The thermal and electronic dynamics in low-dimensional systems on the base of Pb(Sn)-Ag-Sb-Te compounds for thermoelectric energy microgenerators with high efficiency
State registration number: 0117U003188
Project duration: 2016 – 2017
Grant holder: Vasyl Stefanyk Precarpathian National University
Project goals: Modeling of electrons and phonons dynamics for technology optimization for obtaining of thin film low-dimensional semiconductor materials on the basis of LAST-type compounds: Pb (Sn)-Ag-Sb (Bi)-Te by the method of open evaporation in vacuum for their subsequent application as thermoelectric micromodules for function in temperature range (300-450) K.
Specific project objectives are:
- Obtaining nanostructured condensates based on Pb(Sn)-Ag-Sb(Bi)-Te compounds by steam-phase methods, and studying their thermoelectric properties.
- Study of the change in the phase composition and structural state, depending on the technological terms for obtaining of the materials and its chemical composition.
Expected results: The technology of nanostructured condensates based on Pb(Sn)-Ag-Sb(Bi)-Te compounds will be obtained by vapor phase methods. The optimal parameters for formation of thermoelectric elements of n- and p-type conductivity will determine. For the material the obtained thermoelectric parameters are expected as follows: in absolute terms, the Seebeck coefficient, depending on the temperature range will be equals (150-300) μV/K, and the specific electrical conductivity at the same time will be at the level (200-350)Ohm-1cm-1. The dimensionless thermoelectric figure of merit ZT for material based on Pb(Sn)-Ag-Sb-Te is expected to be 0.8-1.1.
Partnership: B. I. Stepanov Institute of Physics National Academy of Sciences of Belarus.
Contact person and project manager in Vasyl Stefanyk Precarpathian National University: Prof. Lyubomyr NYKYRUY, Ph.D, e-mail: email@example.com