50 research outputs found

    X-ray Diffraction Investigation of Sio2/Si Track Templates with Deposited Zn

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    Si/SiO2 /Zn structures are fabricated by the track template synthesis. SEM and AFM images of the surface after electrochemical deposition of zinc were obtained. XRD analysis of the deposited samples showed the creation of zinc oxide nanocrystals with Miller indexes (200) at θ=62,30 and (201) at θ=69,50 (PDF#361451-etalon)

    Creation of nanoporous SiO2/Si with precipitated Zn using track technology

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    Creation of nanoporous SiO2/Si with precipitated Zn using track technology

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    Structural defect creation by swift heavy ions in CaF2 single crystals

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    Calcium fluoride single crystals belong to the most popular optical materials due to their transparency in a wide spectral region..

    Luminescence of F2 and F3 + centres in LiF crystals irradiated with 12 MeV 12C ions

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    Dependences of the nanohardness and photoluminescence of F 2 and F 3 + centers on the depth in LiF crystals irradiated with 12 MeV 12 C ions to fluences 10 10 -10 15 ions/cm 2 were studied using laser scanning confocal microscopy, luminescent spectroscopy, and the nanoindentation method. The nanohardness measurements showed a significant hardening effect at the end of the ion run with the dominant contribution of defects formed by the mechanism of elastic collisions. The observed attenuation of the luminescence intensity at high fluences is associated with the intense nucleation of dislocations as traps for aggregate color centers.The work was carried out within the framework of the grant GF AP05134257 of the Ministry of Education and Science of the Republic of Kazakhstan; Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART

    Thermal stability of color centers in LiF crystals: dependence on radiation type and dose

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    Accumulation of radiation defects at irradiation is the complex result of consecutive and mutually independent events: formation of primary pair, spatial separation of its components and their transformation into stable ones under experimental conditions [1]..

    Thermal stability of color centers in LiF crystals: dependence on radiation type and dose

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    Accumulation of radiation defects at irradiation is the complex result of consecutive and mutually independent events: formation of primary pair, spatial separation of its components and their transformation into stable ones under experimental conditions [1]..

    CATHODOLUMINESCENT CHARACTERISTICS OF LANTHANIDE NIOBATES DOPED WITH Bi3+ IONS

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    Bismuth-doped lanthanide niobates YNbO4:Bi, LuNbO4:Bi, GdNbO4:Bi were studied by cathodoluminescence spectroscopy at various temperatures

    ZnSe2O5 nanocrystals synthesis in a nanoporous layer of silicon dioxide on silicon

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    Electrode processes in 3LiCl – 2KCl – UCl3 melts were studied at different temperatures using a variety of electrochemical techniques. The characteristic potentials and limiting cur-rent densities were determined both for potentiostatic and galvanostatic regimes of uranium electrodeposition. The different phase forms of metallic uranium were obtained during the electrorefining at various temperatures

    SURFACE MORTHOLOGY AND OPTICAL PROPERTIES OF SiO2/Si SYSTEM PRECIPITATED TIN

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    SiO2/Si samples were irradiated with 131Xe ions using an ion cyclotron accelerator DC-60 at Astana, Kazakhstan. We have reported results on SnO nanoclusters deposition into SiO2por/Si structures. Afterwards, nanoporous channels were fulfilled with Sn using chemical deposition techniques. Morphology of synthesized Si/SiO2/Sn system was investigated using scanning electron microscopy
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