Abstract
We have studied the influence of different statistical distributions of various parameters describing the structural and physical properties of carbon nanotube (CNT) networks on their electrical properties. We observed a significant dependence on the distribution of structural parameters (length, diameter, and angle), but nearly no impact for a statistical distribution of the tube-tube resistance beyond percolation threshold. The variation of the conductance of the CNT network as a function of the CNT density observed experimentally can be accurately reproduced through simulations by considering a tube-tube resistance centered at 0.1–1.0 MΩ, in agreement with the experimental estimation. Since the number of tube-tube contacts is increasing rapidly with the size of the simulated network, a statistical representation of tube-tube resistances for large CNT network models does not introduce a significant variation.
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