Electronic Properties of Wires Fabricated via Dielectrophoresis of Colloidal Gold Nanoparticles

Abstract:

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Gold nanoparticles were fabricated via the precipitation of gold that follows the reduction of tetrachloroauric acid in the presence of a ligand such as citric acid. Synthesis and stabilization of gold nanoparticles has been achieved in a variety of solution environments whose character ranges from polar (water) to non-polar such as dodecane. The size of the nanoparticles was measured through Mie theory analysis of extinction of UV-visible spectra and transmission electron microscope (TEM) images of particles dried onto a TEM grid. Successful mechanical ‘break-junction’ experiments in air and in the colloidal solutions demonstrate that the lowdimensional transport character observed in such experiments is not significantly affected by the solution/environment. Evidence has been obtained that, at and near the time of formation, the dielectrophoretically-grown wires formed within these colloidal suspensions have similar electrical transport characteristics to those found in mechanical break junctions.

Info:

Periodical:

Edited by:

A.R. Boccaccini, O. Van der Biest and R. Clasen

Pages:

121-126

DOI:

10.4028/www.scientific.net/KEM.314.121

Citation:

D. R. Oliver and C.T. Harrower, "Electronic Properties of Wires Fabricated via Dielectrophoresis of Colloidal Gold Nanoparticles", Key Engineering Materials, Vol. 314, pp. 121-126, 2006

Online since:

July 2006

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$35.00

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