The Electric Resistance And The Transport Properties Of Carbon Nanotube With A Cu Chain: A First-Principle Study

Abstract

The electric resistance and the transport properties of a carbon nanotube (5, 5) adsorbed with a copper chain connected with two copper end electrodes have been calculated by employing the nonequilibrium Green\u27s function and the Density Function Theory. The properties of the pure carbon nanotube (5,5) with the Cu electrodes have also been calculated as a reference. Both the equilibrium and the nonequilibrium conditions have been investigated, The results have shown that the electrical resistance of the metallic CNT (5,5) has been reduced by the adsorption of the Cu chain due to the interaction between the Cu and the CNT. The change of the 1-V curve slope is also explained in terms of the transmission spectrum. © 2013 Materials Research Society