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Adsorption of n-butyl-substituted tetrathiafulvalene dodecanethiol on gold
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Sensor Science and Molecular Physics .
Linköping University, Faculty of Health Sciences. Linköping University, Department of Clinical and Experimental Medicine, Orthopaedics and Sports Medicine .
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2005 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, Vol. 287, no 2, 388-393 p.Article in journal (Refereed) Published
Abstract [en]

Tetrathiafulvalene (TTF) derivative substituted with two butyl- and two dodecylthiol chains is adsorbed on polycrystalline gold. The TTF-derived thiol adsorbates were characterized by ellipsometry, contact angle goniometry, infrared and X-ray photoelectron spectroscopy and cyclic voltammetry. The molecule is strongly anchored on the gold surface through the sulfur terminating the alkylthiol chains. On the average, the TTF moiety is oriented extended away from the gold surface. The topmost layer of the film containing the dibutyl chains is disordered with gauche defects. The molecule was organized with majority of the alkylthiol chains bound to the gold surface. There are indications of pinholes in the monolayer due to steric hindrance of the bulky TTF rings. The molecular systems consisting of an electroactive π-system such as TTF, are promising for thin-film field effect transistor application. © 2005 Elsevier Inc. All rights reserved.

Place, publisher, year, edition, pages
2005. Vol. 287, no 2, 388-393 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-44576DOI: 10.1016/j.jcis.2005.02.046Local ID: 77120OAI: diva2:265438
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-12

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Petoral, Rodrigo JrWermelin, KarinUvdal, Kajsa
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