Abstract
Thermoelectric (TE) devices convert heat energy directly into electricity, which requires highly efficient, eco-friendly, and reliable materials. The chalcopyrite compound zinc tin antimonide (ZnSnSb2) is a promising thermoelectric material that has high electrical conductivity, non-toxic, low cost, and plenty in nature. The ZnSnSb2was synthesized by simple one-step Solid-State Reaction (SSR) and studied their microstructural and electronic transport properties. The X-Ray Diffraction (XRD) pattern of the ZnSnSb2 exhibited a tetragonal crystal structure with ca ratio of 2 that indicates the valance band was degenerate, which was the reason for the low electrical resistivity of ZnSnSb2 (0.32 mΩ-cm at 325 K). Furthermore, the thermopower exhibited p-type behaviour and the maximum power factor ZnSnSb2 was found 39 µW/m-K2 at 542 K.
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