A5015763927- Advanced Thermoelectric Materials and Devices
- Topological Materials and Phenomena
- Thermodynamic and Structural Properties of Metals and Alloys
- Advanced Thermodynamics and Statistical Mechanics
- Advanced Semiconductor Detectors and Materials
- Phase-change materials and chalcogenides
- Material Science and Thermodynamics
- Thermal Radiation and Cooling Technologies
- Solidification and crystal growth phenomena
- Semiconductor materials and interfaces
- Surface and Thin Film Phenomena
- Physics of Superconductivity and Magnetism
- Regional Socio-Economic Development Trends
- Quantum and electron transport phenomena
- Quantum many-body systems
- Material Properties and Applications
- Thermal properties of materials
National Technical University "Kharkiv Polytechnic Institute"
2015-2024
Institute of Electron Physics
2022
Vinnytsia National Technical University
2022
Relevance. Solid solutions Bi2 (Te1-xSex )3 are effective materials for an n-leg of thermoelectric cooling devices. Recently, concentration anomalies properties with a low impurity content were detected in these solid (x ~0.01). It is important to establish whether similar would be observed on the dependence thermal conductivity λ from composition solution, since one parameters that determine quality factor material. Purpose. The purpose this study was investigate dependences solution...
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The existence of a range an anomalous growth in charge carrier mobility under the transition to heavy doping is established for Bi2Te3 -Sb2Te3 solid solutions. This confirms our suggestion about universal character critical phenomena accompanying from impurity discontinuum continuum. experimental results are analyzed terms percolation theory taking into account alloy scattering and spatial correlations centers.
Sb <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> Te xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> - Bi semiconducting solid solutions are presently the best low-temperature thermoelectric materials, which extensively used in manufacturing refrigerant devices of different types. The dependences their and other properties on solution composition were investigated a number works [1]. As far as mechanical concerned, particular...
Today, solid solutions based on antimony and bismuth tellurides are among the most widely used materials for p-legs of thermoelectric converters at room temperature below. This paper presents results a study galvanomagnetic properties (electrical conductivity σ, Hall coefficient RH, mobility charge carriers μH) (Bi1-хSbх)2Te3 in range compositions close to pure telluride (x = 1 – 0.96) temperatures T 80 K 300 K. The was carried out cast polycrystalline samples obtained by method...
A detailed investigation of the composition dependences magnetoresistance for polycrystalline Bi <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1−x</inf> Sb xmlns:xlink="http://www.w3.org/1999/xlink">x</inf> solid solutions in a concentration range x = 0 − 0.07 was performed at 300 K weak and strong magnetic field. It shown that are clearly expressed nonmonotonic type. The presence anomalies confirmed had been earlier observed 0.1 on cast...