Preparation of the PVA film with gold fine particles by a counter diffusion method: Effect of diffusion on the distribution of gold fine particles in the film

摘要

The fabrication of ordered superlattices from nanocrystals is one of the subjects that recently occupied considerable attention. If nanocrystal is formed in the media with the order, we can easily obtain the ordered lattices of nanocrystals. We have studied on the formation of colloidal gold in the presence of an acetylenic glycol nonionic surfactant, Surfynol 465. This method had marked advantages in the simplicity (formed by mixing two aqueous solutions) and the temperature (in the wide range from 5℃ to 95℃). In this work, we formed a colloidal gold in a polymer film matrix to have a polymer film with gold particles. As a polymer polyvinyl alcohol (PVA) was used.