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Title: Wetting of a self-assembled 1,4-benzenedimethanethiol monolayer on gold and silver: An adhesion force spectroscopy study
Authors: Vandamme, Nele ×
Schouteden, Koen
Snauwaert, Johan
Lievens, Peter
Van Haesendonck, Christian #
Issue Date: Jul-2006
Publisher: Elsevier science bv
Series Title: Surface Science vol:600 issue:14 pages:2894-2899
Abstract: Using atomic force microscopy we investigated how local capillary phenomena are affected by the deposition of a self-assembled 1,4-benzenedimethanethiol (BDMT) layer on epitaxially grown Au(1 1 1) and Ag(1 1 1) films. Force-distance curves monitored at varying relative humidity show clear differences in the adhesion forces on the different samples, which can be explained in terms of a change in the wetting behavior due to the presence of the molecules. Moreover, we found that not only the chemical structure of the molecules but also their orientation strongly influences the strength of the capillary forces. A detailed analysis of the measurements shows that condensation of water vapor on Au(1 1 1) films is drastically enhanced due to the vertically aligned BDMT molecules, while on Ag(1 1 1) water condensation is reduced due to a parallel molecule orientation. (c) 2006 Elsevier B.V. All rights reserved.
URI: 
ISSN: 0039-6028
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Chemistry - miscellaneous
× corresponding author
# (joint) last author

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