2021
DOI: 10.1021/acsaem.1c00172
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Optimization of the Thermoelectric Properties of p-Type Mg2–yLiyGe1–xSnx and Mg2–yLiyGe1–zSiz with x, z = 0.1 and 0.2

Abstract: According to recent investigations on p-type Mg2 X (X = Si, Sn, Ge), p-type Mg2Ge is found to be far superior to the p-type binaries while having thermoelectric properties comparable to the best solid solutions of p-type Mg2(Si,Sn). The unexpectedly good properties are supposedly due to a nonrigid band structure with a temperature-dependent interband separation. Further optimization can be expected by alloying Si or Sn into the Ge site to lower the thermal conductivity, thereby increasing the figure of merit. … Show more

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