Influence of hot phonons on the transport properties of single-wall carbon nanotubes

摘要

We investigate the effects of hot phonons on the transport properties of metallic single-wall carbon nanotubes lying on a substrate. A deterministic numerical scheme is applied to solve the system of Boltzmann equations for electrons and phonons. The simulations demonstrate that the optical phonons are strongly driven out of thermal equilibrium and considerably influence the electron transport at high bias. Comparisons of the theoretical results with experimental current-voltage characteristics exhibit very good agreement.