COMPOSITION FOR FORMING CHARGE-TRANSPORTING THIN FILM FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, CHARGE-TRANSPORTING THIN FILM FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, AND ORGANIC ELECTROLUMINESCENT ELEMENT

摘要

Provided is a composition for forming a charge-transporting thin film for organic electroluminescent elements, which contains a dopant material that is composed of a nitrogen-containing heteroaromatic compound substituted by a cyano group and represented by one of formulae (D1)-(D5), a charge-transporting material and an organic solvent, and which is characterized in that the dopant material and the charge-transporting material are dissolved in the organic solvent.