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Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum (Articolo in rivista)

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Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum (Articolo in rivista) (literal)

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Alternative label

Trigari, S. (1); Rindi, A. (1,2); Margheri, G. (1); Sottini, S. (1); Dellepiane, G. (2,3); Giorgetti, E. (1,3) (2011)
Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum
in Journal of materials chemistry (Print); ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE,, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND (Regno Unito)
(literal)

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Trigari, S. (1); Rindi, A. (1,2); Margheri, G. (1); Sottini, S. (1); Dellepiane, G. (2,3); Giorgetti, E. (1,3) (literal)

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1. CNR, Natl Res Council Italy, Ist Sistemi Complessi, I-50019 Sesto Fiorentino, Italy 2. Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy 3. Consorzio Interuniv Nazl Sci & Tecnol Mat, INSTM, I-50121 Florence, Italy (literal)

Titolo

Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum (literal)

Abstract

We present a simple seed-less synthesis procedure to fabricate stable gold nanostars (AuNSs) with tunable extinction properties from the visible up to 1800 nm, depending on the average values of core size and branch length. The experimental results are compared with data from Finite Elements Method computations by using an approximated model of the fabricated branched systems. The theoretical computations highlight the existence of hot spots located on the tips of the nanostars even up to 1800 nm wavelength, which opens the way to the improvement of IR diagnostics or chemical sensing. (literal)

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