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Features of Charges Transfer in the Polyethylene Glycol / Carbon Nanotubes System

Author(s): E.A. Lysenkov | V.V. Klepko

Journal: Journal of Nano- and Electronic Physics
ISSN 2077-6772

Volume: 5;
Issue: 3;
Start page: 03052-1;
Date: 2013;
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Keywords: Percolation behavior | Polymer nanocomposites | Conductivity | Tunneling | Carbon nanotubes

The research of the electrical properties of the systems based on polyethylene glycol and carbon nano-tubes near-by the percolation threshold is done using the method of impedance spectroscopy. It is estab-lished that the percolation threshold for these systems is 0,5%, and critical index t  1,17. It is discovered that non-conducting polymeric film appears between separate nanotubes. The thickness of the film which is 7-8 Å and its contact resistance which is 3•105 Ohm were derived using theoretical models. This explains a difference in conductivity of pure nanotubes and probed system after the percolation threshold.
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