申请人:HODOGAYA CHEMICAL CO., LTD.
公开号:US10424742B2
公开(公告)日:2019-09-24
The organic EL device of the invention has, in order, an anode, a hole transport layer, a luminous layer, an electron transport layer and a cathode. The hole transport layer includes an indenoacridan derivative represented by the following general formula (1), and the luminous layer includes an N-aromatic substituted indenoindole compound and/or an N-aromatic substituted carbazole compound. In the formula, A1 is a divalent aromatic hydrocarbon group, a divalent aromatic heterocyclic group or a single bond, B is a monovalent aromatic hydrocarbon group; a monovalent aromatic heterocyclic group; or a disubstituted amino group having, as a substituent, a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group; and R1 to R14 each represent a hydrogen atom or an alkyl group.
本发明的有机电致发光器件依次具有阳极、空穴传输层、发光层、电子传输层和阴极。空穴传输层包括由以下通式(1)表示的茚并吖啶衍生物,发光层包括N-芳香族取代的茚并吲哚化合物和/或N-芳香族取代的咔唑化合物。式中,A1 是二价芳香烃基团、二价芳香杂环基团或单键,B 是一价芳香烃基团;一价芳香杂环基团;或具有一价芳香烃基团或一价芳香杂环基团作为取代基的二取代氨基;R1 至 R14 各代表氢原子或烷基。