Differential thermopower of a CNT chiral carbon nanotube

Abstract

The differential thermopower of a chiral carbon nanotube (CNT) was calculated using a tractable analytical approach. We obtained an expression for the electrical conductivity σ and the thermopower α. The results were numerically analysed. We noted from the values of α that the material can behave as a semimetal, n-type semiconductor and a p-type semiconductor, depending on the parameters of the CNT. We propose the use of the CNT as a thermoelement.