“…Significant increases in TE performance and ZT in NWs and their networks have been reported [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. ZT values up to 1 for NWs based on several materials (Si, SiGe, InAs, InSb, Bi, PbTe, ZnO, SnSe, NiFe, and many more) have been investigated [ 11 , 14 , 15 , 16 ]. Since the pioneering work by Hicks and Dresselhaus, efforts have also been focused on utilizing the sharp features in the low-dimensional density-of-states to improve the power factor as well [ 17 , 18 ].…”