Electrical properties of isolated poly(3,4-ethylenedioxythiophene) nanowires prepared by template synthesis - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Polymers for Advanced Technologies Année : 2009

Electrical properties of isolated poly(3,4-ethylenedioxythiophene) nanowires prepared by template synthesis

Jean-Luc Duvail
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Z.J. Chen
  • Fonction : Auteur
A.Z. Jin
  • Fonction : Auteur
C.Z. Gu
  • Fonction : Auteur

Résumé

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.

Dates et versions

hal-00432281 , version 1 (16-11-2009)

Identifiants

Citer

Y.Z. Long, Jean-Luc Duvail, Z.J. Chen, A.Z. Jin, C.Z. Gu. Electrical properties of isolated poly(3,4-ethylenedioxythiophene) nanowires prepared by template synthesis. Polymers for Advanced Technologies, 2009, 20 (6), pp.541. ⟨10.1002/pat.1379⟩. ⟨hal-00432281⟩
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