Abstract

Anisotropic Au@SiO(2) core-shell nanostructures have been fabricated from CTABr-stabilized Au nanoparticles with a facile synthesis involving a single growth solution. This procedure circumvents tedious surface modification steps and allows for the SiO(2) shell thickness to be tuned from 5 to 20 nm by modulating the nanoparticle number density and concentration of silica precursor.

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