CONDUCTIVE FILM USING COPPER-BASED NANOPARTICLE DISPERSION AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a conducive film having low resistance by a short time and low temperature treatment and a manufacturing method therefor.SOLUTION: A manufacturing method has a step Sa1 for preparing a dispersion where a copper-based nanoparticle mainly containing CuO is dispersed stably without deposition, a step Sa2 for applying the dispersion onto a substrate and drying them to obtain a coated film mainly containing CuO, a step Sa3-1 for oxidizing the whole coated film to become CuO and controlling oxidation condition of the coated film with not processing with oxidation to CuO by heating the coated film at a temperature of 200°C or less at ambient pressure and a step Sa3-2 for heating the coated film at the temperature of 200°C or less in reductive atmosphere to reduce the coated film by a chemical reduction reaction process having an orientation to proceed with a reaction from the substrate to a surface of the coated film.SELECTED DRAWING: Figure 1