ORGANIC ELECTROLUMINESCENCE COMPOSITION, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE ELEMENT, SOLUTION OF MATERIAL FOR ORGANIC ELECTROLUMINESCENCE ELEMENT, AND ORGANIC ELECTROLUMINESCENCE ELEMENT

摘要

An organic electroluminescence composition containing at least two compounds having both hole transport capability and electron transport capability and having a specified structure; an organic electroluminescence composition containing at least one compound having both hole transport capability and electron transport capability and having a specified structure, and a different compound that has an electron transport skeleton; a material for an organic electroluminescence element obtained using an aromatic heterocyclic derivative; a solution of the material for an organic electroluminescence element; and an organic electroluminescence element.