)相对的阴极(4);以及设置在阳极(3)和阴极(4)之间的发光层(5)。发光层(5)包括主体材料和磷光掺杂材料。主体材料包括下面式(1A)所表示的单胺衍生物。
在式(1A)中,Ar1、Ar2和Ar4中的每一个是取代或未取代的芳基或杂芳基,Ar3是取代或未取代的芳撑基或杂芳撑基,n是0到5的整数,当n为2或更多时,Ar3可以相同也可以不同,且Ar1、Ar2和Ar4中至少有一个是源自具有3个或更多环的融合芳香烃骨架的基团。