ISSN : 0970 - 020X, ONLINE ISSN : 2231-5039
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Abstract

Synthesis and Investigation of Electrical Properties of Carbon Nanotube – Porous Matrix Composites near the Percolation Threshold

Andrey Varfolomeev1,2, Valentin Solovey1, Ivan Volkov1and Thomas Maeder1,3

DOI : http://dx.doi.org/10.13005/ojc/340102


Abstract:

The composites based on single-walled carbon nanotubes (single-walled CNTs or SWCNTs) embedded in porous matrices with different structures were prepared and studied by using the impedance spectroscopy. The contributions of intra-CNT and inter-CNT conduction mechanisms in the composites were evaluated at various contents of SWCNTs from the analysis of their impedance spectra. The electrical percolation thresholds for the composites studied were determined by taking into account the tunneling through the potential barriers between SWCNTs.

Keywords:

Single-Walled Carbon Nanotubes; Porous Matrix Composites; Carbon Nanotube Based Dispersions; Impedance Spectroscopy; Conduction Mechanisms; Percolation Threshold

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