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Fabrication of Colored Silica Glasses by Incorporation of Nano-Sized Colloids via Reactive Electrophoretic Deposition (REPD)
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 314Electronic Properties of Wires Fabricated via...

Electronic Properties of Wires Fabricated via Dielectrophoresis of Colloidal Gold Nanoparticles

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Abstract:

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.

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Electrophoretic Deposition: Fundamentals and Applications II

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Periodical:

Key Engineering Materials (Volume 314)

Pages:

121-126

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.314.121

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Cite this paper

Online since:

July 2006

Authors:

Derek R. Oliver, C.T. Harrower

Keywords:

Dielectrophoresis, Gold Nanoparticles (GNP), Landauer Conductance, Molecular Electronics

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