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Gated Si nanowires for large thermoelectric power factors
Neophytos Neophytou, Hans Kosina
We investigate the effect of electrostatic gating on the thermoelectric power factor of p-type Si nanowires (NWs) of up to 20nm in diameter in the [100], [110] and [111] crystallog…
Thermal conductivity of silicon nanomeshes: Effects of porosity and roughness
Stefanie Wolf, Neophytos Neophytou, Hans Kosina
We theoretically investigate thermal conductivity in silicon nanomeshes using Monte Carlo simulations of phonon transport. Silicon membranes of 100nm thickness with randomly locate…
Anomalous diameter dependence of thermal transport in ultra-narrow Si nanowires
Hossein Karamitaheri, Neophytos Neophytou, Hans Kosina
We present atomistic valence force field calculations of thermal transport in Si nanowires of diameters from 12nm down to 1nm. We show that as the diameter is reduced, the phonon d…