Tunneling conductivity in anisotropic nanofibre composites: a percolation-based model

Avik P. Chatterjee; Claudio Grimaldi

doi:10.1088/0953-8984/27/14/145302

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arXiv · 1503.05955

Tunneling conductivity in anisotropic nanofibre composites: a percolation-based model

Avik P. Chatterjee·Claudio Grimaldi

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Abstract

The Critical Path Approximation ("CPA") is integrated with a lattice-based approach to percolation to provide a model for conductivity in nanofibre-based composites. Our treatment incorporates a recent estimate for the anisotropy in tunnelingbased conductance as a function of the relative angle between the axes of elongated nanoparticles. The conductivity is examined as a function of the volume fraction, degree of clustering, and of the mean value and standard deviation of the orientational order parameter. Results from our calculations suggest that the conductivity can depend strongly upon the standard deviation in the orientational order parameter even when all the other variables (including the mean value of the order parameter ) are held invariant.

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BibTeX RIS

Avik P. Chatterjee, Claudio Grimaldi. 2015-03-19. Tunneling conductivity in anisotropic nanofibre composites: a percolation-based model. https://doi.org/10.1088/0953-8984/27/14/145302

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