Перегляд за автором "Bespalova, I.I."

Результати 1-16 з 16

Cyanine dye excimer formation in nanoporou SiO₂ matrices

Gnap, B.A.; Bespalova, I.I.; Yefimova, S.L.; Sorokin, A.V. (Functional Materials, 2013)

Novel red-shifted band has been observed in luminescence spectra of a cyanine dye embedded into nanoporous SiO₂ matrix. That band is concentration dependent and disappears at cooling to low temperature. It has been ...
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 ...
Features of J-aggregates formation in pores of nanostructured anodic aluminum oxide

Sorokin, A.V.; Voloshko, A.V.; Fylymonova, I.I.; Bespalova, I.I.; Yefimova, S.L. (Functional Materials, 2014)

Features of J-aggregates formation in highly structured pores of anodic aluminum oxide (AAO) have been studied using steady-state absorption and luminescence spectroscopy and time-resolved luminescence spectroscopy. ...
Fluorescence of cyanine dye excimers in nanoporous silica

Sorokin, A.V.; Gnap, B.A.; Bespalova, I.I.; Yefimova, S.L. (Functional Materials, 2015)

Adsorption of cyanine dye DiI in a nanopous SiO₂ matrix has been studied. It was shown that the increase of the dye concentration in the SiO₂ matrix provokes the appearance of an additional red-shifted band of excimer ...
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 ...
FRET between cyanine dyes in nanopores of bulk sol-gel silica matrix

Gnap, B.A.; Bespalova, I.I.; Yefimova, S.L.; Sorokin, A.V. (Functional Materials, 2011)
GdVO₄:Eu³⁺ nanoparticles - embedded CaCO₃ microspheres: synthesis and characterization

Bespalova, I.I.; Yefimova, S.L.; Tkacheva, T.N.; Hubenko, K.A.; Sorokin, A.V.; Mateychenko, P.V. (Functional Materials, 2017)

In present study, we report on synthesis of fluorescent GdVO₄:Eu³⁺ nanoparticle-embedded CaCO₃ microparticles (CaCO₃@GdVO₄:Eu³⁺) and their characterization. Synthesized CaCO₃@GdVO₄:Eu³⁺ microspheres are of vaterite polymorph ...
Highly-ordered nanoporous anodic aluminum oxide films

Voloshko, A.V.; Danilina, V.V.; Mateychenko, P.V.; Bespalova, I.I. (Functional Materials, 2012)

The samples of the nanostructured aluminum oxide films were obtained by anodic oxidation method (thickness is near 100 μm and dpores = 42+4 nm). Two stage aluminum oxidation was carried out in a two electrode electrochemical ...
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 ...
Synthesis of luminescent Gd₂SiO₅:Ce³⁺ films by sol-gel method

Masalov, A.A.; Viagin, O.G.; Danilina, V.V.; Bespalova, I.I. (Functional Materials, 2011)
Using cyanine dye J-aggregates as luminescence probe for nanostructured media

Sorokin, A.V.; Ropakova, I.Yu.; Borovoy, I.A.; Bespalova, I.I.; Yefimova, S.L. (Functional Materials, 2017)

Due to excitonic nature of electronic excitations in J-aggregates causing the unique spectral properties they successfully applied as luminescent probes in biology. In present report we demonstrate a possibility using ...

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Перегляд за автором "Bespalova, I.I."

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