Method for producing silver nanoparticles and conductive ink

a silver nanoparticle and conductive ink technology, applied in the field of producing metal nanoparticles, can solve the problems of limited mass production efficiency, low yield rate of metal nanoparticles by this existing method, and limitation of metal nanoparticles' yield rate, etc., to achieve high yield rate, simple process, and uniform size
US20090223410A1Inactive Publication Date: 2009-09-10SAMSUNG ELECTRO MECHANICS CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
SAMSUNG ELECTRO MECHANICS CO LTD
Publication Date
2009-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method of producing metal nanoparticles in a high yield rate and uniform shape and size, which is thus suitable for mass production. In addition, metal nanoparticles are provided that have superior dispersion stability when re-dispersed in various organic solvents, which thus suitable for use as a conductive ink having high conductivity. The method of producing nanoparticles includes mixing a metal precursor with a copper compound to a hydrocarbon based solvent, mixing an amine-based compound to the mixed solution of the metal precursor with copper compound and hydrocarbon based solvent, and mixing a compound including one or more atoms having at least one lone pair, selected from a group consisting of nitrogen, oxygen, sulfur and phosphorous to the mixed solution of the amine-based compound, metal precursor with a copper compound and hydrocarbon based solvent.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of Korean Patent Application No. 10-2005-0072478 filed on Aug. 8, 2005, with the Korea Intellectual Property Office, the contents of which are incorporated here by reference in their entirety.BACKGROUND

[0002] 1. Technical Field

[0003] The present invention relates to a method of producing metal nanoparticles, in particular, to a method of producing metal nanoparticles with the solution method.

[0004] 2. Description of the Related Art

[0005] Major ways to produce metal nanoparticles are the vapor-phase method and the solution (colloid) method. Since the vapor-phase method which uses plasma or gas evaporation requires highly expensive equipments, the solution method which is easy for the production is generally used.

[0006] A method of producing metal nanoparticles by the solution method up to now is to dissociate a metal compound in a hydrophilic solvent and then apply a reducing agent or a surfactant to produce ...

Claims

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