ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL HAVING SILICON-CONTAINING FOUR MEMBERED RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Nippon Steel & Sumikin Chemical Co., Ltd.
公开号:EP2762483A1
公开(公告)日:2014-08-06
Provided are a material for an organic electroluminescent element formed of a silicon-containing four-membered ring compound, and an organic electroluminescent element using the material. The material for an organic electroluminescent element is formed of a compound represented by the following formula (1) and is used for, for example,a light-emitting layer containing a phosphorescent light-emitting dopant in an organic electroluminescent element. In the formula, X represents nitrogen or phosphorus, L's each represent an (n+1)-valent aromatic hydrocarbon group or aromatic heterocyclic group, and at least one of the L's represents an aromatic heterocyclic group. A1 to A6 each represent an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon group, an aromatic heterocyclic group, or an amino group, and n represents an integer of 0 to 3.
提供了一种用含硅四元环化合物制备有机电致发光元件的材料,以及使用该材料的有机电致发光元件。该有机电致发光元件的材料由以下式子(1)所表示的化合物组成,例如用于含有荧光杂质的发光层的有机电致发光元件。在该式中,X代表氮或磷,L分别代表(n+1)价芳香族烃基或芳香族杂环基,至少一个L代表芳香族杂环基。A1至A6分别代表烷基、环烷基、烯基、炔基、芳香族烃基、芳香族杂环基或氨基,n代表0至3的整数。