COMPOUND FOR ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Nippon Steel Chemical Co., Ltd.
公开号:EP1956022A1
公开(公告)日:2008-08-13
Disclosed are an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of driving stability, and simple in constitution and a compound for use therein. The organic electroluminescent device comprises a light-emitting layer disposed between an anode and a cathode piled one upon another on a substrate and the light-emitting layer contains a phosphorescent dopant and a compound for use in an organic electroluminescent device having two or more indolocarbazole skeletons as a host material. An example of the compound having indolocarbazole skeletons for use in the device is expressed by the following formula.
本发明公开了一种提高发光效率、充分保证驱动稳定性且结构简单的有机电致发光器件(有机 EL 器件)及其化合物。该有机电致发光器件包括一个发光层,该发光层位于基板上一个叠着一个的阳极和阴极之间,该发光层含有磷光掺杂剂和一种用于有机电致发光器件的化合物,该化合物具有两个或两个以上的吲哚咔唑骨架作为宿主材料。在该装置中使用的具有吲哚咔唑骨架的化合物的一个例子用下式表示。