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Force Microscopy Study of Friction and Elastic Compliance of Phase-Separated Organic Thin Films

Overney, R. M. and Meyer, E. and Frommer, J. and Guntherodt, H. J. and Fujihira, M. and Takano, H. and Gotoh, Y.. (1994) Force Microscopy Study of Friction and Elastic Compliance of Phase-Separated Organic Thin Films. Langmuir, Vol. 10, H. 4. pp. 1281-1286.

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Official URL: http://edoc.unibas.ch/dok/A5839494

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Abstract

A correlation between friction and elasticity is drawn from measurements on organic thin films with a modified scanning force microscope (SFM). Local elastic compliance has been measured simultaneously with both topography and friction on the submicrometer scale on thin films of phase-separated mixtures of fluorocarbons and hydrocarbons. On the fluorocarbon domains, higher friction and lower Young`s modulus than on the hydrocarbon domains have been found. Variations in pH during sample preparation lead to differences in film formation, detected with the SFM as changes in topography, elasticity, and friction. On increasing pH, both the Young`s modulus and friction force are found to decrease. This unexpected result is discussed in terms of film formation and cohesive energy mechanisms.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Chemical Society
ISSN:0743-7463
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:14 Sep 2012 07:18
Deposited On:14 Sep 2012 06:43

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