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Journal of Nanoparticle Research

Erschienen in:

01.10.2015 | Research Paper

Resonant depolarized dynamic light scattering of silver nanoplatelets

verfasst von: M. Zimbone, E. Messina, G. Compagnini, M. E. Fragalà, L. Calcagno

Erschienen in: Journal of Nanoparticle Research | Ausgabe 10/2015

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Abstract

Polarized and depolarized dynamic light scattering (DDLS) methodology was carried out on silver nanoplatelets showing strong plasmon-enhanced scattering. The hydrodynamic properties of the nanoparticles were determined by measuring the translation diffusion coefficient for “out resonant” condition and the rotational diffusion coefficient for “in resonant” condition. The results have been interpreted by applying an oblate ellipsoidal model, which allows a direct evaluation of nanoplatelets’ size and shape in agreement with scanning electron microscopy. The characterised nanoplatelets reveal a transversal size of 20 nm and a longitudinal length in the range 65–92 nm. Our investigation shows that DDLS in resonant condition is a simple and powerful technique to determine the size and shape of plasmonic nanoparticles and it can be successfully applied to characterise the dynamics of metallic nanoplatelets.

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Titel: Resonant depolarized dynamic light scattering of silver nanoplatelets
verfasst von: M. Zimbone
E. Messina
G. Compagnini
M. E. Fragalà
L. Calcagno
Publikationsdatum: 01.10.2015
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 10/2015
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-015-3188-x

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