Patent ID: 9318233
Filing Date: 2016-04-19
CPC Classification: B22F,B82Y,C01P,C08K,C09C,C09D,H01B

Claim Text:
1. A method for manufacturing a conductive metal thin film, comprising: preparing a conductive metal coating solution by adding carboxylic acid to a dispersion including a conductive metal nanoparticle with a natural oxide layer formed on the surface and therefore having a core/shell structure, and uniformly mixing the solution using sonication and planetary milling; coating the conductive metal coating solution on a top portion of a substrate, heat-treating it in a vacuum at 150 to 300° C. and removing the natural oxide layer on the surface of the conductive metal nanoparticle having the core/shell structure to form a thin film of the conductive metal nanoparticle from which the natural metal oxide layer is removed, wherein the dispersion including the conductive metal nanoparticle having the core/shell structure comprises (a) 5 to 40 wt % of conductive metal nanoparticle; (b) 50 to 90 wt % of organic solvent comprising ethylene glycol and methyl alcohol; and (c) 1 to 10 wt % of one or more dispersant selected from the group consisting of dibutyl sebacate (DBS), sodium dodecyl sulfate (SDS), sodium bis (2-ethylhexyl) sulfosuccinate (AOT), cetyltrimethylammonium bromide (CTAB), triton X-100, tween 20, poly (acrylic acid) (PAA), poly styrene-alt-maleic acid (PSM), and poly (styrene-co-acrylic acid) (PSA).