Two-dimensional stick-slip on a soft elastic polymer: Pattern generation using atomic force microscopy

Jolanta A Watson; C L Brown; S Myhra; Gregory S Watson

doi:10.1088/0957-4484/17/10/023

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Two-dimensional stick-slip on a soft elastic polymer: Pattern generation using atomic force microscopy

Journal article

Open access

Peer reviewed

Two-dimensional stick-slip on a soft elastic polymer: Pattern generation using atomic force microscopy

Jolanta A Watson, C L Brown, S Myhra and Gregory S Watson

Nanotechnology, Vol.17(10), pp.2581-2589

2006

DOI: https://doi.org/10.1088/0957-4484/17/10/023

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Abstract

atomic force microscopy

It has been demonstrated that it is possible to create laterally differentiated frictional patterning and three-dimensional structures using an atomic force microscope (AFM) probe on the surface of a soft elastic polymer, poly(dimethylsiloxane) (PDMS). The resulting effect of contact mode imaging at low loading forces (<100 nN), observed in the lateral force mode, revealed a homogeneous pattern on the PDMS surface exhibiting higher friction. With higher loading forces (â‰ª nN) the effect is non-uniform, resulting in structures with depths on the nanometre scale. The topographic and frictional data revealed stick-slip responses in both the fast (orthogonal to the long axis of the lever) and slow (parallel to the long axis of the lever) directions of probe travel from scanning in a raster pattern. The stick-slip events are manifested in the form of a series of shallow channels spaced evenly apart on the polymer surface. Detailed friction loop analysis acquired during the manipulation process showed that the lateral force changed according to the strength of trapping of the tip with the polymer surface exhibiting significant in-plane deformation due to lateral forces being imposed. An incremental increase in the initial loading force resulted in an increase in in-plane displacement and a greater spacing between the stick lines/channels in the slow-scan direction. A decrease in channel length in the fast-scan direction is also observed as a result of an increase in static friction with normal force, resulting in greater surface deformation and shorter track length for sliding friction. © 2006 IOP Publishing Ltd.

Details

Title: Two-dimensional stick-slip on a soft elastic polymer: Pattern generation using atomic force microscopy
Authors: Jolanta A Watson (Author) - Griffith University
C L Brown (Author) - Griffith University
S Myhra (Author) - Griffith University
Gregory S Watson (Author) - Griffith University
Publication details: Nanotechnology, Vol.17(10), pp.2581-2589
Publisher: Institute of Physics Publishing Ltd.
Date published: 2006
DOI: 10.1088/0957-4484/17/10/023
ISSN: 0957-4484
Copyright note: Copyright © 2006 Institute of Physics Publishing Ltd. This is the Author's Accepted version of Watson, Jolanta A; Brown, C L; Myhra, S; Watson, Gregory S (2006) Two-dimensional stick-slip on a soft elastic polymer: Pattern generation using atomic force microscopy. Nanotechnology 17:10, pp.2581-2589 . The final version is available at: http://dx.doi.org/10.1088/0957-4484/17/10/023
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99449579802621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Materials Science, Multidisciplinary; Nanoscience & Nanotechnology; Physics, Applied