CHARGE-TRANSPORTING VARNISH FOR SPRAY OR INKJET APPLICATION

摘要

PROBLEM TO BE SOLVED: To provide a charge transporting varnish that can form a uniform and smooth charge-transporting thin film by a spray method on an exposed electrode portion such as ITO or IZO of a substrate on which a structure of a simple or complicated pattern is formed beforehand.SOLUTION: A charge transporting varnish for spray or inkjet application comprises: a charge transporting material made of charge transporting monomer or charge transporting oligomer having a number average molecular weight of 200 to 5,000, or the transporting organic material made of the charge transporting material and an electron-accepting dopant material or a hole-accepting dopant material; a predetermined good solvent; a predetermined poor solvent with high leveling properties; and a predetermined volatile poor solvent.