Dokudovskaya Anna Konstantinovna

@kpfu.ru

junior researcher, Department of Quantum Electronics and Radiospectroscopy
Kazan Federal University

Dokudovskaya Anna Konstantinovna


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https://researchid.co/annaginkel

RESEARCH, TEACHING, or OTHER INTERESTS

Electronic, Optical and Magnetic Materials
13

Scopus Publications

Scopus Publications

  • Impact of Bi3+co-doping on local structure, EPR spectra and luminescence properties of Yb3+probe ions in CeO2nanoparticles
    A.K. Ginkel, O.A. Morozov, S.L. Korableva, M.S. Pudovkin, R.M. Rakhmatullin, A.A. Rodionov, V.V. Semashko
    Optical Materials, 2026
  • Enhanced Photoluminescence in CeF3–YF3–TbF3 Colloids via Gold Nanoparticles
    A. S. Nizamutdinov, T. M. Minnebaev, A. V. Astrakhantseva, A. K. Ginkel, E. A. Izbasarova, B. R. Murtazin, V. V. Semashko, A. M. Burov, N. G. Khlebtsov, M. S. Pudovkin
    Bulletin of the Russian Academy of Sciences Physics, 2025
    Abstract The enhancement of photoluminescence in colloids represents a vital field of photonics, advancing real-world applications in lighting, sensing, and beyond. A colloidal ternary system CeF3–YF3–TbF3 emits green photoluminescence (PL) under ultraviolet pulsed pumping. In this paper, we demonstrate that introducing gold nanoparticles (Au NPs) to the colloidal solution enhances PL via indirect optical transitions. Contrary to common expectations, larger Au NPs with a diameter of 95 nm exhibit a 2.5-fold enhancement in PL, whereas smaller Au NPs enabling a high-Q plasmon resonance, shows significantly less enhancement. Herein, we represent a novel mechanism for PL enhancement enabled by green PL acting as the pump source.
  • Double-phase Nd3+, Yb3+:CeF3/CeO2 nanoparticles as potential materials for optical temperature sensing
    A.K Ginkel, R.M Rakhmatullin, O.A Morozov, I.A Zagrai, S.L Korableva, M.S Pudovkin
    Optical Materials, 2025
  • Air-Annealing Impact on Spectroscopic Properties of the Nd3+ (1 mol %):YF3 Phosphor
    A. K. Ginkel, V. V. Semashko, O. A. Morozov, M. S. Pudovkin
    Bulletin of the Russian Academy of Sciences Physics, 2024
    Abstract We report on the synthesis of Nd3+ (1 mol %):YF3 phosphors obtained via co-precipitation from aqueous solutions. Annealing in air of the synthesized Nd3+ (1 mol %):YF samples resulted in the additional formation of an oxygen-vacancy complex (OF–OV complex). The luminescence intensity of the OF–OV complex increased by a factor of 12.5 relative to the non-annealed sample. The impact of oxygen-vacancy defects (OF–OV complex) on the luminescent properties of samples that doped with Nd3+ ions in temperature range from 80 to 320 K was studied. It was suggested that the thermal trapping of charge carriers by the defective OF–OV complex at low temperatures (≈80 K) leads to an increase in the intensity of defect luminescence compared with the luminescence of Nd3+ ions and vice versa. It was found that the energy transfer between the OF–OV complex and Nd3+ ions is unlikely.
  • Investigation of Energy Transfer Processes in Downconversion Luminescence in BaY2F8 Crystals with Coactivation by Tb3+–Yb3+ Ions
    A. M. Zubareva, A. A. Shavelev, A. A. Shakirov, A. K. Ginkel, I. D. Sidorov, A. S. Nizamutdinov
    Bulletin of the Russian Academy of Sciences Physics, 2024
    Abstract The spectral and kinetic characteristics of BaY2F8 crystals with coactivation by Tb–Yb ions under excitation at a wavelength of 266 nm were studied. Luminescence of Yb3+ ions was detected in the NIR spectral range because of charge transfer processes. Studies at low-temperature have not shown the cooperative energy transfer, as well as single-photon processes of direct energy transfer to acceptor ions have been found. The quantum yields were measured, taking values of 70.3, 49.3, and 55.05% for 2, 5, and 10 at % ytterbium ion concentrations, respectively.
  • EPR and optical study of erbium-doped CeO2 and CeO2 / CeF3 nanoparticles
    M.S. Pudovkin, O.A. Morozov, S.L. Korableva, R.M. Rakhmatullin, V.V. Semashko, A.K. Ginkel, A.A. Rodionov, A.G. Kiiamov
    Ceramics International, 2024
  • Optical study of Er3+ and Nd3+/Yb3+-doped CeO2 and CeO2/CeF3 nanoparticles
    A.K. Ginkel, R.M. Rakhmatullin, O.A. Morozov, S. L. Korableva, V.V. Semashko, M.S. Pudovkin
    2024 International Conference Laser Optics Iclo 2024 Proceedings, 2024
    In this work, we used a simple dry synthesis of composite nanostructures of $\\mathrm{CeO}_{2} / \\mathrm{CeF}_{3}$ doped with $\\mathbf{E r}^{3+}$ or $\\mathbf{N d}^{3+} / \\mathbf{Y b}^{3+}$ using ammonium bifluoride $\\left(\\mathrm{NH}_{4} \\mathrm{HF}_{2}\\right)$ and annealing in air, respectively. This synthesis procedure makes it possible to obtain double-phase samples with different ratios of $\\mathrm{CeO}_{2}\\left(\\mathrm{Ce}^{4+}\\right)$ and $\\mathrm{CeF}_{3}\\left(\\mathrm{Ce}^{3+}\\right)$. As for the structure of $\\mathrm{CeO}_{2} / \\mathrm{CeF}_{3}: \\mathbf{E r}^{3+}(\\mathbf{0}.1$ at.%), the luminescence intensity of $\\mathbf{C e}^{3+}$ and $\\mathbf{E r}^{3+}$ ions increases 3.5 times after the fluorination procedure both with UV and resonance pumping, which indicates an increase in the concentration of $\\mathrm{Ce}^{3+}$ and $\\mathrm{Er}^{3+}$. In the $\\mathrm{CeF}_{3}: \\mathrm{Nd}^{3+}$ ($0.1 \\mathrm{at}. \\%$), $\\mathbf{Y b}^{3+}$ (0.5 at. $\\%$) nanoparticles, under $\\mathrm{Nd}^{3+}$ excitation $\\mathbf{Y b}^{3+}$ emission is not observed. However, after formation of double-phase $\\mathrm{CeO}_{2} /$ CeF3: $\\mathbf{N d}^{3+} / \\mathbf{Y b}^{3+}$ samples, both $\\mathbf{N d}^{3+}$ and $\\mathbf{Y b}^{3+}$ emissions are observed.
  • The optical and magnetic properties of CeO2 nanoparticles doped with Er3+ ions†
    , M.S. Pudovkin, O.A. Morozov, , S.L. Korableva, , R.M. Rakhmatullin, , V.V. Semashko, , A.K. Ginkel, , A.A. Rodionov, , A.G. Kiiamov, and
    Magnetic Resonance in Solids, 2024
  • Optical Temperature Sensors Based on Down-Conversion Nd3+,Yb3+:LiYF4 Microparticles
    Anna Ginkel, Maksim Pudovkin, Ekaterina Oleynikova, Slella Korableva, Oleg Morozov
    Photonics, 2023
    Nd3+ (0.3 mol.%), Yb3+ (0, 1, 2, 3 and 5 mol.%): LiYF4 phosphors were grown by the Bridgman–Stockbarger technique. The luminescence intensity ratio (LIR) of Nd3+ (4F3/2–4I9/2, ~866 nm) and Yb3+ emission (2F5/2–2F7/2, ~980 nm) was taken as a parameter. The energy exchange between 4F3/2 (Nd3+) and 2F5/2 (Yb3+) occurs via phonons, which elucidates the LIR temperature dependence. The influence of the cross-relaxation process on the temperature sensitivity was estimated as negligible. The LIR function depends on the Yb3+ concentration at a fixed 0.3 mol.% Nd3+. The maximum Sa and Sr value were reached for Nd3+ (0.3%), Yb3+ (1.0%): LiYF4 (Sa = 0.007 K−1 at 320 K) and Nd3+ (0.3%), Yb3+ (5.0%): LiYF4 (Sr = 1, 1.03%*K−1 at 260 K), respectively.
  • Down-conversion based Tm3+:LiY1-XYbXF4 temperature sensors
    A.R. Khadiev, S.L. Korableva, A.K. Ginkel, O.A. Morozov, A.S. Nizamutdinov, V.V. Semashko, M.S. Pudovkin
    Optical Materials, 2022
  • Highly-sensitive lifetime optical thermometers based on Nd3+, Yb3+:YF3 phosphors
    M.S. Pudovkin, A.K. Ginkel, O.A. Morozov, A.G. Kiiamov, M.D. Kuznetsov
    Journal of Luminescence, 2022
  • Down-conversion LiYF4:Tm3+, Yb3+phosphors for optical temperature sensing
    A.K. Ginkel, A. R. Khadiev, E.O. Volkova, O.A. Morozov, S.L. Korableva, M.S. Pudovkin
    2022 International Conference Laser Optics Iclo 2022 Proceedingss, 2022
  • Temperature sensitivity of Nd3+, Yb3+:YF3 ratiometric luminescent thermometers at different Yb3+ concentration
    M.S. Pudovkin, A.K. Ginkel, E.V. Lukinova
    Optical Materials, 2021