Akademik Məlumat İdarəetmə Sistemi
International Conference on Modern Trends in Physics, Baku, Azerbaijan, 1 - 03 May 2019, pp.52-55
This paper presents the results of a study of temperature gradients arising on thermoelements manufactured on the basis of n-type Bi-Sb solid solutions (with 15 at.% Sb) and 69% Sb2Te3+27% Bi2Te3+4% Sb2Se3 in the temperature range from 130 K to 300 K and magnetic field induction from B = 0 to B = 1.0 T. Crystals of solid solution 69% Sb2Te3+27% Bi2Te3+4% Sb2Se3 were grown by the Bridgman method and at 300 K had a thermoelectric figure of merit Z = 3.2x10(-3)K(-1). It is shown that the changes observed in the values of Z and Delta T. on thermoelements under the action of a magnetic field are mainly due to the change in the thermoelectric parameters of n-branches made of Bi-Sb crystals. It is shown that the main thermo-and magneto-thermoelectric parameters of energy converters developed on the basis of the extruded materials are close to the parameters of coolers manufactured on the basis of single-crystal materials. It was found that thermoelements and converters based on the developed material are distinguished by high reliability of parameters and are suitable for operation as part of electronic devices.