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    International workshop on actual problems of condensed matter physics : Program. Book of abstracts / Fed. Res. Center KSC SB RAS, Kirensky Inst. of phys., Sib. Fed. Univ. ; предс. прогр. ком. S. G. Ovchinnikov. - Krasnoyarsk : [s. n.], 2017. - 30 p.
    Содержание:
Bondarev, I. A. Magnetic and transport properties of the epitaxial Fe3Si film on a Si substrate / I. A. Bondarev. - P .25
Yakovlev, I. A. The magnetic anisotropy of the Fe and Fe(1-x)Si(x) thin films depend on / I. A. Yakovlev [и др.]. - P .12
Другие авторы: Belyaev B. A., Rautskii M. V., Tarasov, I. A., Varnakov S. N, Ovchinnikov, S. G.
Popkov, S. I. Inverted opals as the Josephson networks of weak links : Invited / S. I. Popkov [и др.]. - P .24
Другие авторы: Gokhfeld D. M., Bykov A., Mistonov A., Shabanov A., Terentiev K.
Nikolaev, S. Electronic structure and Fermi surface within the cluster perturbation theory in X-operators representation : Invited / S. Nikolaev, V. I. Kuz'min, S. G. Ovchinnikov. - P .27
Fedorov, A. S. DFT investigation of electronic and optical magnetic properties of one dimensional transition metal halide structuresTmHaI3 : Invited / A. S. Fedorov [и др.]. - P .20
Другие авторы: Kuzubov A. A., Kovaleva E. A., Popova M. I., Kholtobina A. S., Mikhaleva N. S., Visotin M. A.
Ovchinnikov, S. G. Effect of interatomic exchange interaction on spin crossover and Mott-Hubbard transition under high pressure and the physical properties of the low Earth’s mantle : Invited / S. G. Ovchinnikov [и др.]. - P .26
Другие авторы: Orlov Yu. S., Nikolaev S., Nesterov A., Ovchinnikova T.
Tarasov, I. A. Extremely high magnetic-field sensitivity of charge transport in the Mn/SiO2/p-Si hybrid structure / I. A. Tarasov [и др.]. - P .21
Другие авторы: Smolyakov D. A., Rautskii M. V., Lukyanenko A. V., Yakovlev I. A., Ovchinnikov S. G., Volkov N. V.
Volkov, N. V. Marnetic-field sensitivity of charge transport in silicon-based hybrid structures : Invited / N. V. Volkov [et al.]. - P .10
Другие авторы: Tarasov A. S., Rautskii M. V., Lukyanenko A. V., Varnakov S. N., Bondarev I. A., Ovchinnikov S. G.
Lukyanenko, A. V. Fabrication of multi-terminal planar devices based on epitaxial Fe1-xSix films grown on Si(111) / A. V. Lukyanenko, A. S. Tarasov, I. A. Tarasov [et al.] ; A. V. Luyanenko [и др.]. - P .28
Другие авторы: Tarasov A. S., Tarasov I. A., Bondarev I. A., Smolyarova T. E., Yakovlev I. A., Volochaev M. N., Varnakov S. N., Ovchinnikov S. G., Volkov N. V.
Rautskii, M. V. Magnetic field-driven lateral photovoltaic effect in the Fe/SiO2/p-Si hibrid structure with the Scottky barrier / M. V. Rautskii [и др.]. - P .29
Другие авторы: Tarasov A. S., Varnakov S. N., Bondarev I. A., Volochaev M. N., Lukyanenko A. V., Volkov N. V.
Moryachkov, R. Small angle X-ray scattering and atomic structure of aptamer biomolecules / R. Moryachkov [и др.]. - P .14-15
Другие авторы: Tomilin F. N., Shchugoreva I., Spiridonova V., Peters G., Zabluda V.
Tarasov, I. A. Iron silicides and pure iron epitaxial and highly-textured nanostructures on silicon: growth and their physical properties : Invited / I. A. Tarasov [и др.]. - P .23
Другие авторы: Visotin M. A., Solovyov L. A., Rautskii M. V., Zhandun, V. S., Nemtsev I. V., Yakovlev I. A., Varnakov S. N, Ovchinnikov, S. G.
Sokolov, A. E. Magnetic nanoparticles and DNA-aptamers conjugates for diagnostics and therapy of cancer : Invited / A. E. Sokolov [и др.]. - P .13
Другие авторы: Zamay S., Zamay T., Svetlichnyi V., Velikanov D.
Sandalov, I. S. The microscopic origin of ferromagnetism in Fe silicides : Invited / I. S. Sandalov [и др.]. - P .16
Другие авторы: Zamkova N. G., Zhandun V. S., Ovchinnikov, S. G.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Ovchinnikov, S. G. \предс. прогр. ком.\; Овчинников, Сергей Геннадьевич; Lukyanenko, A. V.; Varnakov, S. N.; Bondarev, I. A.; Ovchinnikov, S. G.; Tarasov, I. A.; Svetlichnyi, V.; Velikanov, D. A.; Spiridonova, V.; Peters, G.; Zabluda, V. N.; Popova, M. I.; Kholtobina, A. S.; Mikhaleva, N. S.; Visotin, M. A.; Yakovlev, I. A.; Volkov, N. V.; Rautskii, M. V.; Zhandun, V. S.; Nemtsev, I. V.; Varnakov, S. N; Mistonov, A.; Shabanov, A. V.; Terentiev, K. Yu.; Nesterov, A.; Ovchinnikova, T.; Smolyarova, T. E.; Volochaev, M. N.; Federal Research Center KSC SB RAS; Kirensky Institute of Physics; Siberian Federal Univercity; International Workshop on Actual Problems of Condensed Matter Physics (27 Mar. - 1 Apr. 2017 ; Krasnoyarsk / Cheremushki)
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Electro-optical response of a monolayer polymer dispersed nematic liquid crystal film doped with surfactant / V. A. Loiko, A. V. Konkolovich, A. A. Miskevich [et al.] // Liquid Crystal Polymer Nanocomposites : Woodhead Publishing, 2022. - Chapter 7. - P. 163-211, DOI 10.1016/B978-0-12-822128-0.00006-6. - Cited References: 86
Кл.слова (ненормированные):
Polymer dispersed liquid crystal film -- Liquid crystal droplet -- Transmission -- Angular distribution of scattered light -- Quenching effect -- Symmetry breaking effect -- Photonic band gap
Аннотация: Light scattering and transmission by a monolayer polymer dispersed liquid crystal film containing liquid crystal droplets with inhomogeneous anchoring of liquid crystal molecules at the polymer-droplet interface is considered theoretically and experimentally. The developed optical model is based on the anomalous diffraction and interference approximations of the theory of scattering of waves. It is applied to describe the interference quenching effect for the coherently transmitted light and electrically controllable symmetry breaking effect in small-angle structure of light scattered by film containing droplets with inhomogeneous anchoring. The analysis of transmittance and reflectance of the one-dimensional photonic crystals composed of monolayers is carried out. The formation of the photonic band gaps is analyzed.

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Держатели документа:
Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus
Kirensky Institute of Physics, Federal Research Center-Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Military Academy of the Republic of Belarus, Belarus

Доп.точки доступа:
Loiko, V. A.; Konkolovich, A. V.; Miskevich, A. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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    Soft photonic crystals and metamaterials / ed., pref.: I. V. Timofeev, W. Lee, Special issue of the "Materials" (ISSN 1996-1944) 2022, 15(22), 8096. - Bazel[etc.] : MDPI, 2022. - VII, 127 p. - ISBN 978-3-0365-6074-8. - ISBN 978-3-0365-6073-1 : Б. ц.
Перевод заглавия: Мягкие фотонные кристаллы и метаматериалы
Публикация в журнале . - [S. l. : s. n.]
. - [S. l. : s. n.]
. - [S. l. : s. n.]
. - [S. l. : s. n.]
    Содержание:
Timofeev, I. V. Special issue: Soft photonic crystals and metamaterials : Reprinted from: Materials 2022, 15, 8096, doi:10.3390/ma15228096 / I. V. Timofeev, W. Lee. - P .1-4. - Cited References: 10
Bikbaev, R. G. Double-resolved beam steering by metagrating-based Tamm plasmon polariton : Reprinted from: Materials 2022, 15, 6014, doi:10.3390/ma15176014 / R. G. Bikbaev, D. N. Maksimov, K. - P. Chen, I. V. Timofeev. - P .89-95
Другие авторы: Maksimov D. N., Chen K. - P., Timofeev I. V.
Avdeeva, A. Yu. Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror : Reprinted from: Materials 2020, 13, 3255, doi:10.3390/ma13153255 / A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.]. - P .109-118. - Cited References: 44
Другие авторы: Vetrov S. Ya., Bikbaev R. G., Pyatnov M. V., Rudakova N. V., Timofeev I.V.
Lin, M. -Y. Chiral-selective Tamm plasmon polaritons : Reprinted from: Materials 2021, 14, 2788, doi:10.3390/ma14112788 / M. -Y. Lin, W. -H. Xu, R. G. Bikbaev [et al.]. - P .119-127. - Cited References: 46
Другие авторы: Xu W. -H., Bikbaev R. G., Yang J.-H., Li C. -R.
   Перевод заглавия: Мягкие фотонные кристаллы и метаматериалы

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Публикация в журнале Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror [Текст] / A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.] // Materials. - 2020. - Vol. 13 Is. 15.- Ст.3255

Chiral-selective Tamm plasmon polaritons [Текст] / M.-Y. Lin, W.-H. Xu, R. G. Bikbaev [et al.] // Materials. - 2021. - Vol. 14 Is. 11.- Ст.2788

Double-resolved beam steering by metagrating-based Tamm plasmon polariton [Текст] / R. G. Bikbaev, D. N. Maksimov, K.-P. Chen, I. V. Timofeev // Materials. - 2022. - Vol. 15 Is. 17.- Ст.6014

Timofeev I. V. Special issue: Soft photonic crystals and metamaterials [Текст] / I. V. Timofeev, W. Lee // Materials. - 2022. - Vol. 15 Is. 22.- Ст.8096

Держатели документа:
Kirensky Institute of Physics FRC KSC SB RAS
Siberian Federal University
National Yang Ming Chiao Tung University Tainan Taiwan

Доп.точки доступа:
Timofeev, I. V. \ed., pref.\; Тимофеев, Иван Владимирович; Lee, Wei \ed., pref.\; Timofeev, I. V.; Pyatnov, M. V.; Rudakova, N. V.; Yang, J. -H.; Li, C. -R.
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    Nonlinear optical properties of organic dye vapors [Preprint] : preprint. № 701Ф / S. V. Karpov, S. A. Myslivets, A. K. Popov, V. V. Slabko. - Красноярск : ИФ СО АН СССР, 1991. - 41 p. - Cited References. - 70 экз.
Перевод заглавия: Нелинейные оптические свойства органических красящих паров
   Перевод заглавия: Нелинейные оптические свойства органических красящих паров

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Popov, A. K.; Попов, Александр Кузьмич; Slabko, V. V.; Слабко, Виталий Васильевич; Академия наук СССР; Сибирское отделение АН СССР; Институт физики им. Л.В. Киренского Сибирского отделения АН СССР
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   В37
   M17


    Magnetic and magneto-optical properties of the Pr0.8Sr0.2MnO3 and Pr0.6Sr0.4MnO3 thin films [Preprint] : препринт. 854Ф / Yu. Greben'kova [et al.]. - Krasnoyarsk, 2014. - 16 p. - Bibliogr. - 40 экз. -

ГРНТИ

29.19.16

29.19.37

29.31.21

Рубрики:
Тонкие пленки--Свойства магнитные
Тонкие пленки--Свойства оптические

Доп.точки доступа:
Greben'kova, Yu.; Гребенькова, Юлия Эрнестовна; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Stepanova, E.; Chichkov, V. I.; Andreev, N. V.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Национальный исследовательский технологический университет "МИСИС"; Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина
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Optical properties of the HoGa3(BO3)4 crystal: experiment and ab initio calculation / S. N. Krylova, A. S. Aleksandrovsky, E. M. Roginskii [et al.] // Ferroelectrics. - 2020. - Vol. 559, Is. 1. - P. 135-140, DOI 10.1080/00150193.2020.1722015. - Cited References: 22. - This work was supported by the Russian Foundation for Basic Research (grant No 18-02-00754) . - ISSN 0015-0193
Кл.слова (ненормированные):
HoGa3(BO3)4 -- ab initio calculation -- absorption spectrum -- band structure
Аннотация: Single crystal of HoGa3(BO3)4 has been grown using solution-melt synthesis. The optical band gap determined from the measured absorption spectrum is due to direct allowed transition and equals to 4.14 eV. The optical properties of this crystal are calculated by the plane-wave pseudo-potential method based on density functional theory. The structure of the crystal has been optimized. The electronic structure of HoGa3(BO3)4 is calculated. The experimental and theoretical fundamental absorption spectra are compared. The calculated bandgap is in good agreement with the experimental data.

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Держатели документа:
Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Ioffe Institute, St. Petersburg, Russian Federation
St. Petersburg State University, St. Petersburg, Russian Federation
Moscow Institute of Physics and Technology, Dolgoprudny, Russian Federation

Доп.точки доступа:
Krylova, S. N.; Крылова, Светлана Николаевна; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Roginskii, E. M.; Krylov, A. A.; Gudim, I. A.; Гудим, Ирина Анатольевна; Vtyurin, A. N.; Втюрин, Александр Николаевич
}
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Catalyzed M–C coupling reactions in the synthesis of σ-(pyridylethynyl)dicarbonylcyclopentadienyliron complexes / V. V. Verpekin, O. V. Semeikin, A. D. Vasiliev [et al.] // RSC Adv. - 2020. - Vol. 10, Is. 29. - P. 17014-17025, DOI 10.1039/d0ra02333g. - Cited References: 86. - This research was funded by a grant from the Russian Science Foundation (project No. 18-73-00150). . - ISSN 2046-2069

РУБ Chemistry, Multidisciplinary
Рубрики:
NONLINEAR-OPTICAL PROPERTIES
METAL ALKYNYL COMPLEXES
CARBON BOND FORMATION
Аннотация: The reactions between terminal ethynylpyridines, (trimethylsilyl)ethynylpyridines and cyclopentadienyliron dicarbonyl iodide were studied under Pd/Cu-catalyzed conditions to develop a synthetic approach to the σ-alkynyl iron complexes Cp(CO)2Fe–C≡C–R (R = ortho-, meta-, para-pyridyl). Depending on the catalyst and reagents used, the yields of the desired σ-pyridylethynyl complexes varied from 40 to 95%. In some cases the reactions with ortho-ethynylpyridine gave as byproduct the unexpected binuclear FePd μ-pyridylvinylidene complex [Cp(CO)Fe{μ2-η1(Cα):η1(Cα)-κ1(N)-Cα=Cβ(H)(o-C5H4N)}(μ-CO)PdI]. The conditions, catalysts, and reagents that provide the highest yields of the desired σ-pyridylethynyl iron compounds were determined. The methods developed allowed the synthesis of the corresponding σ-4-benzothiadiazolylethynyl complex Cp(CO)2Fe–C≡C–(4-C6H3N2S) as well. Eventually, synthetic approaches to σ-alkynyl iron complexes of the type Cp(CO)2Fe–C≡C–R (R = ortho-, meta-, para-pyridyl, 4-benzothiadiazol-2,1,3-yl) based on the Pd/Cu-catalyzed cross-coupling reactions were elaborated.

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Res Ctr, Siberian Branch, Inst Chem & Chem Technol, Akademgorodok 50-24, Krasnoyarsk 660036, Russia.
Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, Ul Vavilova 28, Moscow 119991, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Res Ctr, Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sobodny Prospect 79, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Verpekin, Victor V.; Semeikin, Oleg, V; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Kondrasenko, Alexander A.; Belousov, Yu. A.; Ustynyuk, Nikolai A.; Russian Science FoundationRussian Science Foundation (RSF) [18-73-00150]
}
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Gardymova, Anna P..
Optical textures and orientational structures in cholesteric droplets with conical boundary conditions / A. P. Gardymova, M. N. Krakhalev, V. Y. Zyryanov // Molecules. - 2020. - Vol. 25, Is. 7. - Ст. 1740, DOI 10.3390/molecules25071740. - Cited References: 53. - The authors are grateful for the financial support by the Russian Science Foundation (grant No. 18-72-10036). . - ISSN 1420-3049

РУБ Biochemistry & Molecular Biology + Chemistry, Multidisciplinary
Рубрики:
DISPERSED LIQUID-CRYSTALS
CHIRAL NEMATIC DROPLETS
IONIC MODIFICATION
Кл.слова (ненормированные):
cholesteric liquid crystal -- droplet -- optical texture -- orientational structure -- conical surface anchoring -- topological defect
Аннотация: Cholesteric droplets dispersed in polymer with conical boundary conditions have been studied. The director configurations are identified by the polarising microscopy technique. The axisymmetric twisted axial-bipolar configuration with the surface circular defect at the droplet’s equator is formed at the relative chirality parameter N0≤2.9 . The intermediate director configuration with the deformed circular defect is realised at 2.9
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Держатели документа:
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Science FoundationRussian Science Foundation (RSF) [18-72-10036]
}
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    Effect of composition on the optical and photocatalytic properties of visible light responsive materials Bi26-xMgxO40 / D. S. Shtarev, R. Kevorkyants, M. S. Molokeev, A. V. Shtareva // Inorg. Chem. - 2020. - Vol. 59, Is. 12. - P. 8173-8183, DOI 10.1021/acs.inorgchem.0c00486. - Cited References: 41. - This study was supported by a grant from the Russian Science Foundation (Project No 19-73-10013). The authors acknowledge the help of the Yu. A. Kosygin Institute of Tectonics and Geophysics FEB RAS in conducting the study and offering their research equipment. The authors also thank the Research Center on Nanophotonics, the Center for Physical Methods of Surface Investigation (Dr. Alexandra Koroleva), and the Computing Centre of the Saint-Petersburg State University. R.K. acknowledges financial support from a grant from the Saint-Petersburg State University (Pure ID 39054581) . - ISSN 0020-1669
   Перевод заглавия: Влияние состава на оптические и фотокаталитические свойства новых материалов Bi26-xMgxO40, реагирующих на видимый свет
Аннотация: We report the synthesis and the crystal and electronic structure as well as the optical and photocatalytic properties of novel photoactive materials of the general formula Bi26–xMgxO40. Two compounds with compositions of Bi24.28(3)Mg1.72(3)O40 and Bi24.05(3)Mg1.95(3)O40 are synthesized using the pyrolytic method. According to X-ray diffraction analysis, the materials are monocrystalline species. Their electronic bandgaps determined from Tauc plots are 2.41 eV [Bi24.28(3)Mg1.72(3)O40] and 2.69 eV [Bi24.05(3)Mg1.95(3)O40]. Keeping in mind that optical bandgaps are typically larger than their electronic counterparts, we find that the bismuthate bandgaps match well that of Bi24Mg2O40 (2.26 eV) predicted by density functional theory. Apparently, the synthesized bismuthates are indirect bandgap semiconductors just like Bi24Mg2O40. Both materials demonstrate nearly identical luminescence spectra. Their luminescence emission at 620 nm is most efficiently excited by 365 nm light. The materials’ photocatalytic properties are evaluated in a visible light-induced photocatalytic phenol degradation reaction. Rather low activity of both compounds is detected. However, Bi24.05(3)Mg1.95(3)O40 is ∼2 times more photocatalytically active than Bi24.28(3)Mg1.72(3)O40, which is associated with a higher Bi5+ content in the former.

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Держатели документа:
Yu. A. Kosygin Institute of Tectonics and Geophysics FEB RAS, Khabarovsk, 680000, Russian Federation
Saint-Petersburg State University, Laboratory Photoactive Nanocomposite Materials, St Petersburg, 199034, Russian Federation
Far Eastern State Transport University, Khabarovsk, 680000, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Shtarev, D. S.; Kevorkyants, R.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Shtareva, A. V.
}
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10.

    Vetrov, S. Ya.
    Localized modes in chiral photonic structures / S. Y. Vetrov, I. V. Timofeev, V. F. Shabanov // Phys. Usp. - 2020. - Vol. 63, Is. 1. - P. 33-56, DOI 10.3367/UFNe.2018.11.038490. - Cited References: 251 . - ISSN 1063-7869. - ISSN 1468-4780
Рубрики:
CHOLESTERIC LIQUID-CRYSTAL
   CONTROLLED LIGHT-SCATTERING
   SCULPTURED THIN-FILMS
Кл.слова (ненормированные):
light localization -- photonic crystals -- chirality -- chiral nematic liquid crystal -- Pancharatnam-Berry geometric phase -- avoided crossing of coupled modes -- cholesteric liquid crystal -- optical Tamm states -- nanocomposite -- resonant frequency dispersion -- hybrid modes
Аннотация: We discuss chiral structures in self-organizing, artificial, and biological materials. A review of experimental studies and recent advances in the localization of light in chiral structures is given. The behavior of polarized resonant modes in such structures is examined using the example of a one-dimensional photonic crystal containing liquid crystal materials. The anomalous spectral shifts of transmission peaks are interpreted as the contribution of the geometric phase caused by the twisting of the layers of the liquid crystal. The optical Tamm state localized at the boundary between chiral and nonchiral mirrors in the form of a cholesteric layer and a polarization-preserving anisotropic mirror is analytically and numerically described. Considerable attention is paid to the presentation of the properties of localized optical modes in the cholesteric with a resonant metal-dielectric nanocomposite. New possibilities for controlling the properties of the photonic structure are noted, due to the combination of the dispersion of the resonant medium and the intrinsic dispersion of the cholesteric. Attention is focused on controlled hybrid modes in the cholesteric structure formed by the coupling of localized modes. Possible applications and further ways of developing the concept of chiral photonic structures are deliberated.

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Публикация на русском языке Ветров, Степан Яковлевич. Локализованные моды в хиральных фотонных структурах [Текст] / С. Я. Ветров, И. В. Тимофеев, В. Ф. Шабанов // Успехи физ. наук. - 2020. - Т. 190 № 1. - С. 37-62

Держатели документа:
Russian Acad Sci, Siberian Branch, FRC KSC, Kirensky Inst Phys, Akademgorodok 50,Str 38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Pr Svobodnyi 79, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Shabanov, V. F.; Шабанов, Василий Филиппович; Ветров, Степан Яковлевич
}
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11.

Zhandun, V. S.
Ab Initio study of the relation between the structural, magnetic, and optical properties of normal and inverse MnGa2O4 spinels / V. S. Zhandun, A. V. Nemtsev // J. Exp. Theor. Phys. - 2020. - Vol. 130, Is. 3. - P. 418-422, DOI 10.1134/S106377612002017X. - Cited References: 20. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research project no. 18-42-243019: "First-principles studies of the polarization, magnetic, electronic, and magnetoelectric properties of functional compounds with a spinel structure containing 3d and 4f ions." . - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
STABILITY
Аннотация: The electronic, magnetic, and optical properties of MnGa2O4 in the structure of the normal and inverse spinels are subjected to an ab initio investigation and comparison. The generalized gradient approximation (GGA) predicts that the normal MnGa2O4 spinel is a semiconductor with a bandgap of about 0.7 eV, and a bandgap in the structure of the inverse spinel appears only in terms of the GGA + U approach. A simple exchange interaction model is used to calculate exchange integrals. In both structure types, MnGa2O4 exhibits antiferromagnetic behavior, and the normal structure is energetically favorable. The inverse spinel becomes energetically favorable only when a negative pressure is applied. The absorption spectra of the normal spinel are found to have a spectral window at a wavelength larger than 450 nm.

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Публикация на русском языке Жандун, Вячеслав Сергеевич. Исследование в рамках подхода ab initio взаимосвязи структурных, магнитных и оптических свойств нормальных и обратных шпинелей MnGa2O4 [Текст] / В. С. Жандун, А. В. Немцев // Журн. эксперим. и теор. физ. - 2020. - Т. 157 Вып. 3. - С. 498-503

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Немцев, Андрей В.; Nemtsev, A. V.; Жандун, Вячеслав Сергеевич; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory; Krasnoyarsk Regional Fund of Science [18-42-243019]
}
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12.

    Polar anchoring energy and tilt angle measured by magneto-optical technique in nematic doped with ionic surfactant / A. M. Parshin, V. S. Sutormin, V. Y. Zyryanov, V. F. Shabanov // Liq. Cryst. - 2020. - Vol. 47, Is. 12. - P. 1825-1831, DOI 10.1080/02678292.2020.1733683. - Cited References: 32 . - ISSN 0267-8292. - ISSN 1366-5855
   Перевод заглавия: Полярная энергия сцепления и угол наклона измеренные магнитооптической методикой в нематике допированном ионным сурфактантом

РУБ Chemistry, Multidisciplinary + Crystallography + Materials Science, Multidisciplinary
Рубрики:
LIQUID-CRYSTAL
   TEMPERATURE-DEPENDENCE
   INTERFACE
   ADSORPTION
Кл.слова (ненормированные):
Nematic -- ionic surfactant -- tilt angle -- anchoring energy -- magnetooptics
Аннотация: The surface anchoring of a nematic doped with the ionic surfactant has been investigated and compared with the one in the undoped sample. The director tilt angle at the substrates coated with the orienting polymer film has been determined by the null method in a rotating magnetic field. The Frederiks transition in a magnetic field has been chosen as a convenient technique to measure the polar anchoring energy Wθ. The temperature dependences of anchoring energy have been obtained for the various nematic cells. The Wθ values for nematic doped with the ionic surfactant are less than for the undoped one. The factors affecting the measurement accuracy have been discussed. The accuracy is higher for the thinner nematic layers and weaker anchoring energy.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Fed Res Ctr,Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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13.

    Аверьянов, Евгений Михайлович.
    Оптическая анизотропия и ориентационный порядок одноосных пленок сопряженных полимеров / Е. М. Аверьянов // Жидк. кристаллы и их практич. использ. - 2020. - Т. 20, № 1. - С. 53-63 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2020.1.53. - Библиогр.: 14 . - ISSN 1991-3966
   Перевод заглавия: Optical anisotropy and orientation order of uniaxial films of conjugated polymers
Кл.слова (ненормированные):
сопряженные полимеры -- P3ОT -- анизотропные полимерные пленки -- ориентационный порядок -- эффекты локального поля -- conjugated polymers -- P3OT -- anisotropic polymer films -- orientation order -- local-field effects
Аннотация: Для одноосной пленки сопряженного полимера с макромолекулами в виде наборов субъединиц разной длины установлена связь компонент e(1,2)j(w) диэлектрической функции ej(w) = e1j(w) + ie2j(w) с параметром ориентационного порядка s дипольных моментов молекулярных переходов, отвечающих изолированной полосе поглощения света c поляризацией вдоль (j = || ) и нормально (j =^ ) оптической оси пленки. Новые методы определения s реализованы для пленки полимера P3OT с плоскостной ориентацией субъединиц и известными зависимостями e(1,2)j(w) в областях прозрачности и низкочастотного электронного поглощения. Учтена анизотропия компонент fj(w) = 1 + Lj[ej(w) - 1] тензора локального поля. Экспериментальные значения компонент Lj тензора Лорентца для пленки P3OT определены с использованием зависимостей e1j(w) в видимой области прозрачности. Показано совместное влияние длины и ориентационного порядка субъединиц, а также динамических диполь-дипольных взаимодействий между субъединицами (эффектов локального поля) на положение максимумов полос e2j(w).
The uniaxial film of conjugated polymer with macromolecules as a set of subunits of different lengths was studied. For this film, the connection between the components e(1,2)j(w) of the dielectric function ej(w) = e1j(w) + ie2j(w) and the orientation order parameter s was established. The orientation order parameter s of the dipole moments of molecular transitions corresponds to an isolated absorption band of light with polarization along (j = ||) and across (j =^)the optical axis of the film. New methods have been implemented for determining s of the P3OT polymer film. The P3OT polymer film is characterized by a planar orientation of subunits and known dependences e(1,2)j(w) in the regions of transparency and low-frequency electron absorption. The anisotropy of the components fj(w) = 1 + Lj[ej(w) - 1] of the local-field tensor was taken into account. The experimental values of the components Lj of the Lorentz tensor for the P3OT film were determined using the dependences e1j(w) in the visible transparency region. The combined effect of the length and orientation order of the subunits, as well as dynamic dipole-dipole interactions between subunits (local-field effects) on the position of the maxima of the e2j(w) bands was shown.

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Институт физики им. Л. В. Киренского, ФИЦ КНЦ СО РАН, Академгородок, д. 50, строение № 38, 660036 Красноярск, Россия

Доп.точки доступа:
Aver'yanov, E. M.

}
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14.

    Halogen substitution in zero-dimensional mixed metal halides toward photoluminescence modulation and enhanced quantum yield / M. Z. Li, Y. W. Li, M. S. Molokeev [et al.] // Adv. Opt. Mater. - 2020. - Vol. 8, Is. 16. - Ст. 2000418, DOI 10.1002/adom.202000418. - Cited References: 34. - M.L., Y.L. contributed equaly to this work. This work was supported by the National Natural Science Foundation of China (51961145101, 51972118, and 51722202), Fundamental Research Funds for the Central Universities (FRFTP-18-002C1), the Guangdong Provincial Science &Technology Project (2018A050506004), and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01 x 137). This work was also funded by RFBR according to the research project No. 19-52-80003. The work at Jilin University is supported by the National Natural Science Foundation of China (Grant No. 61722403 and 11674121) and Jilin Province Science and Technology Development Program (Grant No. 20190201016JC). Calculations were performed in part at the high performance computing center of Jilin University. . - ISSN 2195-1071
   Перевод заглавия: Замена галогена в смешанных галогенидах металлов с нулевой размерностью для модуляции фотолюминесценции и увеличения квантового выхода

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
WHITE-LIGHT EMISSION
PEROVSKITES
EXCITONS
Кл.слова (ненормированные):
halogen substitution -- hybrid metal halides -- photoluminescene quantum yield
Аннотация: Zero‐dimensional (0D) organic−inorganic hybrid metal halides haveunprecedented degrees of freedom for structural tunability and photoluminescence modulation. Here, the 0D isomorphic hybrid metal mixed halides (C9NH20)9Pb3Zn2Br19(1−x )Cl19x (x = 0–1) with continuous halogen contents control, exhibiting tunable emission and enhancement of photoluminescence quantum yield (PLQY) are reported. The competitive bromine to chlorine substitution process in (C9NH20)9Pb3Zn2Br19(1−x )Cl19x occurs first in [ZnBr4−x Clx ]2− tetrahedron before the [Pb3Br11−x Clx ]5− trimer. The increasing Cl content in samples from x = 0 to 1 results in an expected blue shift of emission peak from 565 to 516 nm, and meanwhile a strikingly room temperature PL quantum yield increase from 8% to 91%. Combined experimental characterizations and theoretical calculations indicate that the blue shift of interband transition energy is responsible for the emission peak shift. Moreover, with the increasing Cl content, the enhanced electron−phonon interaction and the weakened thermal‐assisted nonradiative recombination result in more efficient radiative transition channels and ultimately enhanced PLQY. The impact of halogen substitution on electronic structures and optical properties in 0D hybrid metal halides is emphasized in this work as a new strategy to promote the future development of new luminescent materials.

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Держатели документа:
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China.
Jilin Univ, Coll Mat Sci & Engn, Key Lab Automobile Mat MOE, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
South China Univ Technol, Inst Opt Commun Mat, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China.

Доп.точки доступа:
Li, Mingze; Li, Yawen; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhao, Jing; Na, Guangren; Zhang, Lijun; Xia, Zhiguo
}
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15.

    Luminescence of monoclinic Y2O3:Eu nanophosphor produced via laser vaporization / A. I. Kostyukov, V. N. Snytnikov, V. N. Snytnikov [et al.] // Opt. Mater. - 2020. - Vol. 104. - Ст. 109843, DOI 10.1016/j.optmat.2020.109843. - Cited References: 19. - This work is financially supported by the Russian Foundation for Basic Research № 19-32-60027 . - ISSN 0925-3467
   Перевод заглавия: Люминесценция моноклинного Y2O3:Eu нанолюминофора, полученного испарением лазером
Кл.слова (ненормированные):
Photoluminescence of Eu3+ -- Monoclinic Y2O3:Eu nanophosphor -- Laser vaporization
Аннотация: Europium doped Y2O3spherical nanoparticles with the diameter ~10 nmobtained via cw laser vaporization are shown to crystallize in monoclinic symmetry class (C2/m space group). The size of nanoparticles established via HRTEM coincides with coherent scattering region established by XRD. Luminescence spectrum in the vicinity of ultranarrow transition demonstrates three peaks consistent with three inequivalent positions of Eu3+ ion in monoclinic Y2O3 lattice. Hypersensitive transition dominates in the spectrum, admitting the lack of inversion symmetry at Cs sites occupied by Eu3+. The spectrum of hypersensitive transition is expanded to the red part of spectrum due intense transitions terminating at higher-lying components of crystal-field-split 7F2 energy level. Obtaining chromaticity coordinates (0.669, 0.331)and absolute quantum yield (~21%) is possible using red phosphor based on monoclinic Y2O3:Eu3+.

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Novosibirsk State University, Pirogova Str. 2, Novosibirsk, 630090, Russian Federation
Boreskov Institute of CatalysisSB RAS, Lavrentieva Ave. 5, Novosibirsk, 630090, Russian Federation
Nikolaev Institute of Inorganic Chemistry SB RAS, Akad. Lavrentiev Ave. 3, Novosibirsk, 630090, Russian Federation
Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation
Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Kostyukov, A. I.; Snytnikov, V. N.; Ishchenko, A. V.; Rakhmanova, M. I.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
}
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16.

High-resolution optical spectroscopy and modeling of spectral and magnetic properties of multiferroic ErFe3(BO3)4 / M. N. Popova, E. P. Chukalina, D. S. Erofeev [et al.] // Phys. Rev. B. - 2020. - Vol. 101, Is. 20. - Ст. 205108, DOI 10.1103/PhysRevB.101.205108. - Cited References: 38. - Financial support of the Russian Science Foundation under Grant No. 19-12-00413 is acknowledged. . - ISSN 2469-9950. - ISSN 2469-9969

РУБ Materials Science, Multidisciplinary + Physics, Applied + Physics, Condensed Matter
Рубрики:
F-F TRANSITIONS
   ENERGY-LEVELS
   ER3+ IONS
   GROWTH
Аннотация: We carried out the high-resolution broadband temperature-dependent polarized optical spectroscopy and theoretical studies of ErFe3(BO3)4 single crystals in the paramagnetic and antiferromagnetic (T˂TN=39K) phases. On the basis of the experimentally determined 45 crystal-field (CF) levels of Er3+ ions at sites with the C2 point symmetry, CF calculations were performed, a set of physically grounded CF parameters was obtained and used to model the temperature dependences of the Er magnetic moments measured in neutron-scattering experiments, as well as the magnetic susceptibility and magnetization of the compound; the contributions of the quasi-one-dimensional iron magnetic subsystem were calculated in the frame of the previously developed self-consistent four-particle cluster model. The modeling strongly supports an easy-plane collinear structure of iron magnetic moments and excludes earlier proposed additional magnetic phase.

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Держатели документа:
Russian Acad Sci, Inst Spect, Moscow 108840, Russia.
Natl Res Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Region, Russia.
LV Kirenskii Inst Phys, Siberian Branch RAS, Krasnoyarsk 660036, Russia.
Kazan Fed Univ, Kazan 420008, Russia.

Доп.точки доступа:
Popova, M. N.; Chukalina, E. P.; Erofeev, D. S.; Jablunovskis, A.; Gudim, I. A.; Гудим, Ирина Анатольевна; Malkin, B. Z.; Russian Science FoundationRussian Science Foundation (RSF) [19-12-00413]
}
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17.

    Enhanced cyan emission and optical tuning of Ca3Ga4O9:Bi3+ for high-quality full-spectrum white light-emitting diodes / D. J. Liu, X. H. Yun, G. G. Li [et al.] // Adv. Opt. Mater. - 2020. - Vol. 8, Is. 22. - Ст. 2001037, DOI 10.1002/adom.202001037. - Cited References: 55. - This work was financially supported by the National Natural Science Foundation of China (NSFC No. 51932009, 51720105015, 51672265, 51672266, 51672257 and 51672259), the Key Research Program of Frontier Sciences, CAS (Grant No. YZDY-SSW-JSC018), Science and Technology Cooperation Project between Chinese and Australian Governments (2017YFE0132300), the Jiangmen Innovative Research Team Program (2017), and the Major Program of Basic Research and Applied Research of Guangdong Province (2017KZDXM083) . - ISSN 2195-1071
   Перевод заглавия: Улучшенное голубое излучение и оптическая настройка Ca3Ga4O9:Bi3+ для получения высококачественных белых светодиодов полного спектра

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
ENERGY-TRANSFER
   TUNABLE LUMINESCENCE
   PHOSPHOR
   CRYSTAL
   MODULATION
Кл.слова (ненормированные):
cyan-emitting phosphors -- full-spectrum white lighting -- optical tuning -- single-phased white light-emitting diodes
Аннотация: Highly efficient cyan‐emitting phosphor materials are indispensable for closing the cyan gap in spectra of the traditional phosphor‐converted white light‐emitting diodes (WLEDs) to achieve high‐quality full‐spectrum white lighting. In this work, bright cyan‐emitting Ca3Ga4O9 (CGO):0.02Bi3+,0.07Zn2+ phosphor is developed to bridge the cyan gap. Such a Bi3+,Zn2+ codoping enhances the cyan emission of CGO:0.02Bi3+ by 4.1 times due to the influence of morphology and size of phosphor particles, charge compensation and lattice distortion. Interestingly, codoping La3+ ions into the current system can achieve a photoluminescence tuning of CGO:0.02Bi3+ from cyan to yellowish‐green by crystallographic site engineering. Besides, Bi3+–Eu3+ energy transfer is successfully realized in CGO:0.02Bi3+,0.07Zn2+,nEu3+ phosphors and the emission color tuning from cyan to orange is observed. The investigation of thermal quenching behaviors reveals that the incorporation of Zn2+ and La3+ improves the thermal stability of CGO:0.02Bi3+. Finally, CGO:0.02Bi3+,0.07Zn2+,0.10Eu3+ phosphor is employed to obtain a single‐phased warm WLED device. A full‐spectrum WLED device with remarkable color rendering index (Ra) of 97.4 and high luminous efficiency of 69.72 lm W−1 is generated by utilizing CGO:0.02Bi3+,0.07Zn2+ phosphor. This result suggests the important effect of CGO:0.02Bi3+,0.07Zn2+ phosphor on closing the cyan gap, providing new insights of cyan‐emitting phosphors applied in full‐spectrum white lighting.

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Держатели документа:
Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China.
Univ Sci & Technol China, Sch Appl Chem & Engn, Hefei 230026, Peoples R China.
China Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Peoples R China.
RAS, SB, Lab Crystal Phys, Kirensky Inst Phys,Fed Res Ctr,KSC, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Shandong Univ, Sch Mat Sci & Engn, Jinan 266071, Peoples R China.
Wuyi Univ, Sch Appl Phys & Mat, Jiangmen 529020, Guangdong, Peoples R China.

Доп.точки доступа:
Liu, Dongjie; Yun, Xiaohan; Li, Guogang; Dang, Peipei; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lian, Hongzhou; Shang, Mengmeng; Lin, Jun
}
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18.

    Thermometry and up-conversion luminescence of Ln3+ (Ln = Er, Ho, Tm)-doped double molybdate LiYbMo2O8 / X. Y. Yun, J. Zhou, Y. H. Zhu [et al.] // J. Mater. Sci.: Mater. Electron. - 2020. - Vol. 31, Is. 21. - P. 18370-18380, DOI 10.1007/s10854-020-04382-8. - Cited References: 41. - This work is supported by the National Natural Science Foundation of China (No. 21576002 and 61705003) and Beijing Technology and Business University Research Team Construction Project (No. PXM2019_014213_000007) . - ISSN 0957-4522. - ISSN 1573-482X
   Перевод заглавия: Термометрия и апконверсионная люминесценции двойного молибдата LiYbMo2O8, легированного Ln (3+) (Ln = Er, Ho, Tm)

РУБ Engineering, Electrical & Electronic + Materials Science, Multidisciplinary + Physics, Applied + Physics, Condensed Matter
Рубрики:
TEMPERATURE SENSING BEHAVIOR
   OPTICAL THERMOMETRY
   EMISSION
   PHOSPHOR
Аннотация: The discovery of stable and highly sensitive up-conversion (UC) phosphors using the fluorescence intensity ratio (FIR) is a significant challenge in the field of optical temperature sensor. Er3+/Ho3+/Tm3+-doped LiYbMo2O8 UC phosphors with excellent luminescence properties were successfully synthesized through a high-temperature solid-state reaction, and the crystal structure and UC luminescence properties were discussed in detail. The UC process has been investigated by spectra pump power dependence and further explained via the energy level diagram. All emission processes about Er3+ ions and Ho3+ ions are two-photon processes and the blue emission process about Tm3+ ions is a combination of two-photon process and three-photon process. Thermal sensing performances depended on FIR technology were estimated and the sensitivities of LiYb1−xMo2O8:xLn3+ included absolute sensitivity (Sa) and relative sensitivity (Sr) can produce particular change rules with the temperature, which can serve as excellent candidates for applications in optical temperature sensing. With the increase of temperature, the maximum values of Sr of LiYb1−xMo2O8:xLn3+ are 1.16% K−1 (0.05Er3+), 0.25% K−1 (0.01Ho3+), and 0.51% K−1 (0.01Tm3+), respectively. In addition, the Sa value of LiYb0.95Mo2O8:0.05Er3+ phosphor will reach the maximum (1.08% K−1) at 475 K, while the maximum values of Sa of LiYb0.99Mo2O8:0.01Ho3+ and LiYb0.99Mo2O8:0.01Tm3+ are 0.16% K−1, 0.14% K−1.

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Beijing Technol & Business Univ, Sch Sci, Beijing 100048, Peoples R China.
RAS, Fed Res Ctr, Kirensky Inst Phys, Lab Crystal Phys,KSC,SB, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.

Доп.точки доступа:
Yun, Xiangyan; Zhou, Jun; Zhu, Yaohui; Molokeev, M. S.; Молокеев, Максим Сергеевич; Jia, Yetong; Wei, Chao; Xu, Denghui; Sun, Jiayue
}
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19.

    Structural analysis and optical temperature sensing performance of Eu3+-doped Ba3In(PO4)3 / G. Q. Zhang, M. S. Molokeev, Q. C. Ma [et al.] // CrystEngComm. - 2020. - Vol. 22, Is. 35. - P. 5809-5817, DOI 10.1039/d0ce00997k. - Cited References: 52. - This work was supported by the National Natural Science Foundation of China (Grant No. 51802172) and the Qinghai Provincial Natural Science Foundation for Young Scholars (No. 2018-ZJ-957Q) . - ISSN 1466-8033
   Перевод заглавия: Структурный анализ и эффективность оптического измерения температуры Ba3In(PO4)3, легированного Eu3+

РУБ Chemistry, Multidisciplinary + Crystallography
Рубрики:
FLUORESCENCE INTENSITY RATIO
UP-CONVERSION EMISSIONS
RARE-EARTH IONS
Аннотация: Eu3+-Doped Ba3In(PO4)3 was synthesized through a high-temperature solid-phase method. According to the structure refinement based on X-ray diffraction and density functional theory, the crystal and energy band structures of Ba3In(1−x)(PO4)3:xEu3+ were studied and analyzed in detail. The effect of Eu3+ doping concentrations on emission was studied at an excitation wavelength of 393 nm. For the material Ba3In(1−x)(PO4)3:xEu3+(x = 0.01–0.30), the optimal doping level is confirmed to be 0.18. Due to the thermal quenching differences of Eu3+ at the 5D0 and 5D1 energy levels, and based on the temperature-variable fluorescence intensity ratio between emission peaks, the optical temperature measurement performance of this material in the temperature range from 298.15 K to 623.15 K was characterized, and the maximum absolute and relative sensor sensitivities (Sa and Sr) were determined to be 0.1002 K−1 and 4.058%, respectively. With temperature as the only variable, the color of the phosphor changes from red to yellow light with rising temperature. Besides, Sa and Sr values of this phosphor are comparable to other sensing materials. The results indicate that Eu3+-doped Ba3In(PO4)3 phosphors have great potential to be applied in optical temperature sensing.

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Держатели документа:
Qinghai Univ, Qinghai Prov Engn Res Ctr High Performance Light, Qinghai Prov Key Lab New Light Alloys, Xining 810016, Peoples R China.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.

Доп.точки доступа:
Zhang, Guangqing; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ma, Qianchao; Yang, Xuening; Han, Shuiquan; Chen, Q.i.; Zhong, Binnian; Ma, Bin
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20.

Maksimov, D. N.
Optical bistability with bound states in the continuum in dielectric gratings / D. N. Maksimov, A. A. Bogdanov, E. N. Bulgakov // Phys. Rev. A. - 2020. - Vol. 102, Is. 3. - Ст. 033511, DOI 10.1103/PhysRevA.102.033511. - Cited References: 53. - This work was financially supported by the Government of the Russian Federation through the ITMO Fellowship and Professorship Program. A.A.B. also acknowledges support by the Ministry of Science and Higher Education of Russian Federation, goszadanie No. 2019-1246 and RFBR (18-32-20205) . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
COUPLED-MODE THEORY
   WAVE-GUIDE
   TRANSITION
   RESONANCE
   ARRAYS
Аннотация: We consider light scattering by dielectric gratings supporting optical bound states in the continuum. Due to the presence of instantaneous Kerr nonlinearity critical field enhancement in the spectral vicinity of the bound state triggers the effect of optical bistability. The onset of bistability is explained theoretically in the framework of the temporal coupled-mode theory. As the central result we cast the problem in the form of a single field-driven nonlinear oscillator. The theoretical results are verified in comparison with numerical simulations.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
ITMO Univ, Dept Phys & Engn, St Petersburg 191002, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.

Доп.точки доступа:
Bogdanov, A. A.; Bulgakov, E. N.; Булгаков, Евгений Николаевич; Максимов, Дмитрий Николаевич; Government of the Russian Federation through the ITMO Fellowship; Ministry of Science and Higher Education of Russian Federation, goszadanie [2019-1246]; RFBRRussian Foundation for Basic Research (RFBR) [18-32-20205]
}
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