ORGANIC EL MATERIAL-CONTAINING SOLUTION, METHOD FOR FORMING THIN FILM OF ORGANIC EL MATERIAL, THIN FILM OF ORGANIC EL MATERIAL, AND ORGANIC EL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an organic EL material-containing solution which is applicable to coating method. SOLUTION: The organic EL material-containing solution contains an organic EL material, a solvent and a viscosity adjusting agent. The organic EL material contains a host and a dopant. The host is represented by the formula (1), and has a solubility of not less than 2 wt.% in the solvent. The solvent is composed of an aromatic solvent, and the viscosity adjusting agent is an alcohol solution or a solution of an alkyl-substituted aromatic compound having 4 or more carbon atoms. COPYRIGHT: (C)2008,JPO&INPIT