Improved thermoelectric performance in p-type Bi _0.48 Sb _1.52 Te ₃ bulk material by adding MnSb ₂ Se ₄

Bismuth telluride (BiTe based alloys, such as p-type Bi Sb Te , have been leading candidates for near room temperature thermoelectric applications. In this study, Bi Sb Te bulk materials with MnSb Se were prepared using high-energy ball milling and spark plasma sintering (SPS) process. The addition of MnSb Se to Bi Sb Te increased the hole concentration while slightly decreasing the Seebeck coefficient, thus optimising the electrical transport...