Browsing B6 – LU institūti un aģentūras / Institutes and agencies of the UL by Author "Pankratova, Viktorija"
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Evolution of free volumes in polycrystalline baga2o4 ceramics doped with eu3+ ions
Klym, Halyna; Karbovnyk, Ivan; Luchechko, Andriy; Kostiv, Yuriy; Pankratova, Viktorija; Popov, Anatoli I. (Multidisciplinary Digital Publishing Institute (MDPI), 2021)BaGa2O4 ceramics doped with Eu3+ ions (1, 3 and 4 mol.%) were obtained by solid-phase sintering. The phase composition and microstructural features of ceramics were investigated using X-ray diffraction and scanning electron ... -
Low-temperature luminescence of ScF3 single crystals under excitation by VUV synchrotron radiation
Pankratova, Viktorija; Purans, Juris; Pankratov, Vladimir (American Institute of Physics, 2020)Photoluminescence and excitation spectra of ScF3 single crystals have been measured under vacuum ultraviolet excitations utilizing undulator synchrotron radiation from 1.5 GeV storage ring of MAX IV synchrotron. The emission ... -
Luminescence properties and time-resolved spectroscopy of rare-earth doped SrMoO4 single crystals
Pankratova, Viktorija; Dunaeva, Elizaveta E.; Voronina, Irina S.; Kozlova, Anna P.; Shendrik, D.; Pankratov, Vladimir (Elsevier, 2022)Luminescence properties of nominally pure and doped with Eu3+ and Pr3+ ions SrMoO4 single crystals grown by the Czochralski method have been studied. Thermal quenching of intrinsic emission of pure and doped SrMoO4 single ... -
Study of phase composition, photocatalytic activity, and photoluminescence of TiO2 with Eu additive produced by the extraction-pyrolytic method
Serga, Vera; Burve, Regina; Krumina, Aija; Pankratova, Viktorija; Popov, Anatoli I.; Pankratov, Vladimir (Elsevier, 2021)Due to the unique properties and wide array of applications of nanocrystalline materials based on titanium dioxide, the study of new synthesis approaches remains relevant. In this study, within the framework of the ... -
Time-resolved luminescence and excitation spectroscopy of Co-doped Gd3Ga3Al2O12 scintillating crystals
Pankratova, Viktorija; Kozlova, Anna P.; Buzanov, Oleg A.; Chernenko, Kirill; Shendrik, Roman; Šarakovskis, Anatolijs; Pankratov, Vladimir (Nature Research, 2020)Cerium doped Gd3Ga3Al2O12 (GGAG) single crystals as well as GGAG:Ce single crystals co-doped by divalent (Mg2+, Ca2+) and tetravalent (Zr4+, Ti4+) ions have been studied by means of time-resolved luminescence as well as ...