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 | Nanotech 2006 Vol. 1
Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 1
Chapter 2: Carbon Nanotubes |
| | Determination of relative concentrations of metallic and semi-conducting SWNTs in suspension via dielectrophoresis | | Authors: | N. Mureau, E. Mendoza, K.F. Hoettges, S.R.P. Silva and M.P. Hughes | | Affilation: | University of Surrey, UK | | Pages: | 110 - 112 | | Keywords: | dielectrophoresis, chirality, characterisation, impedance | | Abstract: | Dielectrophoresis (DEP) is a phemomenon of induced particle motion in non-uniform electric fields. The effect is frequency dependent; by monitoring the motion of particles in AC fields and ananlysing the change in motion with frequency, it is possible to determine the electrical properties of nanoparticles in lab-on-a-chip systems. In this paper, we demonstrate how DEP can be used to determine the ratio of semiconducting and metallic carbon nanotubes in solution, by monitoring the frequency-dependent impedance change between two electrodes as a function of energising frequency. |  | View paper | | ISBN: | 0-9767985-6-5 |
| Pages: | 871 |
| Hardcopy: | $185.00 |
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