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Issue 69, 2012
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Nanoscale mapping of plasmon resonances of functional multibranched gold nanoparticles

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Abstract

The optical response of multibranched gold nanoparticles is studied by means of electron energy-loss spectroscopy (EELS) in aberration corrected STEM mode. In every case the plasmon response is constant and variations in the maxima positions were found to be dependent on the branches aspect ratio. The good spatial resolution combined with the high energy resolution (0.18 eV) of the monochromated electron beam allows mapping the different plasmonic modes along the entire nanoparticles ranging from 0.7 eV up to 2.25 eV.

Graphical abstract: Nanoscale mapping of plasmon resonances of functional multibranched gold nanoparticles

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Publication details

The article was received on 11 Jun 2012, accepted on 11 Jul 2012 and first published on 11 Jul 2012


Article type: Communication
DOI: 10.1039/C2CC34177H
Chem. Commun., 2012,48, 8667-8669

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    Nanoscale mapping of plasmon resonances of functional multibranched gold nanoparticles

    A. Mayoral, C. Magen and M. Jose-Yacaman, Chem. Commun., 2012, 48, 8667
    DOI: 10.1039/C2CC34177H

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