Персона:
Карцев, Петр Федорович

Организационные подразделения

Организационная единица

Институт лазерных и плазменных технологий

Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.

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Карцев

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Петр Федорович

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Теперь показываю 1 - 10 из 15

Только метаданные
Surface Physicochemical Treatment of Nickel Foam for Increasing Its Electrocatalytic Activity in Overall Water Splitting
(2020) Fominski, D. V.; Nevolin, V. N.; Romanov, R. I.; Fominski, V. Y.; Komleva, O. V.; Kartsev, P. F.; Novikov, S. M.; Фоминский, Дмитрий Вячеславович; Неволин, Владимир Николаевич; Романов, Роман Иванович; Фоминский, Вячеслав Юрьевич; Рубинковская, Оксана Владимировна; Карцев, Петр Федорович
© 2020, Pleiades Publishing, Ltd.Abstract: The possibility of using physicochemical methods for treating a nickel foam to increase its electrocatalytic activity in hydrogen and oxygen evolution reactions in an aqueous alkaline solution was studied. The modification of a 1-mm-thick sheet of the foam was carried out through its surface and included physical deposition of pulsed laser plasma for the formation of catalytic MoSx and MoSxSey films, followed by their annealing. The effect of foam pretreatment by sulfurization in H2S under varying conditions and formation of catalytic layers with different structures and compositions was studied. The best improvement in the electrocatalytic performance of the foam was exerted by thin-film coatings of molybdenum sulfide and sulfide/selenide with a nanocrystalline structure formed on the surface of a foam with a Ni3S2 underlayer. The possibility of a synergetic effect of the formed phases was analyzed by DFT calculations. For the optimum composition of the modified layers, the overvoltage of H2 evolution (for a current density of 10 mA/cm2) decreased to 155 mV, and the overvoltage of O2 evolution did not exceed 160 mV. The electrocatalytic characteristics obtained by this treatment are not inferior to those for the best modern electrocatalysts created on nickel foam by widely used methods of hydrothermal synthesis or electrodeposition.
Только метаданные
High-performance micromagnetic simulations using OpenCL
(2020) Kartsev, P. F.; Карцев, Петр Федорович
© 2020 Owner/Author.We study the possibility to achieve optimal performance in micromagnetic simulation using GPGPU OpenCL calculations. We take into account several possibilities to accelerate using GPU-specific optimizations and reuse of external data arrays, and achieve up to 70% of theoretical maximum.
Только метаданные
Formation of Effective Electrocatalysts of Hydrogen Evolution MoSx > 2 by Pulsed Laser Ablation Assisted by the Deposition of Mo Nanoparticles
(2020) Golubkov, G. V.; Fominski, D. V.; Nevolin, V. N.; Fominski, V. Y.; Romanov, R. I.; Komleva, O. V.; Kartsev, P. F.; Фоминский, Дмитрий Вячеславович; Неволин, Владимир Николаевич; Фоминский, Вячеслав Юрьевич; Романов, Роман Иванович; Рубинковская, Оксана Владимировна; Карцев, Петр Федорович
© 2020, Pleiades Publishing, Ltd.Abstract: The mechanisms of film formation during pulsed laser ablation of a MoS2 target were studied. The conditions for the deposition of laser erosion plume were determined. This made it possible to obtain coatings with a porous structure consisting of round Mo nanoparticles coated with a thin shell of amorphous molybdenum sulfide MoSx > 2. Due to its hybrid structure, the MoSx > 2/Mo nanomaterial can be effectively used for electro- and photocatalysis of water splitting. The MoSx> 2/Mo films deposited on a glassy carbon substrate are characterized by good current transport and high active surface area. When the film thickness increased due to the increased deposition time, the overvoltage of hydrogen evolution in an acid solution monotonically decreased to 142.5 mV, which was necessary in order to obtain current density of hydrogen evolution of 10 mA/cm2. The catalyst loading was 230 μg/cm2. Further increase in the loading did not significantly reduce the overvoltage. The results indicate that it is promising to use Mo nanoparticles as an ultrafine support for the catalytic nanolayers of amorphous molybdenum sulfide.
Только метаданные
High-performance GPGPU OpenCL simulation of quantum Boltzmann equation
(2020) Kartsev, P. F.; Карцев, Петр Федорович
© 2020 Owner/Author.We describe the OpenCL GPGPU solver for Quantum Boltzmann equation to study the dynamics of interacting Bose gas. GPU approach allows to manage large system of equations and the required amount of calculations.
Только метаданные
Application of OpenCL to numerical study of the Abrikosov vortex system in superconductor with cylindrical hole
(2019) Kartsev, P. F.; Korchagin, D. S.; Карцев, Петр Федорович
© 2019 Copyright held by the owner/author(s).We solve numerically the system of Ginzburg-Landau equations describing a superconductor containing Abrikosov vortices in the special geometry essential for practical application: bulk material with a cylindrical hole. We apply the GPU OpenCL solver developed especially for vortex-type problems. We describe the OpenCL specific optimizations used for maximal GPU utilization and overall calculation performance.
Только метаданные
Pulsed laser deposition of nanostructured MoS3/np-Mo//WO3-y hybrid catalyst for enhanced (Photo) electrochemical hydrogen evolution
(2019) Gnedovets, A.; Novikov, S.; Fominskii, V.; Fominski, D.; Romanov, R.; Kartsev, P.; Rubinkovskaya, O.; Фоминский, Вячеслав Юрьевич; Фоминский, Дмитрий Вячеславович; Романов, Роман Иванович; Карцев, Петр Федорович; Рубинковская, Оксана Владимировна
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.Pulsed laser ablation of MoS2 and WO3 targets at appropriate pressures of background gas (Ar, air) were used for the preparation of new hybrid nanostructured catalytic films for hydrogen production in an acid solution. The films consisted of a nanostructured WO3-y underlayer that was covered with composite MoS3/np-Mo nanocatalyst. The use of dry air with pressures of 40 and 80 Pa allowed the formation of porous WO3-y films with cauliflower- and web-like morphology, respectively. The ablation of the MoS2 target in Ar gas at a pressure of 16 Pa resulted in the formation of amorphousMoS3films and spherical Mo nanoparticles. The hybrid MoS3/np-Mo//WO3-y films deposited on transparent conducting substrates possessed the enhanced (photo)electrocatalytic performance in comparison with that of any pristine one (MoS3/np-Mo or WO3-y films) with the same loading. Modeling by the kinetic Monte Carlo method indicated that the change in morphology of the deposited WO3-y films could be caused by the transition of ballistic deposition to diffusion limited aggregation of structural units (atoms/clusters) under background gas pressure growth. The factors and mechanisms contributing to the enhancement of the electrocatalytic activity of hybrid nanostructured films and facilitating the effective photo-activation of hydrogen evolution in these films are considered.
Только метаданные
Stages of the Excitation Relaxation in a Superconductor after the Impact of a Femtosecond Laser Pulse Taking into Account the Momentum Distribution of Quasiparticles
(2019) Kartsev, P. F.; Kuznetsov, I. O.; Карцев, Петр Федорович; Кузнецов, Илья Олегович
© 2019, Pleiades Publishing, Ltd.A theoretical model is formulated for the description of the nonequilibrium state of a superconductor on the basis of the nonequilibrium distribution function of phonons and quasiparticles on a finite momentum lattice convenient for numerical simulation. The simulation is performed under conditions of pulsed optical impact demonstrating the role of excess quasiparticles in suppressing the order parameter and the main stages of the relaxation process in the absence of electric current.
Только метаданные
Effect of transport current on suppression of superconductivity with ultrashort laser pulse
(2021) Kartsev, P. F.; Kuznetsov, I. O.; Карцев, Петр Федорович; Кузнецов, Илья Олегович
© 2021 IOP Publishing Ltd.We study the suppression of superconductivity with ultrashort laser pulse in the presence of transport current. The theoretical model is based on the Bardeen-Cooper-Schrieffer relations for the superconducting state coupled with kinetic equations for nonequilibrium Bogoliubov quasiparticles and phonons. The results of numerical simulation for picosecond and femtosecond laser pulses of optical and infrared ranges are given. We discuss the effects of main problem parameters, including the current density.
Только метаданные
Numerical simulation of suppression of superconductivity with ultrashort laser pulse
(2022) Kuznetsov, I.; Kartsev, P.; Кузнецов, Илья Олегович; Карцев, Петр Федорович
IEEEWe study the problem of switching the superconductor to normal state with ultrashort laser pulse. We use original theoretical model based on kinetic equation for nonequilibrium Bogoliubov quasiparticles and phonons coupled with BCS theory relations for superconducting order parameter. Numerical simulation of the model allows to obtain the general behavior of excess particles and superconducting energy gap, and shows the characteristic features of the relaxation processes observed in experiment. In this work, we investigate the gap suppression in a superconductor excited with ultrashort laser pulse, and show the effects of laser frequency and transport current density on the duration of the process.
Только метаданные
Study of the Mechanism of Photoactivated Hydrogen Evolution on a Silicon Photocathode with a-MoS x Thin-Film Catalyst
(2023) Rubinkovskaya, O. V.; Nevolin, V. N.; Fominski, D. V.; Romanov, R. I.; Kartsev, P. F.; Fominski, V. Y.; Рубинковская, Оксана Владимировна; Неволин, Владимир Николаевич; Фоминский, Дмитрий Вячеславович; Романов, Роман Иванович; Карцев, Петр Федорович; Фоминский, Вячеслав Юрьевич