PROCESS FOR PRODUCING TRANSPARENT CONDUCTIVE NANOPARTICLE COATING FILM

摘要

PROBLEM TO BE SOLVED: To provide a process for forming a substantially transparent and electrically conductive film.

SOLUTION: The process for forming the substantially transparent and electrically conductive film comprises the steps of (a) adding a nanocrystalline material to water, the nanocrystalline material comprising primary particles of a metal or metal oxide having a substantially spherical shape; (b) mixing the nanocrystalline material and water to form a substantially stable aqueous dispersion; (c) adding a film forming agent of the amount effective to provide the uniform and defect-free film having <105Ω/sq. sheet resistance to the aqueous dispersion; (d) adding a diluent to the aqueous dispersion to make a formulation; (e) applying the formulation to a substrate; and (f) heating the substrate to harden the nanocrystalline particles in the film. The heating step is carried out at the temperature of about 300 to about 800°C.

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