Patent ID: 7976609
Filing Date: 2011-07-12
Classification: B22F,B82Y,C30B,Y10S

Abstract:
1. A method for manufacturing metal nanorods, the method comprising: a step of chemically reducing a metallic salt solution by addition of a reducing agent; a step of radiating ultraviolet light into the chemically reduced solution for a period of 5 to 15 minutes so as to generate seed metal nano-particles in the shape of a rod; a step of fractionating the ultraviolet light-radiated metallic salt solution and mixing the fractionated metallic salt solution with a non-radiated metallic salt solution containing the reducing agent; and a step of growing metal nanorods from the seed metal nano-particles, by leaving the mixed seed solution containing the reducing agent stationary for a period of 30 to 60 minutes in a place where the ultraviolet light is turned off, wherein the metal nanorods are selected from either gold nanorods or silver nanorods: said metallic salt solution is selected from either an auric salt solution or a silver salt solution; and the seed metal nano-particles are either of seed gold nano-particles or seed silver nano-particles.