Thermoelectric properties of a nanocontact
Materials Science
2007-05-23 v1 Mesoscale and Nanoscale Physics
Abstract
Thermoelectric properties of a nanocontact made of two capped single wall nanotubes (SWNT) are calculated within the tight-binding approximation and Green's function method. It is found that semiconducting nanotubes can have high Seebeck coefficient very near the actual Fermi energy. This in turn leads to very high figures of merit easily exceeding one. Modifying the properties by shifting the chemical potential can be achieved by doping or application of a (nano-)gate voltage. The presence of impurities near the contact also strongly modify the properties and this can be taken advantage of, in order to design devices with high thermopower and figures of merit.
Keywords
Cite
@article{arxiv.cond-mat/0510719,
title = {Thermoelectric properties of a nanocontact},
author = {Keivan Esfarjani and Mona Zebarjadi and Ali Shakouri and Yoshiyuki Kawazoe},
journal= {arXiv preprint arXiv:cond-mat/0510719},
year = {2007}
}
Comments
12 pages 6 figures