Inhibition of minority transport for elevating the thermoelectric figure of merit of CuO/BiSbTe nanocomposites at high temperatures

In BiSbTe based composite with 0.2 vol% of CuO nanoinclusions, thermoelectric figure of merit increases monotonically and largest ZT = 1.37 was obtained at 496 K by inhibiting the transport of minorities at introduced asymmetric interface potentials.