Theoretical study on electronic structure and thermoelectric properties of PbSxTe1−x(x = 0.25, 0.5, and 0.75) solid solution Project supported by the National Natural Science Foundation of China (Grant Nos. 11647010 and 11704020), the Higher Education and High-quality and World-class Universities (Grant No. PY201611), and the Fund for Disciplines Construction from Beijing University of Chemical Technology (Grant No. XK1702). |
(color online) The special quasi-random structures of PbSxTe1−x solid solution with (a) x = 0.25, (b) x = 0.5, and (c) x = 0.75, respectively. The number of atoms in the SQS unit cell is 32. |