Monte Carlo modeling of phonon transport in nanodevices

Abstract

Heat transport in nanostructured semiconductor devices has been investigated. Numerical simulations of acoustic phonon propagation through a dedicated Monte Carlo model in nanodevices have been performed. Material dispersion curves are taken into account and the Boltzmann collisional term is considered under the relaxation time approximation. The method allows the calculation of temperature fields at small time and space scales. Furthermore, confining effects on thermal conductivity due to boundary scattering in nanowires and nanofilms are displayed for several thicknesses and temperatures. © 2007 IOP Publishing Ltd.