Tribology studies of organic thin films by scanning force microscopy

G. Bar, S. Rubin, A. N. Parikh, B. I. Swanson, T. A. Zawodzinski

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Using the micro-contact printing method we prepared patterned self-assembled monolayers (SAMs) consisting of methyl-terminated alkanethiols of different chain lengths. The samples were characterized using lateral force microscopy (LFM) and the force modulation technique (FMT). In general, higher friction is observed over the short chain regions than over the long chain regions when a low or moderate load is applied to the scanning force microscopy (SFM) tip. For such cases the high friction (short chain) regions are also 'softer' as measured by FMT. At high loads, a reversal of the image contrast is observed and the short chain regions show a lower friction than the long chain regions. This image contrast is reversible upon reduction of the applied load.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsW.W. Gerberich, H. Gao, J.E. Sundgren, S.P. Baker
StatePublished - 1996
Externally publishedYes
EventProceedings of the 1996 MRS Spring Meeting - San Francisco, CA, USA
Duration: Apr 8 1996Apr 12 1996


OtherProceedings of the 1996 MRS Spring Meeting
CitySan Francisco, CA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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