Highly effective Mg 2 Si 1 − x Sn x thermoelectrics

Results of detailed investigations of ${\mathrm{Mg}}_{2}{B}^{\mathrm{IV}}$ $({B}^{\mathrm{IV}}=\mathrm{Si},\phantom{\rule{0.3em}{0ex}}\mathrm{Ge},\phantom{\rule{0.3em}{0ex}}\mathrm{Sn})$ compounds and their quasibinary alloys are presented. Our analysis revealed that ${\mathrm{Mg}}_{2}\mathrm{Si}\text{\ensuremath{-}}{\mathrm{Mg}}_{2}\mathrm{Sn}$ system has the most promising for thermoelectric applications combination of transport properties and band structure features. The $n$-type ${\mathrm{Mg}}_{2}{\mathrm{Si}}_{1\ensuremath{-}x}{\mathrm{Sn}}_{x}$ solid solutions were studied in broad range of compositions and electron concentration (up to…

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  International Science and Technology Center