Influence of humidity on friction measurements of supported MoS2 single layers

Schumacher, A. and Kruse, N. and Prins, R. and Meyer, E. and Luthi, R. and Howald, L. and Guntherodt, H. J. and Scandella, L.. (1996) Influence of humidity on friction measurements of supported MoS2 single layers. Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement, and phenomena, Vol. 14, H. 2. pp. 1264-1267.

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Official URL: http://edoc.unibas.ch/dok/A5839476

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We have studied friction of MoS2 single layers on mica and Al2O3 in the range of 5%-90% relative humidity. Friction coefficients have been determined simultaneously for the MoS2 platelets as well as for the support. Only a slight influence on the humidity was found for the friction coefficient of MoS2 and Al2O3, On the other hand, water adsorption on mica caused a strong increase of the friction coefficient above 40% relative humidity. The change of the friction coefficient was so strong that the contrast of the friction images inverted. At very high humidities (above 60%), the friction coefficient of mica reverted to its initial value, probably because water acted as a boundary lubricant. (C) 1996 American Vacuum Society.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Vacuum Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 Sep 2012 07:18
Deposited On:14 Sep 2012 06:43

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