Modeling semi-conductor thermal properties. The dispersion role

Details Modeling semi-conductor thermal properties. The dispersion role Modeling semi-conductor thermal properties. The dispersion role

2008-03-27

arxiv.org/abs/0803.3954v1

Physica B: Condensed Matter (2008) ..

Physics

Classical Physics

Scientific paper

10.1063/1.3086409

We study heat transport in semiconductor nanostructures by solving the Boltzmann Transport Equation (BTE) by means of the Discrete Ordinate Method (DOM). Relaxation time and phase and group velocitiy spectral dependencies are taken into account. The Holland model of phonon relaxation time is revisited and recalculated from dispersion relations (taken in litterature) in order to match bulk silicon and germanium values. This improved model is then used to predict silicon nanowire and nanofilm thermal properties in both ballistic and mesoscopic regimes.

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