Electronic transport in conducting polymer nanowire array devices

We report on the temperature dependent conductivity and current-voltage (I-V) properties of novel polyaniline nanowire array devices. Below 60 K, I-V measurements show a transition to non-linear behaviour, leading to the onset at 30 K of a threshold voltage, for potentials below which little current...

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Bibliographic Details
Published in:Nanotechnology 2011-03, Vol.22 (10), p.105202-105202
Main Authors: Kemp, N T, Newbury, R, Cochrane, J W, Dujardin, E
Format: Article
Language:English
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Summary:We report on the temperature dependent conductivity and current-voltage (I-V) properties of novel polyaniline nanowire array devices. Below 60 K, I-V measurements show a transition to non-linear behaviour, leading to the onset at 30 K of a threshold voltage, for potentials below which little current flows. By considering an intrinsic morphology of small conducting regions separated by tunnel junctions, we show that charging of the conducting regions leads to Coulomb blockade effects that can account for this behaviour.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/22/10/105202