Fabrication of Au/SiO2 Nanocomposite Films by Self-Assembly Multilayer Method

Abstract

Abstract: Gold colloid was prepared by chemical reduction of hydrogen tetrachloroaurate, polyelectrolyte/gold nanoparticle/silica nanoparticle composite films were fabricated via an electrostatic self-assembly multilayer method, and composite films of gold nanoparticle dispersed in silica matrix were formed by heat-treating the polyelectrolyte/gold nanoparticle/silica nanoparticle composite films to eliminate the polyelectrolyte. The obtained composite films were investigated with UV-vis, TEM, AFM and XRD. The results show that the self-assembly multilayer method is a promising process to produce composite films of gold nanoparticle-dispersed in organic and/or inorganic matrixes.

Key words: Self-assembly multilayer method, Gold nanoparticle, Silica, Composite film

Haihu YU, Honghui LI, Desheng JIANG, Xiaoyao CHEN, Enyu YANG. Fabrication of Au/SiO2 Nanocomposite Films by Self-Assembly Multilayer Method[J]. J Mater Sci Technol, 2004, 20(06): 674-677.

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