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Information × Registration Number 0219U100714, 0116U002578 , R & D reports Title Effects of nanostructurization in borate and chalcogenide materials with glass structure for advanced applications in optoelectronics popup.stage_title Head Shpotyuk Oleg I., Доктор фізико-математичних наук Registration Date 01-03-2019 Organization Vlokh Institute of Physical Optics popup.description2 The composite features of intrastructural inhomogeneities in chalcogenide semiconductor glasses (ChSG) and borate glasses (BG) caused by the introduction of metal activators were investigated, their structural and optical characterization was carried out: - LiKB4O7: Ag (Gd, Ag) and LiCaBO3: Ag (Gd, Ag) BG with formed by annealing Ag nanoparticles (NP) were synthesized; their plasmonic spectra and nonlinear-optical properties were investigated; sizes of NP were estimated (1.0-3.8 nm); microstructural mechanisms of Ag NP formation in the BS have been developed; - Ga-modified ChSG, optimized by Sb g-Ga2(As0.28Sb0.12Se0.60)98) and Te g-Ga2(As0.4Se0.6)88Te10), as well as activated by RE ions, were synthesized; the regions of their homogeneity, phase stratification and crystallization were determined; the spectral dependences of optical transmission were parametrized in depending on the content of RE activators and Ga; - microstructural characterization of functionality in RE-activated ChSG Gax[(As/Sb)2Se3]1-x was carried out; it has been shown that ChSG Ga2(As0.4Se0.6)88Te10, activated by RE ions, can be used as effective media of evanescent waveguide sensors; - the microstructure of the porous structure of BG Li2B4O7: Ag and ChSG As2Se3-Ga-RE was parametrized; interpretation of the positrons lifetime spectra in metal-activated BG and ChSG was presented; model of reduction of positron trapping has been developed to predict the functioning of RE-activated glassy media; - using the software package Hyper-Chem, a quantum-chemical modeling of the effects of activators introduction in the BG and ChSG was carried out. The methodology for the nanostructural inhomogeneities creation in BG and ChSG with optimized characteristics for reproducible elements of infrared photonics, optoelectronics, sensory and opto-telecommunication equipment was reasoned. A model for describing the formation of the NP in the BG like Li2B4O7: Ag (Cu) and ChSG based on As2Se3-Ga-RE was proposed. Product Description popup.authors Adamiv Volodymyr T. Boyko Vitaliy T. Vlokh Rostyslav O. Krupych Oleg M. Martynyuk-Lototska Iryna Yuriyivna Mys Oxana Grygorivna Padlyak Bohdan V. Skab Ihor P. Teslyuk Igor M. Shpotyuk Lyubov Y. Shpotyuk Oleg I. popup.nrat_date 2020-04-02 Close