TITLE

Wettability study using transmitted electrons in environmental scanning electron microscope

AUTHOR(S)
Barkay, Z.
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/3/2010, Vol. 96 Issue 18, p183109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A method for quantitative wettability study at nanoscale is presented. It is based on measuring transmitted electrons through nanodroplets using wet scanning transmission electron microscope (wet-STEM) detector in environmental scanning electron microscope. The quantitative information of the nanodroplet shape and contact angle is obtained by fitting Monte Carlo simulation results for transmitted electrons through spherical cap geometry with the experimental wet-STEM results. The characterization is demonstrated for particles and for initial stages of water droplet condensation over a nonhomogeneous holey carbon grid. The method is suggested for application in thin polymer and biological films.
ACCESSION #
50309179

 

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