METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND ILLUMINATING DEVICE

摘要

Disclosed is an organic electroluminescent element which has high driving stability and long service life. The organic electroluminescent element can be produced at low cost by forming a light-emitting layer using a composition for light-emitting layer formation in a specific environment, said composition containing a solvent and a compound that has a specific structure. Specifically disclosed is a method for manufacturing an organic electroluminescent element that comprises a light-emitting layer between a first electrode and a second electrode that is formed so as to face the first electrode. The method for manufacturing an organic electroluminescent element is characterized by comprising a light-emitting layer formation step wherein a coating film is formed by a wet film-forming process using a composition for light-emitting layer formation in an environment having an oxygen concentration of 18-22% by volume, said composition containing a solvent and a compound that is represented by general formula (1) and has a molecular weight of not less than 400. (In general formula (1), Ar31 and Ar32 each independently represents a substituted aromatic hydrocarbon ring group or an aromatic heterocyclic group. In this connection, a compound represented by general formula (1) does not have a partial structure of a nitrogen atom-containing heterocycle.)