Cand. Sci. (Phys.-Math.), Assoc. Prof., Lead Researcher of the Laboratory of Energy Efficient Materials and Technologies, Belarusian State University (Belarus, 220030, Minsk, Nezavisimosti ave., 4); Assoc. Prof. of the Micro- and nanoelectronics Department, Belarusian State University of Informatics and Radioelectronics (Belarus, 220013, Minsk, Petrus Brovka st., 6)