Abstract
Various silver nanostructures with hollow interiors, including nanoscaled cubic orquasi-cubic boxes, tubes, triangular rings, trapeziform rings and hybrid structurescomposed of tubes and cubic boxes, were synthesized via an extremely simple route. Themethod involved the modification of the solid silver nanocrystals by dithiol, andsubsequent dissolving of the interior metal and assembly of the outer surface.In the whole process, only one simple step of pretreatment was needed beforethe transformation from Ag solid nanostructures to their corresponding hollownanostructures. According to the morphological, spectral and structural changesin the evolution from silver solid nanostructures to their corresponding hollownanostructures, a layer-by-layer assembly mechanism was proposed. The method isbelieved to open up a simple and versatile route to the fabrication of metallic hollownanostructures with various morphologies according to the starting templates.
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