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Issue 11, 2017
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A closer look at the physical and optical properties of gold nanostars: an experimental and computational study

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Abstract

A combined experimental and computational study was carried out to design a semi-empirical method to determine the volume, surface area, and extinction coefficients of gold nanostars. The values obtained were confirmed by reconstructing the nanostar 3D topography through high-tilt TEM tomography and introducing the finite elements in COMSOL Multiphysics through which we have also calculated the morphology-dependent extinction coefficient. Doing so, we have, for the first time, modeled the heat losses of a real, experimentally synthesized nanostar, and found the plasmon resonances to be in excellent agreement with those obtained experimentally. We believe that our approach could substantially improve the applicability of this remarkable nanomaterial.

Graphical abstract: A closer look at the physical and optical properties of gold nanostars: an experimental and computational study

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The article was received on 22 Nov 2016, accepted on 20 Feb 2017 and first published on 22 Feb 2017


Article type: Communication
DOI: 10.1039/C6NR09091E
Citation: Nanoscale, 2017,9, 3766-3773
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    A closer look at the physical and optical properties of gold nanostars: an experimental and computational study

    T. V. Tsoulos, L. Han, J. Weir, H. L. Xin and L. Fabris, Nanoscale, 2017, 9, 3766
    DOI: 10.1039/C6NR09091E

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