Перегляд за автором "Maksimchuk, P.O."

Результати 1-12 з 12

Abnormal enhancement of light output by cation mixing in ZnxMg₁₋ₓWO₄ nanocrystals

Tupitsyna, I.A.; Maksimchuk, P.O.; Yakubovskaya, A.G.; Dubovik, A.M.; Seminko, V.V.; Zvereva, V.S.; Trubaeva, O.G.; Hubenko, K.O.; Vovk, O.M.; Malyukin, Y.V. (Functional Materials, 2017)

In the paper the effect of light output increase with maximum at x = 0.5 observed previously for the mixed ZnxMg₁₋ₓWO₄ crystals is demonstrated for nanocrystals with the same composition. The enhancement of light output ...
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence

Kononets, N.V.; Seminko, V.V.; Maksimchuk, P.O.; Bespalova, I.I.; Klochkov, V.K.; Malyukin, Yu.V. (Физика низких температур, 2018)

Peculiarities of electronic excitation energy migration in phosphate nanocrystals with three-dimensional (EuPO₄) and one-dimensional (EuP₃O₉) arrangement of regular ions under variation of concentration of both energy traps ...
Energy transport in EuAl₂.₀₇(B₄O₁₀)O₀.₆ nanocrystals with two-dimensional Eu³⁺ sublattice

Kononets, N.V.; Seminko, V.V.; Maksimchuk, P.O.; Bespalova, I.I.; Malyukin, Yu.V.; Grynyov, B.V. (Functional Materials, 2017)

Energy transport processes in EuAl₂.₀₇(B₄O₁₀)O₀.₆ nanocrystals with two-dimensional arrangement of Eu³⁺ subsystem were investigated using the methods of stationary and time-resolved spectroscopy. Sufficient difference in ...
Features of energy transport in EuMgB₅O₁₀ and EuP₃O₉ quasi-one-dimensional lattices

Kononets, N.V.; Seminko, V.V.; Maksimchuk, P.O.; Bespalova, I.I.; Masalov, A.A.; Malyukin, Yu.V. (Functional Materials, 2014)

Processes of excitation energy migration in EuMgB₅O₁₀ and EuP₃O₉ quasi-one-dimensional matrices have been investigated by means of steady-state and time-resolved luminescence spectroscopy. It was shown that the patterns ...
Formation of oxygen vacancies in ceria-zirconia nanocrystals studied by spectroscopic techniques

Okrushko, E.N.; Seminko, V.V.; Maksimchuk, P.O.; Bespalova, I.I.; Malyukin, Yu.V. (Functional Materials, 2018)

Incorporation of doped ions with different ionic radius (like Zr⁴⁺) or valence state (like Eu³⁺) into CeO₂ structure leads to sufficient modification of the processes of oxygen transport due to formation of additional ...
Influence of CeO₂ nanocrystals size on the vacancies formation processes determined by spectroscopic techniques

Maksimchuk, P.O.; Seminko, V.V.; Bespalova, I.I.; Masalov, A.A. (Functional Materials, 2014)

In the paper influence of the size on the processes of oxygen vacancies formation in CeO₂ nanocrystals has been investigated. Changes in concentration of oxygen vacancies were determined by two independent indicators: ...
Obtaining of ZnSe nanocrystals from ZnSe bulk crystals by mechanical milling and chemical vapor deposition in silica matrices

Voloshina, L.I.; Seminko, V.V.; Bespalova, I.I.; Maksimchuk, P.O.; Viagin, O.G.; Masalov, A.A. (Functional Materials, 2017)

In the paper ZnSe nanocrystals were obtained from bulk ZnSe crystal using two different methods: mechanical milling and heating of bulk crystal with subsequent deposition of zinc and selenium in the pores of silica matrix. ...
Processes of excitation energy transport in EuPO₄ and EuP₃O₉ nanocrystals

Kononets, N.V.; Seminko, V.V.; Maksimchuk, P.O.; Aslanov, A.V.; Bespalova, I.I.; Masalov, A.A.; Malyukin, Y.V. (Физика низких температур, 2017)

Processes of excitation energy transport were investigated for EuPO₄ and EuP₃O₉ nanocrystals, in which Eu³⁺ ions form three- and one-dimensional subsystems, respectively. It was determined that for EuPO₄ nanocrystals ⁵D₀ ...
Role of shallow electronic traps formed by oxygen vacancies in formation of luminescent properties of CeO₂₋x nanocrystals

Maksimchuk, P.O.; Seminko, V.V.; Bespalova, I.I.; Masalov, A.A. (Functional Materials, 2014)

In the paper methods of thermoluminescence (TSL) and time-resolved spectroscopy were used for investigation of shallow electron traps near edge of 4f⁰ band in CeO₂ and nonstoichiometric CeO₂₋x nanocrystals. It was shown ...
Spectroscopically detected segregation of Pr³⁺ ions in YPO₄:Pr³⁺ nanocrystals

Seminko, V.V.; Maksimchuk, P.O.; Kononets, N.V.; Masalov, A.A.; Boyko, Yu.I.; Malyukin, Yu.V. (Functional Materials, 2012)

Segregation of Pr³⁺ ions in YPO₄:Pr³⁺nanocrystals was revealed by means of spectroscopic techniques. Increase of doped ions concentration in the near-surface layer of YPO₄:Pr³⁺ nanocrystals was confirmed by modification ...
Structural rearrangement and change of cerium valence in cerium dioxide (CeO₂) nanocrystals

Boyko, Yu.I.; Seminko, V.V.; Maksimchuk, P.O.; Malyukin, Yu.V. (Functional Materials, 2016)

For CeO₂ nanocrystals a large number of cerium ions undergo Ce⁴⁺→ Ce³⁺ transition leading to formation of oxygen-deficient CeO₂₋x phase in the subsurface layer of nanocrystal. Such structural rearrangement leads to density ...
X-ray and photo-excited luminescence of ZnWO₄ nanoparticles with different size and morphology

Tupitsyna, I.A.; Maksimchuk, P.O.; Yakubovskaya, A.G.; Malyukin, Y.V.; Zvereva, V.S.; Vovk, O.M. (Functional Materials, 2016)

X-ray and photoluminescence of ZnWO₄ nanocrystals with controlled size and morphology: grains with diameter of 10-20 nm; rods with diameter of 10-20 nm and length of 200-250 nm produced by microwave hydrothermal method ...

Результати 1-12 з 12

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Перегляд за автором "Maksimchuk, P.O."

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