Determination of relative concentrations of metallic and semi-conducting SWNTs in suspension via dielectrophoresis

Mureau, N, Mendoza, E, Hoettges, KF, Silva, SRP and Hughes, MP (2006) Determination of relative concentrations of metallic and semi-conducting SWNTs in suspension via dielectrophoresis

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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.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Divisions :	Surrey research (other units)
Authors :	Name Email ORCID Mureau, N Mendoza, E Hoettges, KF k.hoettges@surrey.ac.uk Silva, SRP s.silva@surrey.ac.uk Hughes, MP m.hughes@surrey.ac.uk
Date :	8 December 2006
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 11:16
Last Modified :	23 Jan 2020 16:39
URI:	http://epubs.surrey.ac.uk/id/eprint/830660

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