Precious metal coreshell spindles

Publisher:
American Chemical Society
Publication Type:
Journal article
Citation:
Xu Xiaoda and Cortie Michael 2007, 'Precious metal core-shell spindles', Amer Chemical Soc, vol. 111, no. 49, pp. 18135-18142.
Issue Date:
2007
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A simplified method to produce spindle-shaped particles with a hematite core and a silica shell is described. The silica shell can, in turn, serve as the substrate for an outer coating of Ag or Au nanoparticles. The resulting multilayer core-shell particles display a flexible optical extinction spectrum, due primarily to the sensitivity of their plasmon resonance to the morphology of the precious metal outer coating.
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