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Proceedings Paper

Study of the alignment of multiwalled carbon nanotubes using dielectrophoresis
Author(s): Chen Zhang; M. Breedon; W. Wlodarski; K. Kalantar-zadeh
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Paper Abstract

Presented is the dielectrophoresis of multiwalled carbon nanotubes on piezoelectric substrates patterned with gold inter digitated electrodes. An alternating current oscillating at frequencies of 1 kHz and 150 kHz at a peak-to-peak (p-p) voltage of 1V to 10V was applied to the electrodes, aligning carbon nanotubes suspended in droplets of isopropyl alcohol (IPA). The carbon nanotubes were suspended in a dielectric medium (IPA) at a concentration of approx 0.1 mg/mL and stabilized with sodium citrate (0.02 mg/ml). Sonicated for two hours and spun down in a centrifuge for 30 minutes at 4500 rpm. The carbon nanotubes used in the DEP experimentation were multiwalled carbon nanotubes with aspect ratios of approx 100:1.

Paper Details

Date Published: 5 January 2008
PDF: 10 pages
Proc. SPIE 6802, Complex Systems II, 680213 (5 January 2008); doi: 10.1117/12.759291
Show Author Affiliations
Chen Zhang, RMIT Univ. (Australia)
M. Breedon, RMIT Univ. (Australia)
W. Wlodarski, RMIT Univ. (Australia)
K. Kalantar-zadeh, RMIT Univ. (Australia)

Published in SPIE Proceedings Vol. 6802:
Complex Systems II
Derek Abbott; Tomaso Aste; Murray Batchelor; Robert Dewar; Tiziana Di Matteo; Tony Guttmann, Editor(s)

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