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Dynamic Depolarized Light Scattering of Small Round Plasmonic Nanoparticles: When Imperfection is Only Perfect

Balog, Sandor; Rodriguez-Lorenzo, Laura; Monnier, Christophe A.; Michen, Benjamin; Obiols-Rabasa, Marc LU ; Casal-Dujat, Lucia LU ; Rothen-Rutishauser, Barbara; Petri-Fink, Alke and Schurtenberger, Peter LU (2014) In Journal of Physical Chemistry C 118(31). p.17968-17974
Abstract
Although small round gold nanoparticles (Au NPs) possess only a small degree of shape anisotropy, they support localized surface plasmon resonances and exhibit intrinsic optical anisotropy. These inherent features promote depolarized light scattering, whose temporal fluctuations carry information about rotational Brownian dynamics, and thus can be used to describe the size distribution of round Au NPs. We demonstrate that this allows for a much more accurate determination of particle size and polydispersity through depolarized dynamic light scattering when compared to standard particle sizing with light scattering.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
118
issue
31
pages
17968 - 17974
publisher
The American Chemical Society
external identifiers
  • wos:000340222300087
  • scopus:84905845433
ISSN
1932-7447
DOI
10.1021/jp504264f
language
English
LU publication?
yes
id
dfb61a8d-9ba4-494f-abd5-4584265e0a47 (old id 4659215)
date added to LUP
2014-09-24 14:31:38
date last changed
2017-11-19 03:10:34
@article{dfb61a8d-9ba4-494f-abd5-4584265e0a47,
  abstract     = {Although small round gold nanoparticles (Au NPs) possess only a small degree of shape anisotropy, they support localized surface plasmon resonances and exhibit intrinsic optical anisotropy. These inherent features promote depolarized light scattering, whose temporal fluctuations carry information about rotational Brownian dynamics, and thus can be used to describe the size distribution of round Au NPs. We demonstrate that this allows for a much more accurate determination of particle size and polydispersity through depolarized dynamic light scattering when compared to standard particle sizing with light scattering.},
  author       = {Balog, Sandor and Rodriguez-Lorenzo, Laura and Monnier, Christophe A. and Michen, Benjamin and Obiols-Rabasa, Marc and Casal-Dujat, Lucia and Rothen-Rutishauser, Barbara and Petri-Fink, Alke and Schurtenberger, Peter},
  issn         = {1932-7447},
  language     = {eng},
  number       = {31},
  pages        = {17968--17974},
  publisher    = {The American Chemical Society},
  series       = {Journal of Physical Chemistry C},
  title        = {Dynamic Depolarized Light Scattering of Small Round Plasmonic Nanoparticles: When Imperfection is Only Perfect},
  url          = {http://dx.doi.org/10.1021/jp504264f},
  volume       = {118},
  year         = {2014},
}