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Non-Lithographic Fabrication of PEDOT Nanowires Between Fixed Au Electrodes

Das, Arindam, Lei, C. H., Elliott, Martin, Macdonald, John Emyr and Turner, M. L. 2006. Non-Lithographic Fabrication of PEDOT Nanowires Between Fixed Au Electrodes. Organic Electronics 7 (4) , pp. 181-187. 10.1016/j.orgel.2005.12.006

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Abstract

Poly(3,4-ethylenedioxythiophene) (PEDOT) nano-wires have been electrochemically grown between fixed Au electrodes on an insulating SiO2 substrate. The local DC electric field between the electrodes was used to control the diffusion of the 3,4-ethylenedioxythiophene (EDOT) monomer which was then polymerised in situ by the same applied field to create a stable, insoluble wire of width 500–700 nm. Relatively smooth and conducting nano-wires (10 S cm?1) resulted from the application of step-wise decreasing DC voltages. The PEDOT wire was characterised using Raman spectroscopy and atomic force microscopy (AFM). Current-voltage measurements indicate Ohmic and space-charge limited conduction, depending on applied bias, for Au electrodes.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Uncontrolled Keywords: Poly(3,4-ethylenedioxythiophene); Nano-wires; Atomic force microscopy; Raman spectroscopy and conductivity
ISSN: 1566-1199
Last Modified: 04 Jun 2017 01:41
URI: http://orca.cf.ac.uk/id/eprint/1638

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