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Information × Registration Number 0218U002190, 0115U002389 , R & D reports Title Micro- and nanoferroelectric crystals with spatial inhomogeneities. Single crystals, glassceramics, thin films with special electrophysiclal properties popup.stage_title Head Trubitsyn Mykhailo Pavlovych, Доктор фізико-математичних наук Registration Date 30-01-2018 Organization Oles Honchar Dnipro National University popup.description2 The object of the study were charge transfer processes and phase states of singlecrystal, glass-ceramic and thin film materials based on ferroelectrics with special electrophysical properties. The aim of the work was to establish the regularities of the size effects, surface phenomena and doping on the ionic conductivity and phase state of single crystals, glass-ceramics and thin films based on ferroelectric compounds of the Li2O-xGeO2 system and lead-free sodium-bismuth titanate crystals Na0.5Bi0.5TiO3. The methods of investigation were: crystals growth from the melt to a seed, high-frequency magnetron sputtering of films, differential thermal analysis, X-ray phase analysis, dielectric, impedance, optical and radiospectroscopy methods. The nanostructured glass-ceramics of lithium germanates were synthesized, the regularities of the crystallization of the amorphous phase of Li2O-xGeO2 were established, mechanisms of the effect of phase composition and morphology on electrical properties were revealed. Crystals of Na0.5Bi0.5TiO3 and solid solutions based on it have been grown. Polycrystalline films Na0.5Bi0.5TiO3 were synthesized. The influence of the conditions of technological processing, doping, size effects on the electrophysical parameters and optical properties of the systems under study is analyzed. The results of the studies, samples of glass-ceramics, single crystals and films obtained can be used to develop experimental samples of devices of functional electronics Product Description popup.authors Агарков Костянтин Володимирович Бондар Дмитро Сергійович Волнянський Михайло Дмитрович Дяченко Анна Олександрівна Колісник Дарья Володимирівна Коптєв Михайло Михайлович Крузіна Тетяна Володимирівна Нестеров Олексій Олександрович Осецький Андрій Юрійович Попов Сергій Олексійович Потапович Юрій Миколайович Руцький Олександр Сергійович Сідак Василь Михайлович Смойловський Олександр Наумович Щетинкін Володимир Сергійович popup.nrat_date 2020-04-02 Close