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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Карпов, Сергей Васильевич, Гаврилюк, Анатолий Петрович, Исаев, Иван Леонидович, Герасимов, Валерий Сергеевич, Грачев, Александр Сергеевич, Рассказов, Илья Леонидович, Ципотан, Алексей Сергеевич
Заглавие : Самоорганизация наночастиц серебра в плазмонно-резонансные нановолноводы для видимого диапазона спектра на электростатически функционализированных диэлектрических подложках
Коллективы : "Многомасштабное моделирование процессов и структур в нанотехнологиях", Всероссийская конференция
Место публикации : Многомасштабное моделирование процессов и структур в нанотехнологиях: [сб. тезисов докл II Всерос. конф. : 28-30 мая 2009 г., Москва]. - С. 126-127
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Карпов, Сергей Васильевич, Исаев, Иван Леонидович, Герасимов, Валерий Сергеевич, Грачев, Александр Сергеевич, Гаврилюк, Анатолий Петрович
Заглавие : Изменения спектров плазмонного поглощения наноколлоидов в процессе их кристаллизации
Коллективы : "Многомасштабное моделирование процессов и структур в нанотехнологиях", Всероссийская конференция
Место публикации : Многомасштабное моделирование процессов и структур в нанотехнологиях: [сб. тезисов докл II Всерос. конф. : 28-30 мая 2009 г., Москва]. - С. 119-120
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Карпов, Сергей Васильевич, Гаврилюк, Анатолий Петрович, Исаев, Иван Леонидович, Герасимов, Валерий Сергеевич, Грачев, Александр Сергеевич
Заглавие : Регистрация температурных фазовых переходов коллоидных кристаллов по спектрам плазмонного поглощения
Коллективы : "Многомасштабное моделирование процессов и структур в нанотехнологиях", Всероссийская конференция
Место публикации : Многомасштабное моделирование процессов и структур в нанотехнологиях: [сб. тезисов докл II Всерос. конф. : 28-30 мая 2009 г., Москва]. - С. 121-122
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Карпов, Сергей Васильевич, Гаврилюк, Анатолий Петрович, Исаев, Иван Леонидович, Герасимов, Валерий Сергеевич, Грачев, Александр Сергеевич
Заглавие : Спектры плазмонного поглощения дефектных коллоидных кристаллов
Коллективы : "Многомасштабное моделирование процессов и структур в нанотехнологиях", Всероссийская конференция
Место публикации : Многомасштабное моделирование процессов и структур в нанотехнологиях: [сб. тезисов докл II Всерос. конф. : 28-30 мая 2009 г., Москва]. - С. 123-124
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gavrilyuk A. P., Isaev I. L., Gerasimov V. S., Karpov S. V.
Заглавие : Physical principles of the formation of a nanoparticle electric double layer in metal hydrosols
Место публикации : Colloid Polym. Sci. - 2020. - Vol. 298, Is. 1. - P.1-7. - ISSN 0303-402X, DOI 10.1007/s00396-019-04573-8. - ISSN 1435-1536 (eISSN)
Примечания : Cited References: 25. - The reported research was funded by the Russian Foundation for Basic Research and the government of the Krasnoyarsk territory, Krasnoyarsk Regional Fund of Science, grant No 18-42-243023, the RF Ministry of Education and Science, the State contract with Siberian Federal University for scientific research in 2017–2019.
Аннотация: The Brownian dynamics method is employed to study the formation of an electrical double layer (EDL) on the metal nanoparticle (NP) surface in hydrosols during adsorption of electrolyte ions from the interparticle medium. Also studied is the charge accumulation by NPs in the Stern layer. To simulate the process of the formation of EDL, we took into account the effect of image forces and specific adsorption, dissipative and random forces, and the degree of hydration of adsorbed ions on the EDL structure. The employed model makes it possible to determine the charge of NPs and the structure of EDL. For the first time, the charge of both the diffuse part of EDL and the dense Stern layer has been determined. A decrease in the electrolyte concentration (below c ˂ 0.1 mol/l) has been found to result in dramatic changes in the formation of the Stern layer.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ershov A. E., Gerasimov V. S., Isaev I. L., Gavrilyuk A. P., Karpov S. V.
Заглавие : Processes underlying the laser photochromic effect in colloidal plasmonic nanoparticle aggregates*
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory [18-42-243023]; Krasnoyarsk Regional Fund of Science [18-42-243023]; RF Ministry of Science and Higher Education; Siberian Federal University for Scientific Research; Russian FederationRussian Federation [075-15-2019-676]
Место публикации : Chin. Phys. B. - 2020. - Vol. 29, Is. 3. - Ст.037802. - ISSN 1674-1056, DOI 10.1088/1674-1056/ab6551. - ISSN 1741-4199(eISSN)
Примечания : Cited References: 38. - Project funded by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science (Grant 18-42-243023), the RF Ministry of Science and Higher Education, and the State Contract with Siberian Federal University for Scientific Research. A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676).
Предметные рубрики: SELECTIVE PHOTOMODIFICATION
LIGHT
FORCES
OPTICS
Аннотация: We have studied the dynamic and static processes occurring in disordered multiparticle colloidal Ag aggregates with natural structure and affecting their plasmonic absorption spectra under pico- and nanosecond pulsed laser radiations, as well as the physical origin responsible for these processes. We have shown that depending on the duration of the laser pulse, the mechanisms of laser modification of such aggregates can be associated both with changes in the resonant properties of the particles due to their heating and melting (picosecond irradiation mode) and with the particle shifts in the resonant domains of the aggregates (nanosecond pulses) which depend on the wavelength, intensity, and polarization of the radiation. These mechanisms result in formation of a narrow dip in the plasmonic absorption spectrum of the aggregates near the laser radiation wavelength and affect the shape and position of the dip. The effect of polydispersity of nanoparticle aggregates on laser photochromic reaction has been studied.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gavrilyuk A. P., Gerasimov V. S., Ershov A. E., Karpov S. V.
Заглавие : Temperature dependent elastic repulsion of colloidal nanoparticles with a polymer adsorption layer
Коллективы : Russian Foundation for Basic Research; government of the Krasnoyarsk territory and Krasnoyarsk Regional Fund of Science [18-42-243023]; RF Ministry of Science and Education,; State contract with Siberian Federal University for scientific research in 2017-2019; SB RAS Program [II.2P (0358-2015-0010)]
Место публикации : Colloid Polym. Sci. - 2018. - Vol. 296, Is. 10. - P.1689-1697. - ISSN 0303-402X, DOI 10.1007/s00396-018-4383-y. - ISSN 1435-1536(eISSN)
Примечания : Cited References: 49. - The reported research was funded by the Russian Foundation for Basic Research, the government of the Krasnoyarsk territory and Krasnoyarsk Regional Fund of Science, grant 18-42-243023, the RF Ministry of Science and Education, the State contract with Siberian Federal University for scientific research in 2017-2019, and SB RAS Program No II.2P (0358-2015-0010).
Предметные рубрики: STERICALLY-STABILIZED PARTICLES
DEPLETION FLOCCULATION
AGGREGATION
Ключевые слова (''Своб.индексиров.''): nanoparticle--adsorption layer--elastic deformation--coagulation--kinetics--elasticity modulus
Аннотация: The model of pairwise elastic repulsion of contacting colloidal nanoparticles with a rigid core and deformable shell is discussed. A simple analytical equation is applied for the energy of elastic repulsion of nanoparticles with arbitrary sizes and the elasticity moduli of self-healing polymer adsorption layers. The model is based on the representation of the absorption layer as a continuous medium that is elastically deformed upon the contact of nanoparticles. The major characteristic of this medium is the elasticity modulus. The magnitude of the elasticity modulus is determined from the condition of balance of the van der Waals attractive forces of nanoparticles and the elastic repulsion of their adsorption layers in the contact area, taking into account the temperature variations. We employed the kinetic approach to describe the dependence of the elasticity modulus on both the temperature and the rate of its change.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gerasimov V. S., Ershov A. E., Karpov S. V., Gavrilyuk A. P., Zakomirnyi V. I., Rasskazov I. L., Agren H., Polyutov S. P.
Заглавие : Thermal effects in systems of colloidal plasmonic nanoparticles in high-intensity pulsed laser fields [Invited]
Место публикации : Opt. Mater. Express: Optical Society of America, 2017. - Vol. 7, Is. 2. - P.555-568. - ISSN 21593930 (ISSN), DOI 10.1364/OME.7.000555
Примечания : Cited References: 68. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2017-2019 and SB RAS Program No II.2P (0358-2015-0010). The calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Federal Research Center KSC SB RAS.
Ключевые слова (''Своб.индексиров.''): aggregates--gold--nanoparticles--plasmons--silver--ag nanoparticle--high intensity--light-induced process--nanoparticle aggregate--physical model--plasmonic nanoparticle--pulsed-laser field--thermal interaction--pulsed lasers
Аннотация: We have studied light induced processes in nanocolloids and composite materials containing ordered and disordered aggregates of plasmonic nanoparticles accompanied by their strong heating. A universal comprehensive physical model that combines mechanical, electrodynamical, and thermal interactions at nanoscale has been developed as a tool for investigations. This model was used to gain deep insight on phenomena that take place in nanoparticle aggregates under high-intensity pulsed laser radiation resulting in the suppression of nanoparticle resonant properties. Verification of the model was carried out with single colloidal Au and Ag nanoparticles and their aggregates. © 2017 Optical Society of America.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ershov A. E., Gerasimov V. S., Gavrilyuk A. P., Karpov S. V., Zakomirnyi V. I., Rasskazov I. L., Polyutov S. P.
Заглавие : Thermal limiting effects in optical plasmonic waveguides
Место публикации : J. Quant. Spectrosc. Radiat. Transf.: Elsevier, 2017. - Vol. 191. - P.1-6. - ISSN 00224073 (ISSN), DOI 10.1016/j.jqsrt.2017.01.023
Примечания : Cited References: 51. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2017-2019 and SB RAS Program No II.2P (0358-2015-0010). The numerical calculations were performed using the MVS-1000M cluster at the Institute of Computational Modeling, Federal Research Center KSC SB Russian Academy of Sciences.
Ключевые слова (''Своб.индексиров.''): plasmon resonance--optical plasmonic waveguide--surface plasmon polariton--thermal effects
Аннотация: We have studied thermal effects occurring during excitation of optical plasmonic waveguide (OPW) in the form of linear chain of spherical Ag nanoparticles by pulsed laser radiation. It was shown that heating and subsequent melting of the first irradiated particle in a chain can significantly deteriorate the transmission efficiency of OPW that is the crucial and limiting factor and continuous operation of OPW requires cooling devices. This effect is caused by suppression of particle's surface plasmon resonance due to reaching the melting point temperature. We have determined optimal excitation parameters which do not significantly affect the transmission efficiency of OPW. © 2017
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ershov A. E., Gerasimov V. S., Gavrilyuk A. P., Karpov S. V.
Заглавие : Surface plasmon resonances in liquid metal nanoparticles
Место публикации : Appl. Phys. B: Springer, 2017. - Vol. 123, Is. 6. - Ст.182. - ISSN 09462171 (ISSN), DOI 10.1007/s00340-017-6755-2
Примечания : This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientifc research in 2017–2019. The numerical calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences.
Ключевые слова (''Своб.индексиров.''): aggregates--dimers--gold--liquids--metal nanoparticles--nanoparticles--nonlinear optics--silver--surface plasmon resonance--au nanoparticle--colloidal aggregates--experimental values--experimental verification--metallic nanoparticles--nonlinear optical response--plasmonic nanoparticle--surface plasmon frequency--plasmons
Аннотация: We have shown significant suppression of resonant properties of metallic nanoparticles at the surface plasmon frequency during the phase transition “solid–liquid” in the basic materials of nanoplasmonics (Ag, Au). Using experimental values of the optical constants of liquid and solid metals, we have calculated nanoparticle plasmonic absorption spectra. The effect was demonstrated for single particles, dimers and trimers, as well as for the large multiparticle colloidal aggregates. Experimental verification was performed for single Au nanoparticles heated to the melting temperature and above up to full suppression of the surface plasmon resonance. It is emphasized that this effect may underlie the nonlinear optical response of composite materials containing plasmonic nanoparticles and their aggregates. © 2017, Springer-Verlag Berlin Heidelberg.
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