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arXiv · 1112.4656

Structural and electrical characterization of hybrid metal-polypyrrole nanowires

L. Gence·S. Faniel·C. Gustin·S. Melinte·V. Bayot·V. Callegari·O. Reynes·S. Demoustier-Champagne
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Abstract

We present here the synthesis and structural characterization of hybrid Au-polypyrrole-Au and Pt- polypyrrole-Au nanowires together with a study of their electrical properties from room-temperature down to very low temperature. A careful characterization of the metal-polymer interfaces by trans- mission electron microscopy revealed that the structure and mechanical strength of bottom and upper interfaces are very different. Variable temperature electrical transport measurements were performed on both multiple nanowires - contained within the polycarbonate template - and single nanowires. Our data show that the three-dimensional Mott variable-range-hopping model provides a complete framework for the understanding of transport in PPy nanowires, including non-linear current-voltage characteristics and magnetotransport at low temperatures.

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L. Gence, S. Faniel, C. Gustin, S. Melinte, V. Bayot, V. Callegari, O. Reynes, S. Demoustier-Champagne. 2011-12-20. Structural and electrical characterization of hybrid metal-polypyrrole nanowires. https://doi.org/10.1103/physrevb.76.115415

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