Synthesis and plasmonic properties of core-shell bimetallic silver-gold nanoprisms obtained through an organometallic route
- Crespo, J. 1
- Ibarra, Alfonso. 2
- Lõpez-De-Luzuriaga, J.M. 1
- Monge, M. 1
- Olmos, M.E. 1
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1
Universidad de La Rioja
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2
Universidad de Zaragoza
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ISSN: 1434-1948
Argitalpen urtea: 2014
Alea: 14
Orrialdeak: 2383-2388
Mota: Artikulua
Beste argitalpen batzuk: European Journal of Inorganic Chemistry
Laburpena
Ag-Au core-shell nanoprisms were obtained through the deposition of Au atoms over hexadecylamine-stabilized Ag nanoparticles through the mild decomposition of an organometallic AuI precursor. The effects of the amount of precursor [Au(C6F5)(tht)] (tht = tetrahydrothiophene) added and the reaction time on the size, shape, and composition of the core-shell Ag-Au nanostructures obtained have been studied by TEM, high-angle annular dark field/scanning transmission electron microscopy (HAADF-STEM), EDS, UV/Vis, and 19F NMR spectroscopic analysis. The anisotropic growth of the prismatic metallic shell and its composition has been controlled through the addition of different amounts of AuI precursor, thus leading to a delicate tuning of the plasmonic properties of these nanostructures. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.