Zobrazeno 1 - 10
of 54
pro vyhledávání: '"V. Tsiumra"'
Autor:
M. O. Kushlyk, A. Pieniążek, Andrzej Suchocki, Yaroslav Zhydachevskyy, V. Tsiumra, Volodymyr Haiduchok, D. Sugak, Ihor I. Syvorotka, M. Aleszkiewicz
Publikováno v:
Applied Nanoscience. 12:317-334
In this paper technological aspects of preparation of silver nanostructures on garnet substrates and their impact on absorption and photoluminescence have been studied. For this purpose, the changes of plasmonic properties as a function of the Ag NPs
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Autor:
M. Baran, A. Kissabekova, A. Krasnikov, V. Tsiumra, L. Vasylechko, S. Zazubovich, Ya Zhydachevskyy
Publikováno v:
Optical Materials. 137:113584
Autor:
A. Krasnikov, Ya. Zhydachevskyy, M. Baran, V. Tsiumra, A. Kissabekova, S. Zazubovich, Aleksandr Lushchik, Andrzej Suchocki, Leonid Vasylechko
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 463:7-15
Characteristics of the intrinsic and Bi3+-related luminescence of YNbO4:Bi powders with different Bi contents are studied at 4.2–500 K by steady-state and time-resolved spectroscopy methods. The emission of YNbO4:Bi is suggested to be of an exciton
Autor:
V. Tsiumra, M. O. Kushlyk, Volodymyr Haiduchok, Ya. Zhydachevskyy, Ihor I. Syvorotka, D. Sugak, Andrzej Suchocki
Publikováno v:
Journal of Alloys and Compounds. 804:202-212
Silver (Ag) plasmonic structures on the surface of Сe and Yb co-doped yttrium aluminium garnet fluorescent epitaxial films were prepared by the magnetron sputtering technique. The nucleation and growth of Ag nanoparticles (NPs) were controlled by a
Autor:
A. Krasnikov, Ł. Wachnicki, M. Baran, S. Zazubovich, Martin Nikl, Ya. Zhydachevskyy, L. Lipińska, Leonid Vasylechko, V. Tsiumra, Andrzej Suchocki
Publikováno v:
Journal of Luminescence. 213:278-289
The paper contains detailed crystal structure and photoluminescence studies of the Bi3+ and Bi3+-Eu3+ co-doped Gd3Ga5O12 (GGG) garnet. The studied materials have been synthesized in the form of microcrystalline powders by the common solid-state react
Publikováno v:
Journal of Luminescence. 212:52-60
Steady-state and time-resolved emission and excitation spectra and the luminescence decay kinetics are studied in the 4.2–500 K temperature range for the blue intrinsic emission and the yellow Bi3+ - related emission of YVO4:Bi, LuVO4:Bi, and GdVO4
Autor:
A. S. Voloshinovskii, V. Tsiumra, Ya. Zhydachevskyy, Andrzej Suchocki, V. V. Vistovskyy, T. Malyi, A. V. Zhyshkovych, S.V. Syrotyuk, Ya. M. Chornodolskyy
Publikováno v:
Optical Materials. 89:480-487
Spectral luminescence parameters of pure and Bi-doped YVO4 microcrystals with different bismuth content (from 0.1 to 20 wt%) are studied in the 4.2–500 K temperature range. The broad photoluminescence band peaked at 570 nm is caused by localized ex
Autor:
Yaroslav Zhydachevskyy, V. Tsiumra, H.J. Kim, Nivin M. Ahmed, V. Mokina, Vitaliy Mykhaylyk, H. Kraus, Armin Wagner
Publikováno v:
Materialia. 4:287-296
Luminescence lifetime thermometry for remote temperature monitoring of cryogenic objects requires materials that exhibit a suitably large change of the luminescence kinetics at low temperatures. Results of systematic studies of the temperature-induce
Autor:
M. Baran, L. Lipińska, A. Wierzbicka, Andrzej Suchocki, Ihor I. Syvorotka, Ya. Zhydachevskyy, V. Tsiumra
Publikováno v:
Solar Energy Materials and Solar Cells. 185:240-251
In order to evaluate the quantum efficiency and to establish the mechanism of down-conversion processes in Bi3+−Yb3+ and Ce3+−Yb3+ co-doped YAG (Y3Al5O12) and GGG (Gd3Al5O12) garnets, direct measurements of quantum yield (QY) were performed along