Investigation of the Magnesium Silicide -- Mg<sub>2</sub>Si Films

The silicides are ecologically friendly materials and they have a mechanical stability to corrosion, oxidation, decay and aggressive environments. It is known that a bulk magnesium silicide - Mg <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Si demonstrates semiconductor conductivity n-type character with energy band gap E <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">g</sub> =0.78 eV and solid solution based on the Mg <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Si-Mg <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Sn have figure of merit of ZT>1 [Samsonov, et. al. 1979]. Only small part of articles has devoted to thin Mg <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Si films on silicon. In this work the magnesium silicide films have been grown on silicon substrate by reactive diffusion method and their thermoelectric properties were investigated

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