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Issue 18, 2011
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Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum

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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.

Graphical abstract: Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum

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Supplementary files

Article information


Submitted
24 Dec 2010
Accepted
03 Mar 2011
First published
28 Mar 2011

J. Mater. Chem., 2011,21, 6531-6540
Article type
Paper

Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum

S. Trigari, A. Rindi, G. Margheri, S. Sottini, G. Dellepiane and E. Giorgetti, J. Mater. Chem., 2011, 21, 6531
DOI: 10.1039/C0JM04519E

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