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Alignment and Deposition of Single Wall Carbon Nanotubes under the Influence of an Electric Field

Published online by Cambridge University Press:  11 February 2011

Paul Jaynes
Affiliation:
Foster-Miller, Inc., 350 Second Avenue Waltham, MA 02451
Thomas Tiano
Affiliation:
Foster-Miller, Inc., 350 Second Avenue Waltham, MA 02451
Margaret Roylance
Affiliation:
Foster-Miller, Inc., 350 Second Avenue Waltham, MA 02451
Charles Carey
Affiliation:
Foster-Miller, Inc., 350 Second Avenue Waltham, MA 02451
Kenneth McElrath
Affiliation:
Carbon Nanotechnologies, Inc., 16200 Park Row, Houston, TX 77084
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Abstract

Single wall carbon nanotubes have aroused a great deal of interest because of their unique combination of electrical, physical and mechanical properties. However, the widespread use of SWNTs in composites and electronic devices is limited because of the difficulty of dispersing and processing these materials. This paper describes a method for depositing and aligning SWNTs from a dispersed solution onto a substrate under the influence of an electric field. Results indicate that SWNTs can be aligned in bulk in the direction of electric field lines, and that individual SWNT ropes may be deposited between two electrodes. The extent and type of deposition depends upon the electrode geometry and processing time. Electrical alignment of SWNTs is an enabling technology allowing manipulation of nanomaterials using standard processing. It could eventually lead to a wide range of products, such as nanocomposites with aligned fillers and nanoelectronic devices.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

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References

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