期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 21, 期 18, 页码 6531-6540出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm04519e
关键词
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资金
- Italian Project PRIN Nanostrutture plasmoniche metallo-organico per sensoristica''
- Ente Cassa di Risparmio di Firenze [2009/1269]
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.
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