Improved thermoelectric performance in p-type Bi0.48Sb1.52Te3 bulk material by adding MnSb2Se4

Improved thermoelectric performance in p-type Bi_0.48Sb_1.52Te₃ bulk material by adding MnSb₂Se₄

Cao Binglei^{1, 2}, Jian Jikang^{1, †}, Ge Binghui², Li Shanming², Wang Hao², Liu Jiao¹, Zhao Huaizhou^{2, ‡}

(color online) (a) XRD patterns for composites Bi Sb Te obtained by adding X mol% of MnSb Se (from (a) to (e): X = 0, 1, 2, 3, and 4; (f): X = 2 Mn Cu Sb Se . (b) Lattice parameters ( ) of Bi Sb Te composites, obtained by adding X mol% of MnSb Se . (c), (d) The low- and high-magnification SEM images of doped Bi Sb Te (obtained by adding 2 mol% of MnSb Se .