Issue |
EPJ Web of Conferences
Volume 5, 2010
API'09 - First NanoCharM Workshop on Advanced Polarimetric Instrumentation
|
|
---|---|---|
Article Number | 02001 | |
Number of page(s) | 5 | |
Section | Scatterometry and metrology of small particles | |
DOI | https://doi.org/10.1051/epjconf/20100502001 | |
Published online | 02 June 2010 |
https://doi.org/10.1051/epjconf/20100502001
Ellipsometric light scattering to probe the interface of colloids - current applications and future challenges
1 ,
Max-Planck-Institut fur Eisenforschung GmbH,
Max-Planck-Str. 1,
40237
Dusseldorf,
Germany
2
University Fribourg, Adolphe Merkle Institute,
Chemin du Musee 3,
Perolles, CH-1700
Fribourg,
Switzerland
a e-mail: a.erbe@mpie.de, aerbe@arcor.de
In recent years, ellipsometric light scattering (ELS) has been developed into a technique which can be used to characterise the interface between spherical colloidal particles and their surrounding medium. Here, we give an overview over previous successful applications of the technique, and its current limits. The successful applications include the characterisation of temperature-dependent swelling of a thermo-sensitive polymer coating on a latex particle, the measurement of birefringence and molecular orientation in a vescile shell, and the characterisation of the ion distribution around electrostatically stabilised latex particles. As a result of the characterisation of the ion distribution, disagreement with the Poisson-Boltzmann description has been reported before. Here, a few more experimental results on latex particles in the presence of CsBr are discussed.
© Owned by the authors, published by EDP Sciences, 2010
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