Carbon nanotube conductance model in parabolic band structure

Abstract

Fermi dirac integral is applied to study the parabolic band structure of Carbon Nanotube (CNT) which is in the range of minimum band energy. In this letter electronic transport property of one dimensional carbon nanotube with parabolic band structures near the charge neutrality point is investigated. The temperature dependent conductance model which shows minimum conductance near the charge neutrality point and decreases by decreasing the temperature is presented. CNTs with micrometer length exhibit nondegenerate behavior on fundamental band structure similar to the conventional long channel devices.