TITLE:
External Electric Field Effect on Electrons Transport in Carbon Nanotubes
AUTHORS:
Sulemana S. Abukari, Samuel Y. Mensah, Musah Rabiu, Kofi W. Adu, Natalia G. Mensah, Kwadwo A. Dompreh, Anthony Twum, Matthew Amekpewu
KEYWORDS:
Carbon Nanotubes; Electric Field; Electric Current Density; Negative Differential Conductivity
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.3 No.4,
October
15,
2013
ABSTRACT: We consider a simple model of carbon nanotubes (CNTs) subject to external electric field E(t). Using a tight-binding approximation for the description of energy bands of CNTs, together with the standard Boltzmann transport equation and constant relaxation time, we predict the effect of self-induced transparency and absolute negative conductivity. The predicted effects may be useful in diagnostics of carbon nanotubes as well as in the amplification and efficiency conversion of electromagnetic signals.