RESEARCH FOR THE FORMING PROCESS OF AuR@Ag CORE-SHELL STRUCTURE NANORODS USING ANISOTROPIC DEVELOPMENT OF Ag SHELL

Abstract

Core-shell structure nanorods AuR@Ag with the core of gold nanorods and Ag shell were synthesized using the seed method in CTAC medium. The anisotropic growth of the Ag shell was controlled by investigating the dependence of the shell growth on the concentration of Ag⁺ ions and the temperature of the reduction reaction. The optical properties of the particles were investigated through UV-VIS absorption spectroscopy and the morphology and size of the particles were observed through TEM and SEM images. The results show that the core-shell structure nanorods AuR@Ag have been synthesized with high efficiency, the generated particles are relatively uniform in shape and size. The higher the concentration of Ag⁺ ions, the thicker the crust, and the most suitable temperature for controlled crust development is 65^oC.