This article is cited in 28 papers

Solids

Frequency dependence of the electrical conductivity in Ag/PAN nanocomposites

M. A. Kudryashov^a, A. I. Mashin^a, A. A. Logunov^a, G. Chidichimo^b, G. De Filpo<sup>b

a</sup> Lobachevsky State University of Nizhny Novgorod
^b Department of Chemistry, University of Calabria, P. Bucci-15c, 87036 Rende (CS), Italy

Abstract: The frequency dispersion of the electrical conductivity of silver/polyacrylonitrile nanocomposite films is studied at various temperatures and AgNO$_3$ contents in an initial mixture. The frequency dependences of the nanocomposites in the range 10$^3$–10$^6$ Hz are found to be well described by power law $f^{0.8}$. A charge transfer mechanism responsible for the conductivity of the nanocomposites is proposed. Silver clusters Ag$_4^{2+}$ and Ag$_8^{2+}$ are assumed to be present in the polymer.

Received: 16.08.2011
Accepted: 01.11.2011

 English version: Technical Physics, 2012, 57:7, 965–970

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