Beilstein J. Nanotechnol.2017,8, 956–967, doi:10.3762/bjnano.8.97
, that is also used in the theory of Andersonlocalization, defined as [51]
For spatially localized modes, χ is independent on the sample size L, whereas for extended modes, χ scales as L−2 [51]. In addition, for localized states, at a given point r and a given frequency ω, the electric field is
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Figure 1:
Schematic of the scattering geometry with the electromagnetic field vectors for linear p- and s- po...
Beilstein J. Nanotechnol.2016,7, 2013–2022, doi:10.3762/bjnano.7.192
Genova, Italy Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego, 30, I-16163 Genova, Italy Department of Physics, University of Genoa, via Dodecaneso, 33, I-16146 Genova, Italy 10.3762/bjnano.7.192 Abstract The localization of light known as Andersonlocalization is a common
electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The dielectric constant of the surrounding medium plays a crucial role in determining the aggregate geometry, which affects the Andersonlocalization of light in the aggregates and hence causes a red-shift in the plasmonic
resonance and in the photoluminescence emission. The geometry of the gold nanoparticle aggregates determine the strength of the Andersonlocalization, and hence, the light emission from the aggregates. The photoluminescence lifetime was found to be dependent on the AuNP aggregate geometry and the dielectric
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Figure 1:
XPS spectra for the AuNPs drop-cast on a) quartz and b) glass.