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Main directions of scientific research

Fundamental research

Electronic structure and low-temperature processes of charge transfer in metals:


Low-dimensional metal-insulator-semicondutor systems with swift heavy ion tracks:


Multicomponent metal-oxide compounds:


Optical and magneto-optical investigations of semiconductor materials:

  • Low-temperature (4.2 – 300 K) optical spectroscopy (reflection, absortion, luminescence, excitation spectra of luminescence) of semiconductor materials - Si, Ge, CdS, ZnO, InN, GaN, InGaN, Cu(In, Ga)Se2, CuInS2, etc.;
  • Determination of fundamental optical parameters and electronic band structure of semiconductor compounds;
  • Investigations of the influence of ionizing radiation (electrons, gamma rays, protons, etc.) on optical properties of semiconductors and wide band-gap oxides;
  • Research of the effect of magnetic fields up to 15 T on exciton states in semiconducting compounds with chalcopyrite structure - CuInSe2, CuInS2, CuGaSe2 at 4.2 K.

 

Applied Research

Production of cryogenic liquids (liquid helium, nitrogen) for:

  • Ensuring the needs of medical and scientific research institutions of the Republic of Belarus in liquid helium supply;
  • Cryoconservation of the allograft bank (biological prosthesises of heart valves) for the cardiac surgery;
  • Provision of medical centers with liquid nitrogen for ophthalmological operations, cosmetology and cryotherapy;
  • Enabling scientific organizations to carry out  low-temperature investigations.

Technical aspects of low-temperature investigations:


Devices created with a use of swift heavy ion track technology:


Novel materials and devices on the base of metal-oxide compounds:


Optical investigation methods:

  • Development of non-destructive optical methods for the control of parameters of the photoconversion of solar energy and a quality of structure of semiconductor materials on all stages of their manufacturing process.

 

New emerging areas of research

  • Investigations of nanosystems with carbon nanotubes in swift heavy ion tracks;
  • Development of scientific principles of creation of nanoelectronic devices (field emitters and field gas sensors) based on systems with carbon nanotubes in dielectric layers on the silicon substrate;
  • Development of physical principles of creation of ferroelectric sensors on the base of nanoporous  dielectric layers on silicon;
  • Optical Spectroscopy of Si-Ge nanostructures with Ge quantum dots of dimensions ~ 2-10 nm are used to create light-emitting structures and photodetectors in the infrared spectral region;
  • Non-destructive spectroscopic analysis of the parameters of photovoltaic devices based on Cu(In,Ga)Se2 chalcopyrite compounds;
  • Low-temperature microwave investigations of superconducting niobium cavities for linear electron accelerators;
  • Creation of new functional materials and structures based on anodized aluminum oxide.

 

 

Areas of work