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) Temperature dependence of (a) overall thermal conductivity , (b) the Lorenz number L, (c) carrier thermal conductivity , (d) lattice and bipolar contributions of thermal conductivity ( – for Bi Sb Te with X mol% of MnSb Se (X = 0, 1, 2, 3, and 4), 2 mol% of Mn Cu Sb Se samples, and the reference nano-crystalline BiSbTe sample.^[10]