The scientific seminar was organized at the Physico-Technical Institute of the Academy of Sciences of Uzbekistan. The objectives of the seminar are to conduct scientific discussions, analyze the state of current and pressing problems of semiconductor materials science, semiconductor instrumentation, photovoltaics. The seminar gives recommendations for solving certain problems in the field of semiconductor physics research. In the seminar, thesis for the Doctor of Physical and Mathematical Sciences (DSc), PhD (PhD) in physics and mathematics is approbated and gives recommendations for consideration in the Scientific Council for presentation to the defense. The seminar deals in detail with issues related to the technology of synthesis of semiconductor materials, the manufacture of ionizing radiation sensors, photodetectors, photovoltaic cells, solar cells, photodetectors, various instrument structures, and their physical principles of operation. Approbation of scientific articles of the Institute's authors is regularly carried out and the seminar gives a recommendation for open publications of scientifically completed works. The seminar examines and analyzes the current state of scientific work for applicants of DSc and PhD degrees, the state of scientific and technical work on fundamental and applied projects.