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Nonlinear diffraction and random QPM in strontium tetraborate / Aleksandrovsky A.S., Shakhura I.E., Vyunyshev A.M., Zaitsev A.I., Zamkov A.V. // 4th International Conference on Advanced Optoelectronics and Lasers (CAOL 2008), Sept. 29 2008-Oct. 4, 2008,Alushta, Crimea, Ukraine, p.398

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Shakhura, I. E.; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A. I.; Зайцев, Александр, Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич
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Nonlinear optical processes in randomized domain structures of strontium tetraborate / Aleksandrovsky A.S., Shakhura I.E., Vyunyshev A.M., Zaitsev A.I., Zamkov A.V. // International Conference "Laser Optics 2008" June 23-28, 2008, St.Petersburg, Russia, p.55

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Shakhura, I. E.; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A. I.; Зайцев, Александр, Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич
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Luminescence of manganese ions in yttrium aluminium borate / Aleksandrovsky A.S., Gudim I.A., Krylov A.S, Temerov V.E. // 15th International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, Lyon, 2008, p.482

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Gudim, I. A.; Гудим, Ирина, Анатольевна; Krylov, A. S; Temerov, V. E.
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Crystal growth and cation order of Ni3-xCoxB2O6 oxyborates / S. Sofronova, E. Moshkina, A. Chernyshev [et al.] // CrystEngComm. - 2024, DOI 10.1039/D4CE00091A. - Cited References: 28. - The research was funded by Russian Science Foundation and Krasnoyarsk Regional Fund of Science, project № 23-12-20012 (https://rscf.ru/en/project/23-12-20012/) . - Article in press. - ISSN 1466-8033
Аннотация: A series of single crystals of Ni3-xCoxB2O6 compounds with the kotoite structure and with different concentrations of transition metal ions (x = 0; 0,19; 0,6; 0,93; 2) were obtained. The lattice parameters and atomic coordinates were determined using X-ray diffraction. The theoretical calculations using the WIEN2k package predict that nickel ions tend to occupy the 4f crystallographic position, while cobalt ions tend to occupy the 2a crystallographic positions. The study of the diffuse scattering spectra and comparison of the Racah parameters for the compounds Ni3B2O6 and Co2NiB2O6 provides experimental evidence that the nickel ions occupy crystallographic position 4f.

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Держатели документа:
Kirensky Institute of Physics of the Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", 660036 Krasnoyarsk, Russia
Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Russia

Доп.точки доступа:
Sofronova, S. N.; Софронова, Светлана Николаевна; Moshkina, E. M.; Мошкина, Евгения Михайловна; Chernyshev, A.; Чернышев, Артем Валерьевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Maximov, N.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Andryushchenko, T.; Андрющенко, Татьяна Александровна; Shabanov, A. V.; Шабанов, Александр Васильевич
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    Получение и активация TiO2 фотонно- кристаллических структур для повышения эффективности реакции фотоэлектрохимического разложения воды / Т. А. Кенова, Н. А. Зосько, М. В. Пятнов [и др.] // Журн. СФУ. Химия. - 2024. - Т. 17, № 1. - С. 27-38 ; J. Sib. Fed. Univ. Chem. - Библиогр.: 25. - Исследование выполнено за счет гранта Российского научного фонда и Красноярского краевого фонда поддержки научной и научно-технической деятельности № 22-22-20078, https://rscf.ru/project/22-22-20078/ с использованием оборудования Красноярского регионального центра коллективного пользования ФИЦ КНЦ СО РАН . - ISSN 1998-2836. - ISSN 2313-6049
   Перевод заглавия: Synthesis and activation of TiO2 photonic crystal structures for enhanced photoelectrochemical water splitting
Кл.слова (ненормированные):
фотонно-кристаллические TiO2 наноструктуры -- активация TiO2 фотонных кристаллов -- фотоэлектрохимическая активность -- разложение воды -- photonic-crystal TiO2 nanostructures -- TiO2 photonic crystals activation -- photoelectrochemical activity -- water splitting
Аннотация: Наноструктурированные фотонно-кристаллические пленки TiO2 анодно синтезированы при импульсном и ступенчатом изменениях напряжения. Полученные фотонные структуры активированы методом циклической вольтамперометрии в 0,5M Na2SO4. Фотоэлектрохимическая активность электродов исследована в реакции разложения воды в области длин волн 360–700 нм. Активация приводит к изменению энергии запрещенной зоны, красному сдвигу спектра IPCE и увеличению его значений в исследованном диапазоне длин волн.
TiO2 photonic crystal nanostructure films are anodic synthesized with pulsed and stepwise voltage changes. The obtained photonic structures were activated by cyclic voltammetry in 0.5M Na2SO4. The photoelectrochemical activity of the electrodes was studied in the water splitting reaction in the wavelength range 360–700 nm. Activation leads to a change in the band gap energy, a red shift in the IPCE spectrum and an increase in its values in the studied wavelength range.

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Держатели документа:
Институт химии и химической технологии СО РАН ФИЦ "Красноярский научный центр СО РАН", Российская Федерация, Красноярск
Институт физики им. Л.В. Киренского СО РАН ФИЦ "Красноярский научный центр СО РАН", Российская Федерация, Красноярск
Сибирский федеральный университет, Российская Федерация, Красноярск

Доп.точки доступа:
Кенова, Т. А.; Зосько, Н. А.; Пятнов, Максим Владимирович; Pyatnov, M. V.; Александровский, Александр Сергеевич; Aleksandrovsky, A. S.; Максимов, Н. Г.; Жижаев, А. М.; Таран, О. П.

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    Elucidating elusive quaternary selenide EuCeCuSe3: Synthesis, crystal structure, properties and theoretical studies / M. V. Grigoriev, A. V. Ruseikina, M. S. Molokeev [et al.] // J. Rare Earths. - 2024. - Vol. 42, Is. 1. - P. 163-171, DOI 10.1016/j.jre.2022.11.004. - Cited References: 47 . - ISSN 1002-0721. - ISSN 2509-4963
   Перевод заглавия: Расшифровка труднодоступного четвертичного селенида EuCeCuSe3: синтез, кристаллическая структура, свойства и теоретические исследования
Кл.слова (ненормированные):
Quaternary selenide -- Synthesis -- Crystal structure -- Ab initio calculations -- Magnetic measurements -- Spectroscopy
Аннотация: We report on the novel heterometallic quaternary selenide EuCeCuSe3, the fabrication of which has been a challenge until this work. The structure of the reported selenide was elucidated from the powder X-ray diffraction data, which revealed the formation of EuCeCuSe3 with excellent yield (96.7%) accompanied with a minor fraction of CeSe2 (3.3%), and was best solved in orthorhombic space group Pnma with the BaLaCuS3 structural type. Thus, the crystal structure of the title compound completes the row of the heterometallic quaternary selenides EuRECuSe3 (RE = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y), of which the cerium-based derivative exclusively belongs to the BaLaCuS3 structural type. The distortion of the CuSe4 polyhedron was compared for the whole series of EuRECuSe3 compounds using the τ4-descriptor for four coordinated ions, which revealed the highest degree of distortion for the Ce3+-containing selenide, followed by the La3+-based derivative. Furthermore, the crystallographic and geometrical parameters of the reported selenide were discussed in comparison to the Ce3+-based sulfides SrCeCuS3 and EuCeCuS3. Ab initio calculations of the crystal structure, a phonon spectrum and elastic constants for the crystal of EuСeCuSe3 were also performed. The types and wavenumbers of fundamental modes were determined and the involvement of ions participating in the phonon modes was assessed. The experimental IR spectrum of the reported selenide was interpreted and found to be in agreement with the calculated spectrum. The experimental direct band gap of EuCeCuSe3 was measured to be 1.36 eV that is consistent with the concept of its origin due to interband transitions between orbitals emerging mainly from 4f (valence band) and 5d (conduction band) levels of the Eu2+ cation. The dependence of the Young's modulus on the direction demonstrates the anisotropy of the elastic properties, while the Vickers hardness for EuCeCuSe3 was calculated to be 5.2 GPa. Finally, the title compound is paramagnetic above 4 K.

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Держатели документа:
Laboratory of Theory and Optimization of Chemical and Technological Processes, University of Tyumen, Volodarskogo Str. 6, 625003, Tyumen, Russian Federation
Research and Development Department, Kemerovo State University, Krasnaya Str. 6, 650000, Kemerovo, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50 Bld. 38, 660036, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Serysheva Str. 47, 680021, Krasnoyarsk, Russian Federation
Institute of Natural Sciences and Mathematics, Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira Str. 19, 620002, Ekaterinburg, Russian Federation
Department of Photonics and Laser Technology, Siberian Federal University, Svobodnii Ave. 79, 660079, Krasnoyarsk, Russian Federation
Institute of Physics and Technology, University of Tyumen, Volodarskogo Str. 6, 625003 Tyumen, Russian Federation
Institute for Inorganic Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
Advanced Materials for Industry and Biomedicine Laboratory, Kurgan State University, Sovetskaya Str. 63/4, 640020, Kurgan, Russian Federation
Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira Str. 19, 620002, Ekaterinburg, Russian Federation
University of Tyumen, Volodarskogo Str. 6, 625003, Tyumen, Russian Federation

Доп.точки доступа:
Grigoriev, Maxim V.; Ruseikina, Anna V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Chernyshev, Vladimir А.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Shestakov, N. P.; Шестаков, Николай Петрович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Garmonov, Alexander A.; Matigorov, Alexey V.; Ostapchuk, Evgeny A.; Schleid, Thomas; Safin, Damir A.
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    Solid state synthesis, structural, DFT and spectroscopic analysis of EuAl3(BO3)4 / A. S. Oreshonkov, A. S. Aleksandrovsky, O. D. Chimitova [et al.] // Mater. Chem. Phys. - 2024. - Vol. 320. - Ст. 129400, DOI 10.1016/j.matchemphys.2024.129400. - Cited References: 55. - The work was carried out within the state assignment No FWES-2024-0003 of Kirensky Institute of Physics. This work was partially supported by the state order of BINM SB RAS (0273-2021-0008). The samples for this research were synthesized using equipment of the CCU BINM SB RAS. The reflectance spectrum was obtained at the Center for Optical and Laser Materials Research of Research park of St. Petersburg State University. The SEM measurements were performed at Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" . - ISSN 0254-0584. - ISSN 1879-3312
   Перевод заглавия: Твердофазный синтез, структурный, квантово-химический (DFT) и спектроскопический анализ EuAl3(BO3)4
Кл.слова (ненормированные):
EuAl(BO) -- Huntite -- X-ray diffraction -- SEM -- DFT -- Charge transfer -- Raman -- Infrared -- Luminescence
Аннотация: Huntite-like borates are versatile and promising materials with wide range of applications in frequency conversion, UV light generation, lighting, displays, quantum information storage, and more, demonstrated by their various properties and uses in scientific research. In this work, EuAl3(BO3)4 powder was prepared through multi-stage solid-state reaction method using high-purity starting reagents: Eu2O3, Al2O3 and H3BO3, considering a 20 wt% excess of H3BO3 to compensate for B2O3 volatilization. Obtained samples undergo several treatments at varying temperatures and their phase purity is subsequently verified through powder X-ray diffraction analysis. The scanning electron microscopy reveals that resulting EuAl3(BO3)4 powder consists of granules exhibiting irregular morphologies with dimensions of 0.5–8 μm. The electronic band structure of EuAl3(BO3)4, calculated using the GGA PBE method, reveals f-states of Eu near 4 eV. These states do not produce emphasized peaks on simulated absorbance spectra. Using of DFT + U for the f-states of Eu pushed up f-bands above 6 eV and the charge transfer from p-O to d-Eu was obtained (Egdirect = 5.63 eV, Egindirect = 5.37 eV using Ueff = 4 eV). The variation of Ueff has a weak influence on the position of the bottom of the conduction band. The experimental bandgaps of EuAl3(BO3)4 crystalline powder, both direct and indirect, are found to be 3.96 and 3.67 eV, correspondingly. These values are lower than theoretical values what is associated with limitations of DFT calculations involving f electrons. The Raman spectrum of EuAl3(BO3)4 powder is discussed, detailing the contributions of different ions to specific spectral bands. Investigation of high-resolution luminescence spectra shows the possibility to estimate the content of defects by the testing the violation of the prohibition of ultranarrow 5D0 → 7F0 line that is forbidden in the ideal crystalline structure of trigonal EuAl3(BO3)4.

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Держатели документа:
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
School of Engineering and Construction, Siberian Federal University, Krasnoyarsk, 660041, Russia
Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russia
Laboratory of Oxide Systems, Baikal Institute of Nature Management, SB RAS, Ulan-Ude, 670047, Russia
Center for Optical and Laser Materials Research, Saint-Petersburg State University, Saint-Petersburg, 199034, Russia
Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, 119334, Russia
Plekhanov Russian University of Economics, Moscow, 117997, Russia
Moscow Institute of Physics and Technology, Dolgoprudny, 141700, Russia
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
School of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russia
Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Department of Molecular Electronics, Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, 660036, Russia
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, 660041, Russia

Доп.точки доступа:
Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Chimitova, O.D.; Pankin, D.V.; Popov, Z.I.; Sukhanova, E.V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Adichtchev, S.V.; Pugachev, A.M.; Nemtsev, I. V.; Немцев, Иван Васильевич
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The Sm2S3-X-SmS-Sm2O2S refractory system: thermal analysis, phase diagram, and properties of the phases / I. O. Yurev, A. S. Aleksandrovsky, D. N. Kamaev [et al.] // J. Therm. Anal. Calorim. - 2024. - Vol. 149, Is. 5. - P. 2057-2073, DOI 10.1007/s10973-023-12792-z. - Cited References: 90. - The authors thank Prof. P.P. Fedorov, Chief Researcher of Prokhorov Institute of General Physics, Russian Academy of Sciences, for scientific advices. The authors thank N.I. Lozhkin, engineer of the Department of Inorganic and Physical Chemistry, Tyumen State University for the technical support of the visual thermal analysis setup. The authors thank N.A. Shulaev, research engineer of the Center for Nature-Inspired Engineering, Tyumen State University, for determining the elemental composition of samples by scanning electron microscopy. The authors thank I.V. Palamarchuk, research engineer of the Center for Collective Use "Rational Nature Management and Physical and Chemical Research" of the Tyumen State University, for measuring the diffuse reflectance spectra. The authors thank Doctor of Philology O.V. Trofimova, Professor at the Institute of Social Sciences and Humanities of the Tyumen State University, for her advices on academic writing. - This study was funded by the Russian Science Foundation, Project No. 23–23-00488 “Search for EMF generation conditions in gradient ceramics of samarium monosulfide (SmS)” . - ISSN 1388-6150. - ISSN 1588-2926
Кл.слова (ненормированные):
Samarium sulfides -- Refractory system -- Thermal analysis -- Ternary eutectic -- Phase diagram -- Band gap
Аннотация: Samarium monosulfide, a strain gauge and barometric material, exists in equilibrium with Sm3S4 and Sm2O2S in the S-Sm–O system. Therefore, studying phase equilibria in the refractory Sm2S3-X-SmS-Sm2O2S system is a scientifically interesting task. In this system, 49 samples were synthesized and studied by powder XRD, differential scanning calorimetry, visual thermal analysis, and microstructural analysis. Melting points of Sm3S4, SmS, and Sm2O2S compounds were determined. Eutectic diagrams of Sm3S4-Sm2O2S, SmS-Sm2O2S, SmS-Sm3S4 systems were constructed. Temperatures and compositions of the binary eutectic points were determined. Fusion enthalpies for Sm3S4, SmS, and Sm2O2S phases were estimated using the Schröder–Le Chatelier equation. The liquidus lines were calculated using second-degree polynomials and Redlich–Kister model. Coordinates of the ternary eutectic point in the Sm3S4-SmS-Sm2O2S system were calculated using the cutting-plane method and the Scheffé method. The calculated compositions of ternary eutectic points were averaged at one most probable point, in accordance with the data on the samples microstructure. The experimental temperature of the ternary eutectic point coincides with the calculated values within the margin of error. Positions of eutectic valleys and approximate positions of isotherms in the system were established. Thermodynamic parameters of the α-Sm2S3 → γ-Sm2S3 polymorphic transition and the dependence of the Sm2S3-X composition on heat treatment conditions were determined. According to the scanning electron microscopy data, the approximate composition of the crystallized from the melt Sm2S3 sample is Sm2S2.95. The Sm10S14O phase decomposes at 1470 ± 15 °C in the course of a solid-phase reaction. The phase diagram of the Sm2S3-X-Sm2O2S system was revisited. Optical band gaps of Sm10S14O and Sm2O2S phases were determined. The Sm10S14O compound was optically characterized for the first time; its direct and indirect optical bandgaps were found equal to 2.48 and 2.37 eV, respectively. The determined direct and indirect optical bandgaps of Sm2O2S (4.4 eV and 3.95 eV, respectively) agree with the earlier measurements, thus confirming the accuracy of the chosen synthesis procedures.

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Держатели документа:
Institute of Chemistry, Tyumen State University, Volodarsky Str. 6, Tyumen, 625003, Russia
Department of Physical and Applied Chemistry, Kurgan State University, Sovetskaya Str. 63/4, Kurgan, 640020, Russian Federation
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Akademgorodok Str. 50, Building 38, Krasnoyarsk, 660036, Russia
Siberian Federal University, Svobodnyj Av. 79, Krasnoyarsk, 660079, Russia
Institute of Physical Materials Science, SB RAS, Sakhyanova Str. 6, Ulan-Ude, 670047, Russian Federation
Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Pervomaiskaya Str. 91, Yekaterinburg, 620990, Russian Federation

Доп.точки доступа:
Yurev, I. O.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Kamaev, D. N.; Polkovnikov, A. A.; Grigorchenko, V. M.; Yarovenko, A. A.; Zelenaya, A. E.; Parfenova, M. D.; Andreev, O. V.
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    Synthesis and properties of the NdSF compound, phase diagram of the NdF3–Nd2S3 system / V. M. Grigorchenko, M. S. Molokeev, A. S. Oreshonkov [et al.] // J. Solid State Chem. - 2024. - Vol. 333. - Ст. 124640, DOI 10.1016/j.jssc.2024.124640. - Cited References: 48. - This research was funded by the Tyumen Oblast Government as part of the West-Siberian Interregional Science and Education Center’s project No. 89-DON (3). - The studies ab initio simulation of electron band structure, analysis of optical properties, XRD analysis was partially supported by "Priority-2030" program for the Siberian Federal University, and the state assignment of Kirensky Institute of Physics . - ISSN 0022-4596. - ISSN 1095-726X
   Перевод заглавия: Синтез и свойства соединения NdSF, фазовая диаграмма системы NdF3–Nd2S3
Кл.слова (ненормированные):
Neodymium fluorosulfide -- Phase diagram -- Optical band gap -- Microhardness
Аннотация: The NdF3–Nd2S3 system attracts attention of researchers due to the possibility of using LnSF compounds (Ln = rare earth element) as possible new p- and n-type materials. The samples of this system were synthesized from NdF3 and Nd2S3. The NdSF compound belongs to the PbFCl structural type, P4/nmm space group, unit cell parameters: a = 3.9331(20) Å, c = 6.9081(38) Å. The experimentally determined direct and indirect NdSF bandgaps are equal to 2.68 eV and 2.24 eV. The electronic band structure was calculated via DFT simulation. The NdSF compound melts congruently at T = 1385 ± 10°С, ΔНm = 40.5 ± 10 kJ/mol, ΔS = 24.4 ± 10 J/mol. The NdSF microhardness is 455 ± 10 HV. Five phase transformations in the NdF3–Nd2S3 system were recorded by DSC; their balance equations were derived. The liquidus of the system calculated from the Redlich–Kister equation is fully consistent with the DSC data.

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Держатели документа:
Tyumen State University, Tyumen, Volodarsky str. 6, 625003, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Akademgorodok str. 50, Building 38, 660036, Russia
Siberian Federal University, Krasnoyarsk, Svobodnyj av. 79, 660079, Russia
Department of Physical and Applied Chemistry, Kurgan State University, Sovetskaya str. 63/4, Kurgan, 640020, Russia
Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Pervomaiskaya str. 91, 620990, Russia
Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034, St. Petersburg, Russia

Доп.точки доступа:
Grigorchenko, V.M.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Kertman, A.V.; Abulkhaev, M.U.; Mereshchenko, A.S.; Yurev, I.O.; Shulaev, N.А.; Kamaev, D.N.; Elyshev, A.V.; Andreev, O.V.
}
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Intense charge transfer plasmons in golden nanoparticle dimers connected by conductive molecular linkers / A. S. Fedorov, M. A. Visotin, A. V. Lukyanenko [et al.] // J. Chem. Phys. - 2024. - Vol. 160, Is. 8. - Ст. 084110, DOI 10.1063/5.0183334. - Cited References: 52. - This study was supported by the Russian Science Foundation, Agreement No. 23-12-20007, and the Government of the Krasnoyarsk Territory and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, Agreement No. 256 . - ISSN 0021-9606. - ISSN 1089-7690
Аннотация: Golden nanoparticle dimers connected by conjugated molecular linkers 1,2-bis(2-pyridyl)ethylene are produced. The formation of stable dimers with 22 nm diameter nanoparticles is confirmed by transmission electron microphotography. The possibility of charge transfer through the linkers between the particles in the dimers is shown by the density functional theory calculations. In addition to localized plasmon resonance of solitary nanoparticles with a wavelength of 530 nm, the optical spectra exhibit a new intense absorption peak in the near-infrared range with a wavelength of ∼780 nm. The emergent absorption peak is attributed to the charge-transfer plasmon (CTP) mode; the spectra simulated within the CTP developed model agree with the experimental ones. This resonant absorption may be of interest to biomedical applications due to its position in the so-called transmission window of biological tissues. The in vitro heating of CTP dimer solution by a laser diode with a wavelength of 792 nm proved the efficiency of CTP dimers for achieving a temperature increase of ΔT = 6 °C, which is sufficient for hyperthermia treatment of malignant tumors. This indicates the possibility of using hyperthermia to treat malignant tumors using the material we synthesized.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
International Research Center of Spectroscopy and Quantum Chemistry – IRC SQC, Siberian Federal University, 660041 Krasnoyarsk, Russia
Siberian Federal University, 660041 Krasnoyarsk, Russia
Institute of Computational Modeling, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Visotin, M. A.; Высотин, Максим Александрович; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Gerasimov, V. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
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