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Dayang Wang, Jensen Li, C. T. Chan, Verónica Salgueiriño-Maceira, Luis M. Liz-Marzán, Sergei Romanov and Frank Caruso Optical Properties of Nanoparticle-Based Metallodielectric Inverse Opals Small 1

Version of Record online: 15 OCT 2004 | DOI: 10.1002/smll.200400022

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The optical properties of metallodielectric inverse opals (see picture) prepared by co-crystallizing silica-coated gold nanoparticles (inset) and polymer spheres, followed by removal of the crystal template, can be engineered by varying the nanoparticle core size or shell thickness, and/or the nanoparticle volume-filling ratio of the composite. Such nanoparticles offer a route to photonic materials with unique bandgap properties.

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