Electrical conductivity of nanoring-based transparent conductive films: A mean-field approach

Abstract

We have studied the electrical conductivity of nanoring-based, transparent conductive films, these being promising elements for flexible electronic devices. Both the wire resistance and the junction resistance were taken into account. We have calculated the dependency of the electrical conductivity on the number density of the rings. We have proposed a mean-field approach to estimate the dependency of the electrical conductivity on the main parameters. Comparison of direct computations of the electrical conductivity and the estimates provided by the mean-field approach evidenced the applicability of this approach for those cases where the wire resistance dominates over the junction resistance and where both resistances are of the same order. For these two cases, both the direct computations and the mean-field approach evidenced a linear dependence of the electrical conductivity of the films on the number density of the conductive rings. By contrast, the dependence of the electrical conductivity on the number density of the conductive rings is a quadratic when the junction resistance dominates over the wire resistance. In this case, the mean-field approach significantly overestimates the electrical conductivity, since the main assumptions underlying this approach are no longer fulfilled.

6 pages, 8 figures, 34 references

References in corpus (3)

• Continuum Percolation Thresholds in Two Dimensions
• From percolating to dense random stick networks: Conductivity model investigation
• Transparent electrodes with nanorings: a computational point of view

Cited by in corpus (5)

• Electrical conductivity of nanorod-based transparent electrodes: Comparison of mean-field approaches
• Random 2D nanowire networks: Finite-size effect and the effect of busbar/nanowire contact resistance on their electrical conductivity
• Percolation and electrical conduction in random systems of curved linear objects on a plane: computer simulations along with a mean-field approach
• Transparent electrodes based on mixtures of nanowires and nanorings: A mean-field approach along with computer simulation
• Performance of Nanoring-based Transparent Conductors: a Computational Investigation