US 7,591,872 B1
Method for producing silver nanoparticles and conductive ink
Byung-Ho Jun, Seoul (Korea, Republic of); Kwi-Jong Lee, Seoul (Korea, Republic of); Hye-Jin Cho, Suwon-si (Korea, Republic of); and Jae-Woo Joung, Suwon-si (Korea, Republic of)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon (Korea, Republic of)
Filed on Aug. 04, 2006, as Appl. No. 11/498,837.
Claims priority of application No. 10-2005-0072478 (KR), filed on Aug. 08, 2005.
Int. Cl. B22F 9/24 (2006.01)
U.S. Cl. 75—371  [977/896] 11 Claims
OG exemplary drawing
 
1. A method of producing metal nanoparticles, said method comprising:
mixing a metal precursor with a copper compound as a reducing agent to a hydrocarbon-based solvent, said metal precursor containing a metal having a higher standard oxidation/reduction potential than that of copper;
mixing an amine-based compound to the mixed solution of the metal precursor with a 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 copper compound and hydrocarbon-based solvent.