“…In this regard, metal antimonides, such as Co 4 Sb 12 , 17,18 Zn 4 Sb 3 , 19 ZnSb, 20,21 and Mg 3 Sb 2 , 22 have received much attention due to their unique crystal structure, presence of eco-friendly elements, and superior thermoelectric performance in a wide range of temperatures. Among them, ZnSb, a p-type semiconducting intermetallic compound, has been widely considered as a promising thermoelectric material in the temperature range of 370–720 K, 23 and also due to availability of its counter n-type materials, such as InSb 0.95 , 24 InSb 0.98 Bi 0.02 , 25 and La–InSb 26 showing the peak zT in the same temperature range. ZnSb crystallizes in the orthorhombic structure with a space group of Pbca , forming a structure similar to CdSb/GaSb.…”