Decorating gold nano-spheres, -rods and -cubes with gold nanodots
- 化学化工－会议论文 
We have developed a simple solution method to decorate gold nanodots (7-10 nm) on gold nano-spheres, -cubes and -rods, in a solution composed of cetyltrimethyl-ammonium bromide (CTAB), gold salt, thioctic acid (TOA) and ascorbic acid (AA). When gold nanoparticles with about 1.5 nm diameters grew in the decorating solution, cauliflower-like nanoparticles were obtained. Several experimental parameters affecting the morphology of gold nanoparticles were investigated. Nanodots were also decorated on gold nanocubes or nanorods. The optical properties of these gold nanoparticles are drastically influenced by nanodots decorated. The growth mechanism of nanodots on gold nanoparticles is discussed. ? 2011 IEEE.