Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum
| Autor: | Alessio Rindi, Silvana Trigari, Giancarlo Margheri, Stefano Sottini, Emilia Giorgetti, Giovanna Dellepiane |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Morphology (linguistics) business.industry Branch length General Chemistry AU NANOPARTICLES PLASMON RESONANCES Core (optical fiber) Wavelength Optics Extinction spectrum LASER IRRADIATION NANOCRYSTALS Extinction (optical mineralogy) Materials Chemistry ENHANCED RAMAN-SCATTERING business |
| Zdroj: | Journal of materials chemistry 21 (2011): 6531–6540. doi:10.1039/c0jm04519e info:cnr-pdr/source/autori:Silvana Trigari (1); Alessio Rindi (1,2); Giancarlo Margheri (1); Stefano Sottini (1); Giovanna Dellepiane (2,3); Emilia Giorgetti (1,3)/titolo:Synthesis and modelling of gold nanostars with tunable morphology and extinction spectrum/doi:10.1039%2Fc0jm04519e/rivista:Journal of materials chemistry (Print)/anno:2011/pagina_da:6531/pagina_a:6540/intervallo_pagine:6531–6540/volume:21 |
| DOI: | 10.1039/c0jm04519e |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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