Thermoelectric power factor optimization in nanocomposites by energy filtering using NEGF

InIn this work, we use the Non-Equilibrium Greens Function (NEGF) method to illustrate the design details under which improvements in σS² can be achieved by energy filtering. We further demonstrate that variation of the design parameters, and most importantly in the barrier heights is a strong detrimental mechanism which can take away most of the energy filtering benefits.