申请人:Nippon Steel & Sumikin Chemical Co., Ltd.
公开号:EP2618394A1
公开(公告)日:2013-07-24
Provided is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. The device comprises a plurality of organic layers between an anode and a cathode piled one upon another on a substrate wherein at least one of the organic layers contains a nitrogen-containing organic compound represented by the following formula (1). In formula (1), X is N-A, an oxygen atom, or a sulfur atom; A is an alkyl group, a cycloalkyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group; and R is a hydrogen atom, an alkyl group, a cycloalkyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group.
本发明提供了一种有机电致发光器件(organic EL device),其发光效率更高,充分保证了驱动稳定性,且结构简单。该装置由多个有机层组成,有机层位于基底上的阳极和阴极之间,其中至少一个有机层含有由下式(1)表示的含氮有机化合物。式(1)中,X 是 N-A、氧原子或硫原子;A 是烷基、环烷基、芳香烃基或芳香杂环基;R 是氢原子、烷基、环烷基、芳香烃基或芳香杂环基。