The Effect of Nanoseed Concentration on the Aspect Ratio of Gold Nanorod

This paper reports the synthesis of gold nanorod with controlled aspect ratio prepared by varying the concentration of nanoseed addition into the growth solution via seed mediated growth method. In typical process, the gold nanorod with aspect ratio from ca. 1.7 to 3.1 can be successfully obtained. The nanorod seems to be perfect rod morphology instead of bone-like or tear drop structure. Owing to the simplicity in preparing the gold nanorod, the present approach could be used as potential alternative for producing gold nanorod with special properties for used in the currently existing application.