| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5368161 | Applied Surface Science | 2007 | 5 Pages |
Abstract
We have successfully synthesized Au/Ag colloidal nano-alloys with a wide range of compositions by laser ablation of single metal targets in water and a re-irradiation of mixed colloidal suspensions. The optical extinction spectra have been obtained in the plasmon resonance region and their analysis by using the Mie-Gans approach has lead to a quantitative estimation of a number of different structural features for the sols. Some of the obtained results are supported by X-ray photoelectron data and transmission electron microscopy, while others are used to investigate the kinetics of formation of the nano-alloys under laser irradiation.
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Authors
Giuseppe Compagnini, Elena Messina, Orazio Puglisi, Valeria Nicolosi,