Charge distribution from SKPM images

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Charge distribution from SKPM images

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Publication Article, peer reviewed scientific
Title Charge distribution from SKPM images
Author Gonzalez, Juan Fransisco ; Somoza, AM ; Palacios-Lidon, E
Research Centre Biofilms - Research Center for Biointerfaces
Date 2017
English abstract
Inferring the surface charge distribution from experimental Kelvin probe microscopy measurements is usually a hard task. Although several approximations have been proposed in order to estimate the effect of these charges, the real inverse problem has not been addressed so far. In this paper, we propose a fast and intuitive method based on Fast Fourier Transform algorithms that allows the surface charge distribution to be obtained directly from the experimental Kelvin voltage measurements. With this method, quantitative physical information such as the total charge and charge position is accessible even in complex charge distributions such as highly insulating polymer surfaces. Moreover, one of the strongest points is that sub-tip resolution is achieved, and therefore the usually unknown charge size can be estimated.
DOI https://doi.org/10.1039/C7CP05401G (link to publisher's fulltext.)
Link http://pubs.rsc.org/en/content/articlelanding/2017... (external link to publication)
Publisher Royal Society of Chemistry
Host/Issue Physical Chemistry Chemical Physics;40
Volume 19
ISSN 1463-9076
Pages 27299-27304
Language eng (iso)
Subject Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/24215 Permalink to this page
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