External Electric Field Effect on Electrons Transport in Carbon Nanotubes

• 作者: Anthony Twum Kofi W. Adu Kwadwo A. Dompreh Matthew Amekpewu Musah Rabiu Natalia G. Mensah Samuel Y. Mensah Sulemana S. Abukari
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 化学
• 关键词: Carbon NANOTUBES ELECTRIC Field ELECTRIC Current Density NEGATIVE Differential CONDUCTIVITY
• 年，卷（期）: 2013,（4）
• 页码范围: 169-172
• 页数: 4页
• 分类号: O6

摘要

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.