Synthesis and plasmonic properties of core-shell bimetallic silver-gold nanoprisms obtained through an organometallic route

  1. Crespo, J. 1
  2. Ibarra, Alfonso. 2
  3. Lõpez-De-Luzuriaga, J.M. 1
  4. Monge, M. 1
  5. Olmos, M.E. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

Revista:
European Journal of Inorganic Chemistry

ISSN: 1434-1948

Año de publicación: 2014

Volumen: 14

Páginas: 2383-2388

Tipo: Artículo

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DOI: 10.1002/EJIC.201400023 SCOPUS: 2-s2.0-84900497325 WoS: WOS:000335607700009 GOOGLE SCHOLAR

Otras publicaciones en: European Journal of Inorganic Chemistry

Resumen

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.