Bimetallic Ag-Au nanoparticles are synthesized by sequential deposition of Au and Ag on amorphous silica by Radio Frequency (RF)-sputtering under mild conditions. Specimens are thoroughly characterized by a multi-technique approach, aimed at investigating the system properties as a function of the Ag/Au content, as well as the evolution induced by ex-situ annealing under inert (N 2) or reducing (4% H 2/N 2) atmospheres. The obtained results demonstrate the possibility to obtain Ag-Au alloyed nanoparticles with controllable size, shape, structure, and dispersion under mild conditions, so that the optical properties can be finely tuned as a function of the synthesis and thermal treatment conditions.
Structure and optical properties of silica-supported Ag-Au nanoparticles / D., Barreca; A., Gasparotto; C., Maragno; E., Tondello; Gialanella, Stefano. - In: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY. - ISSN 1533-4880. - STAMPA. - 7:7(2007), pp. 2480-2486. [10.1166/jnn.2007.442]
Titolo: | Structure and optical properties of silica-supported Ag-Au nanoparticles | |
Autori: | D., Barreca; A., Gasparotto; C., Maragno; E., Tondello; Gialanella, Stefano | |
Autori Unitn: | ||
Titolo del periodico: | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | |
Anno di pubblicazione: | 2007 | |
Numero e parte del fascicolo: | 7 | |
Codice identificativo Scopus: | 2-s2.0-34548179942 | |
Codice identificativo WOS: | WOS:000246347700037 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1166/jnn.2007.442 | |
Handle: | http://hdl.handle.net/11572/4952 | |
Citazione: | Structure and optical properties of silica-supported Ag-Au nanoparticles / D., Barreca; A., Gasparotto; C., Maragno; E., Tondello; Gialanella, Stefano. - In: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY. - ISSN 1533-4880. - STAMPA. - 7:7(2007), pp. 2480-2486. [10.1166/jnn.2007.442] | |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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