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Information × Registration Number 0221U107117, 0120U104248 , R & D reports Title Creation of a sensor system based on nanopowder materials for registration of gas mixtures popup.stage_title Head Popovych Dmytro I., д.ф.-м.н. Registration Date 27-12-2021 Organization Institute of Applied Problems of Mechanics and Mathematics named after Ya. S. Pidstryhach of the National Academy of Sciences of Ukraine popup.description2  Final research report for research and development project 2020.01/0331 consists of one part: – 123 p., 70 fig., 11 tabl., 82 references; Research object – structural, electronic, sensory and luminescent characteristics of nanostructures of semiconductor metal oxides. Research subject – processes of structure formation, regularities of change of electronic and optico-spectral properties of nanostructures of semiconductor metal oxides during gas adsorption. Methods: physico-mathematical modeling of the processes of formation of structures of nanopowder metal oxides with intrinsic defects and impurities during gas adsorption using the methods of the theory of the electron density functional and molecular dynamics. Obtaining nanopowders of semiconductor metal oxides using pulsed laser reactive technology suitable for use in gas sensors. The research, using the density functional theory, of the structure, electronic and gas-sensor properties of the pure, with intrinsic defects and doped nanoclusters (ZnO)n (n = 34, 60) was carried out. The character of formation of a crystalline state of the formed structures during gas adsorption was established using molecular dynamics calculations. It has been established that laser annealing leads to a noticeable redistribution of the intensities of the luminescence bands, and the formed structures have high gas sensitivity and indicate their suitability for the creation of a gas sensor system. A gas sensor system for gas analysis has been created and tested. Product Description popup.authors Bovhyra Rostyslav V Venhryn Yura I Mohylyak Ivan Adrianovych Popovych Dmytro Ivanovych Savka Stepan S Serednytski Andriy S popup.nrat_date 2022-03-09 Close