Magnetothermoelectrical properties of characteristic commutational contacts of thermoelements based on Bi85Sb15

M. M. Tagiyev

doi:10.1117/12.350910

10 June 1999 Magnetothermoelectrical properties of characteristic commutational contacts of thermoelements based on Bi₈₅Sb₁₅

M. M. Tagiyev

Author Affiliations +

Proceedings Volume 3819, International Conference on Photoelectronics and Night Vision Devices; (1999) https://doi.org/10.1117/12.350910
Event: International Conference on Photoelectronics and Night Vision Devices, 1998, Moscow, Russian Federation

Abstract

In present work study of dependencies of transional contacts r_k of extruded samples Bi₈₅Sb₁₅ solid solution with the alloy mass.%: 57Bi + 43Sn with melting temperature T_m approximately equals 412 K on the intensity of magnetic field and temperature. This contact alloy is broadly use at commutation of thermoelements on the base Bi-Sb system solid solution. At the fixing of contact on torahs of extruded samples Bi₈₅Sb₁₅ occurs a mutual diffusion of components of solid solution and contact alloy each to other. So as a result of diffusions of atoms Sn from the contact alloy in Bi₈₅Sb₁₅ solid solution near the contact appears near-contact layer of given solid solution, doped by atoms of tin. By doping near contact layer of branches of thermoelements on the base of Bi₈₅Sb₁₅ solid solution with donor impurities, compensating action of acceptor atoms, diffusing from the contact alloy in this layer, possible vastly lower r_k and raise efficiency of thermoelements.

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M. M. Tagiyev "Magnetothermoelectrical properties of characteristic commutational contacts of thermoelements based on Bi₈₅Sb₁₅", Proc. SPIE 3819, International Conference on Photoelectronics and Night Vision Devices, (10 June 1999); https://doi.org/10.1117/12.350910

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