Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 115, Issue 38, Pages 18479-18485Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp2059613
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We report a multistep Ostwald ripening approach through which the interior multilayer structures of a Cu2O shell-in-shell nanopartide can be controllably tailored. Using this method, we can fine-control several important geometrical parameters of Cu2O multilayer nanoshells, such as the number of layers, the thickness of each shell, and the intershell spacing, to systematically fine-tune the synergistic optical properties of the particles over a broad spectral range in the visible and near-infrared regions. We have performed Mie scattering theory calculations to interpret the origin of the complex, multipeaked extinction spectral line shapes and geometry-dependent optical tunability of the Cu2O multilayer nanoshells.
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