New preparation method of gold nanoparticles on SiO2

Article Abstract:

The mechanisms of [Au(en)(sub 2)](super 3+) adsorption were calculated using the density functional theory calculations, where neutral and negatively charged silica surfaces were simulated by neutral cluster Si4O10H4 and negatively charged cluster Si4O10H3 respectively. The calculations results were consistent with the suggestion that the deposition of gold takes place according to cationic adsorption mechanism.

Silicon Dioxide, Usage, Density functionals, Density functional theory, Atomic properties

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Near-field and far-field scattering by bimetallic nanoshell systems

Article Abstract:

The near-field and far-field scattering response of bimetallic Ag/Au core-shell and alloy nanoparticles was studied theoretically. The comparison between the scattering spectra of core-shell and alloy particles showed that for particles with an Au/Ag volume ratio greater than 2, the structural difference does not imply any significant difference in the optical response.

Analysis, Optical properties, Silver compounds, Scattering (Physics), Properties, Structure

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