Enhanced nonlinear conductivity due to hot-electron injection in carbon nanotubes

S. S. Abukari, S. Y. Mensah, R. Musah, M. Amekpewu, N. G. Mensah, K. W. Adu

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We have theoretically obtained an expression for the current density in a terahertz field due to hot-electron injection in carbon nanotubes. The injection modifies the stationary distribution function and leads to a qualitative change in the behavior of the current-voltage characteristics and causes absolute negative conductivity. We compared the current-voltage characteristic behavior at different injection rates and observed a drastic change in the current density and absolute negative conductivity values. We propose that carbon nanotubes with hot-electron injection may be useful for high-frequency applications.

Original languageEnglish (US)
Pages (from-to)621-624
Number of pages4
JournalFizika Nizkikh Temperatur
Issue number7
StatePublished - 2022

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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