Synthesis and plasmonic properties of monodisperse Au–Ag alloy nanoparticles of different compositions from a single-source organometallic precursor - INSA Toulouse - Institut National des Sciences Appliquées de Toulouse Access content directly
Journal Articles Journal of Materials Chemistry C Year : 2014

Synthesis and plasmonic properties of monodisperse Au–Ag alloy nanoparticles of different compositions from a single-source organometallic precursor

Abstract

Monodisperse Au–Ag alloy nanoparticles of different compositions are prepared through the mild decomposition of the bimetallic precursor [Au2Ag2(C6F5)4(OEt2)2]n in an organic solvent using hexadecylamine (HDA) as a stabilizing ligand. The effects of different reaction parameters on the size and composition of the nanoparticles, such as the metal : HDA ratio, the use of H2 reducing gas or the solvent (toluene, THF or mesitylene), have been studied through TEM, HRTEM, EDS, UV/Vis and 19F NMR spectroscopy. The localized surface plasmon resonance (LSPR) displayed by the spherical Au–Ag nanoparticles can be tuned as a function of the metal composition.
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Dates and versions

hal-02023213 , version 1 (18-02-2019)

Identifiers

  • HAL Id : hal-02023213 , version 1

Cite

Julian Crespo, Andrea Falqui, Jorge García-Barrasa, José López-De-Luzuriaga, Miguel Monge, et al.. Synthesis and plasmonic properties of monodisperse Au–Ag alloy nanoparticles of different compositions from a single-source organometallic precursor. Journal of Materials Chemistry C, 2014, 2 (16), pp.2975. ⟨hal-02023213⟩
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