Aqueous compositions, methods of producing conductive thin films using the same, conductive thin films produced thereby, and electronic devices including the same
AssigneesSamsung Electronics Co., Ltd., Research & Business Foundation Sungkyunkwan University
InventorsKwang Hee Kim, Daejin Yang, Jong Wook Roh, Rujun Ma, Hyeon Cheol Park, Seung-Hyun Baik, Jae-Young Choi
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Abstract
An aqueous composition including: a conductive metal nanoparticle having an organic compound disposed on a surface of the conductive metal nanoparticle; a conductive metal nanowire; and a solvent including water and optionally an alcohol.
Claims22
An aqueous composition, comprising:
- a conductive metal nanoparticle comprising a C6 to C30 aromatic monothiol compound disposed on a surface of the conductive metal nanoparticle;
- a conductive metal nanowire;
- and
- a solvent comprising water and optionally an alcohol.
A method of producing a conductive thin film, comprising:
- obtaining an aqueous dispersion comprising a binder and a conductive metal nanowire having a diameter of less than or equal to about 50 nm;
- mixing the aqueous dispersion with a conductive metal nanoparticle comprising a C6 to C30 aromatic monothiol organic compound disposed on the surface of the conductive metal nanoparticle, wherein an average particle diameter of the conductive metal nanoparticle is less than or equal to about 5 nanometers to obtain an aqueous composition;
- coating the aqueous composition on a substrate, and optionally drying the same to obtain a film;
- and
- heat-treating the film at a temperature of greater than or equal to about 80° C. and less than or equal to about 190° C., to prepare a conductive thin film comprising at least two conductive metal nanowires welded by the conductive metal nanoparticle,
- wherein the aqueous composition comprises a solvent comprising water and optionally an alcohol.
A conductive thin film comprising at least two conductive metal nanowires welded by at least a portion of a conductive metal nanoparticle comprising a C6 to C30 aromatic monothiol compound disposed on a surface of the conductive metal nanoparticle, wherein the conductive metal nanoparticle has an average particle diameter of less than or equal to about 5 nanometers.
Dependencies are inferred from the claim text.