COMPOSITION FOR ORGANIC ELECTROLUMINESCENT ELEMENTS AND
ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:US20150021587A1
公开(公告)日:2015-01-22
The objection of invention is to provide a composition for organic electroluminescent element having a smaller amount of foreign substance. The invention is a composition for organic electroluminescent element, which is for forming at least one layer selected from the group consisting of a light emitting layer, a hole injection layer and a hole transportation layer, wherein the composition comprises an aromatic amine polymer having a weight average molecular weight of 3,000 to 1,000,000 and a solvent, and a Zn concentration in the composition is less than 0.5 ppm.