Thermoelectric elements based on compounds of silicon and transition metals
M. I. FedorovA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. PetersburgV. K. ZaĭtsevA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. PetersburgF. Yu. SolomkinA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. PetersburgMikhail VedernikovA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg
ABI
Abstract
Semiconducting compounds based on silicides of 3d transition metals (MnSi1.75 and CoSi) are promising thermoelectric materials for mass-produced thermoelectric generators. Their practical use has been delayed so far by the lack of reliable switching. Electrochemical surface treatment technology and metal deposition were used to obtain thermal-cycling-resistant, switching and antidiffusion metal coatings (Ni, Co, Fe, Cr) with an electrical resistivity up to 10−6 Ω·cm2 in the metal-semiconductor region. This technology was applied to develop a series of thermoelements and thermoelectric generators having wide-ranging applications.
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