Improving the conductance of carbon nanotube networks through resonant momentum exchange

Abstract

We present a mechanism to improve the conductivity of carbon nanotube (CNT) networks by improving the conductance between CNTs of different chirality. We argue generally that a weak perturbation can greatly improve the inter-tube conductance by allowing momentum-conserving tunnelling. The mechanism is verified with a tight-binding model, allowing an investigation of its impact for a network containing a range of chiralities. We discuss practical implementations, and conclude that it may be effected by weak physical interactions, and therefore does not require chemical bonding to the CNTs.

6 pages, 4 figures

References in corpus (2)

• Influence of O2 and N2 on the conductivity of carbon nanotube networks
• Effects of Disorder and Momentum Relaxation on the Intertube Transport of Incommensurate Carbon Nanotube Ropes and Multiwall Nanotubes

Cited by in corpus (1)

• Efficient Chebyshev polynomial approach to quantum conductance calculations: Application to twisted bilayer graphene