Electronic and thermoelectric properties of Mg2GexSn1−x (x = 0.25, 0.50, 0.75) solid solutions by first-principles calculations

Electronic and thermoelectric properties of Mg₂Ge_xSn_1−x (x = 0.25, 0.50, 0.75) solid solutions by first-principles calculations

Li Kai-yue, Lu Yong^†, Huang Yan, Shao Xiao-hong^‡

(color online) Calculated zT map of Mg₂Ge_xSn_1−x with (a) x = 0.25, (b) x = 0.5, and (c) x = 0.75 as a function of the carrier concentration n and the temperature T, respectively. The negative scale of the x axis stands for the n-type, while the positive scale represents the p-type.