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Information × Registration Number 0217U003227, 0115U002404 , R & D reports Title Monocrystalline and low-dimensional, ecologically appropriate compounds for functional electronics. Piezoelectric materials. popup.stage_title Head Trubitsyn Mykhailo Pavlovych, Доктор фізико-математичних наук Registration Date 27-01-2017 Organization Dniepropetrovsk national university popup.description2 Object of research are the physical principles of improveness piezoelectric and akoustooptic efficiency of environmentally friendly materials. The purpose is to optimize the parameters of these materials by controlling the content of its own defects, the use of dimensional and surface phenomena, modifying the composition of the compounds near the morfotrophic phase boundary and doping. The methods of research are the synthesis of piezoelectric materials based on sodium bismuth titanate near the morfotrophic phase boundary; development of heat treatment and alloying technology to control structural defects; growing single crystals NaBi(MoO4)2, BiVO4, LiNbO3 for acoustooptics; thin films and low-dimensional systems based on the bismuth-sodium titanate; a comprehensive study of the physical properties of piezoelectric materials by dielectric methods, impedance, optical and EPR spectroscopy. As a result, it was obtained the single crystals of complex oxides NaBiTi2O6, NaBi(MoO4)2 BiV(Nb)O4 and LiNbO3 with the modification of growth conditions, doping, the creation of solid solutions, varying the ratio of components close to the stoichiometric composition, exposure, heat treatment in different environments. By RF magnetron sputtering obtained polycrystalline films of sodium bismuth titanate. The effects of doping, processing conditions, size effects on electrical parameters and optical properties of the films were investigated. The results are of fundamental and applied scientific value and can be used to create experimental models of functional electronics and integrated optics in IF NASU, IPM NASU, State Institut "Kvant-radiolokatcya", State Kyiv Design Bureau "Luch", Lviv State Factory "Lorta" and others. The work was approved and implemented in enterprises "Elent-Technics" Ltd. and "Crystal Business" Ltd. (Dnipro), as well as in the educational process. Product Description popup.authors Агарков Костянтин Володимирович Кирилов Андрій Миколайович Коптєв Михайло Михайлович popup.nrat_date 2020-04-02 Close