Over the past couple of decades, thermoelectric Mg₃Sb₂ and its derivatives have attracted increasing attention for thermoelectric applications. This is enabled by the richness in composition for manipulating both electronic and thermal properties and by the intrinsic low lattice thermal conductivity. With existing efforts on these materials, the thermoelectric figure of merit has been significantly improved to compete with conventional thermoelectrics, while many of these materials keep the compositions cheap and less‐toxic elements only. Here, not only the control of defects, band structure, electronic transport properties, and lattice thermal conductivity for these materials, but also the proven strategies on transport property manipulation are summarized. These strategies are well demonstrated for advancing thermoelectric Mg₃Sb₂ and its derivatives, and the principles used are believed to be equally applicable for many other thermoelectric materials. In addition, perspectives for possible further advancements in this class of thermoelectric materials are shown.

中文翻译：

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Mg3Sb2及其衍生物的热电研究进展

在过去的几十年中，热电Mg ₃ Sb ₂其衍生物已经在热电应用中引起了越来越多的关注。这是由于用于控制电子和热性能的成分丰富以及固有的低晶格热导率。通过对这些材料的现有努力，与常规热电产品竞争的热电性能已得到显着改善，而许多这些材料仅使组合物保持便宜且毒性较小。在此，不仅总结了这些材料的缺陷，能带结构，电子传输性质和晶格热导率的控制方法，而且总结了行之有效的传输性质操纵策略。这些策略已被证明可以促进热电Mg ₃ Sb _{2的发展。}据信，其衍生物，以及所使用的原理同样适用于许多其他热电材料。另外，示出了在此类热电材料中可能进一步发展的透视图。