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  1. No Access

    Article

    Effect of Codopant Ions on the IR Photoluminescence of Cu2+ Impurity Centers in Corundum (α-Al2O3)

    We have studied broadband (1000–1600 nm) IR photoluminescence of polycrystalline corundum (α-Al2O3) samples containing copper impurity ions and additionally doped with ions of elements in the oxidation state 4+: ...

    A. N. Romanov, E. V. Haula, A. A. Kapustin, A. M. Kuli-zade… in Inorganic Materials (2023)

  2. No Access

    Article

    IR Photoluminescence of the RbBa2(PO3)5 Polyphosphate Containing Bi+ Impurity Centers

    The rubidium barium polyphosphate RbBa2(PO3)5 containing impurity bismuth monocations has been prepared via crystallization from a melt with the stoichiometric composition and melts containing excess of rubidium ...

    A. N. Romanov, A. A. Kapustin, E. V. Haula, A. M. Kuli-zade… in Inorganic Materials (2023)

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    Article

    Bismuth Monocation IR Photoluminescence in Mixed Cyclotriphosphates of Alkali and Alkaline Earth Metals

    Polycrystalline samples of the mixed cyclotriphosphates KMgP3O9, KCaP3O9, RbMgP3O9, RbCaP3O9, CsCaP3O9, and CsSrP3O9 containing Bi+ bismuth impurity monocations have been prepared via crystallization from a melt ...

    A. N. Romanov, E. V. Haula, A. A. Kostyukov, A. E. Egorov… in Inorganic Materials (2022)

  4. No Access

    Article

    Broadband infrared photoluminescence of TlCdI3 iodide doped with bismuth

    The Bridgman–Stockbarger method is used to prepare single-crystal TlCdI3 samples doped with bismuth. The material exhibits a broadband photoluminescence in the near-IR range with a maximum intensity at a waveleng...

    A. N. Romanov, D. N. Vtyurina, E. V. Haula… in Russian Journal of Physical Chemistry B (2017)

  5. No Access

    Article

    Optical absorption spectra of the Bi+ impurity center in CsCdBr3 ternary bromide

    Optical absorption spectra of the Bi+ impurity center isomorphically substituting Cs+ in CsCdBr3 are recorded over a wide temperature range (from 3.2 to 300 K). An analysis of the vibrational degrees of freedom o...

    A. N. Romanov, K. N. Boldyrev, D. N. Vtyurina… in Russian Journal of Physical Chemistry B (2016)

  6. No Access

    Article

    IR photoluminescence of Bi+ impurity centers in the RbY2Cl7 ternary chloride

    Single-crystal samples of RbY2Cl7 ternary chloride containing an Bi+ isomorphic impurity are prepared for the first time. The optical absorption spectra in the visible region and photoluminescence spectra in the ...

    A. N. Romanov, D. N. Vtyurina, E. V. Haula… in Russian Journal of Physical Chemistry B (2016)

  7. No Access

    Article

    Luminescent properties of Bi-doped polycrystalline KAlCl4

    We observed a high strength near-infrared luminescence in Bi-doped KAlCl4 polycrystalline material. Luminescence dependence on the excitation wavelength and temperature of the sample was studied. Our experimental...

    A. A. Veber, A. N. Romanov, O. V. Usovich, Z. T. Fattakhova… in Applied Physics B (2012)