Study of the alignment of multiwalled carbon nanotubes using dielectrophoresis

Chen Zhang; M. Breedon; W. Wlodarski; K. Kalantar-zadeh

doi:10.1117/12.759291

Translator Disclaimer

5 January 2008 Study of the alignment of multiwalled carbon nanotubes using dielectrophoresis

Chen Zhang, M. Breedon, W. Wlodarski, K. Kalantar-zadeh

Author Affiliations +

Proceedings Volume 6802, Complex Systems II; 680213 (2008) https://doi.org/10.1117/12.759291
Event: SPIE Microelectronics, MEMS, and Nanotechnology, 2007, Canberra, ACT, Australia

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.

Citation Download Citation

Chen Zhang, M. Breedon, W. Wlodarski, and K. Kalantar-zadeh "Study of the alignment of multiwalled carbon nanotubes using dielectrophoresis", Proc. SPIE 6802, Complex Systems II, 680213 (5 January 2008); https://doi.org/10.1117/12.759291

ACCESS THE FULL ARTICLE