EFFECT OF ONE-DIMENSIONAL ELECTRICAL-CONDUCTION ON THE THERMOELECTRICFIGURE OF MERIT

The carriers mobility in quasi-one-dimensional cylindrical quantum wir es with infinite potential confinement as a function of wire thickness has been calculated. The carriers scattering both on optical and acou stical phonons is taken into account. It is found that the mobility de creases with the decreasing of wire thickness from values greater to v alues much smaller than the bulk mobility. This effect substantially r educes the predicted earlier significant increase in the figure of mer it of materials prepared in a form of very thin quantum wires.