Nonspherical nanoparticles characterization by partially depolarized dynamic light scattering

Alexander D. Levin; Ekaterina A. Shmytkova

doi:10.1117/12.2184867

21 June 2015 Nonspherical nanoparticles characterization by partially depolarized dynamic light scattering

Alexander D. Levin, Ekaterina A. Shmytkova

Proceedings Volume 9526, Modeling Aspects in Optical Metrology V; 95260P (2015) https://doi.org/10.1117/12.2184867
Event: SPIE Optical Metrology, 2015, Munich, Germany

Abstract

The realization of improved depolarized dynamic light scattering method is presented. This technique supports measurement of non-spherical nanoparticals dimensions in liquids. The relations between translational and rotational diffusion coefficients and autocorrelation function of scattered light with polarized and depolarized components in various proportions are derived. Thus measurement of very weak cross-polarized component can be avoided. This improvement permits to reduce measurement time, to improve signal to noise ratio and results precision. The technique was applied for sizing of gold nanorods and multiwalled carbon nanotubes in liquids.

Citation Download Citation

Alexander D. Levin and Ekaterina A. Shmytkova "Nonspherical nanoparticles characterization by partially depolarized dynamic light scattering", Proc. SPIE 9526, Modeling Aspects in Optical Metrology V, 95260P (21 June 2015); https://doi.org/10.1117/12.2184867

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