ABSTRACT

This chapter presents a comprehensive overview of numerical studies on the thermal conductivity of carbon nanotubes and nanoribbons. Numerical simulation of heat conduction by nonequilibrium molecular-dynamics method shows that the thermal conductivity of nanotubes and nanoribbons increases monotonically in proportion to the logarithm of its length. Numerical results based on the equilibrium molecular-dynamics method also confirm the divergence of thermal conductivity. Besides, studies on the influence of mechanical strain and the presence of defects on the conductivity of nanoribbons and nanotubes are illustrated. Finally, the possibility of constructing high-performance thermal rectifiers based on carbon nanoribbons and nanotubes is analyzed.