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Long, Y. Z., Duvail, J. L., Chen, Z. J., Jin, A. Z. & Gu, C. Z. (2009) Electrical properties of isolated poly(3,4-ethylenedioxythiophene) nanowires prepared by template synthesis. Polym. Adv. Technol. 20 541–544.
Added by: Laurent Cournède (2016-03-10 21:41:24) |
| Type de référence: Article DOI: 10.1002/pat.1379 Numéro d'identification (ISBN etc.): 1042-7147 Clé BibTeX: Long2009a Voir tous les détails bibliographiques  |
Catégories: PMN Mots-clés: conducting polymers, Conductivity, magnetoresistance, nanofibers, nanotubes, nanowires, pedot, polypyrrole, template synthesis, transport Créateurs: Chen, Duvail, Gu, Jin, Long Collection: Polym. Adv. Technol. |
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| Résumé |
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Electrical conductivity, current-voltage (I-V) characteristics, and low-temperature magnetoresistance of template-synthesized poly(3,4-ethylenedioxythiophene) (PEDOT) nanowires are reported. The room-temperature conductivity of the semiconducting nanowire with a diameter of 82 nm is about 80 S/cm. It is found that with lowering temperature, the I-V curves show a transition from linear to nonlinear around 50 K and a clear Coulomb-gap-like structure appears on the differential conductance (dl/dV) curves possibly due to enhanced electron-electron interaction. The resistance below 70 K is dependent on the applied bias voltage used in the resistance measurements due to the nonlinear I-V characteristics. The magnetoresistance below 10 K is positive and increases with lowering temperature due to the wavefunction shrinkage effect on hopping conduction. Copyright (C) 2009 John Wiley \& Sons, Ltd.
Added by: Laurent Cournède |