Персона: Маслов, Михаил Михайлович
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Институт нанотехнологий в электронике, спинтронике и фотонике
Институт ИНТЭЛ занимается научной деятельностью и подготовкой специалистов в области исследования физических принципов, проектирования и разработки технологий создания компонентной базы электроники гражданского и специального назначения, а также построения современных приборов на её основе.
Наша основная цель – это создание и развитие научно-образовательного центра мирового уровня в области наноструктурных материалов и устройств электроники, спинтроники, фотоники, а также создание эффективной инновационной среды в области СВЧ-электронной и радиационно-стойкой компонентной базы, источников ТГц излучения, ионно-кластерных технологий материалов.
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Маслов
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Михаил Михайлович
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48 results
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- ПубликацияТолько метаданныеCarbon vs silicon polyprismanes: a comparative study of metallic sp(3)-hybridized allotropes(2020) Maslov, M. M.; Grishakov, K. S.; Gimaldinova, M. A.; Katin, K. P.; Маслов, Михаил Михайлович; Гришаков, Константин Сергеевич; Гимальдинова, Маргарита Александровна; Катин, Константин ПетровичPolyprismanes are the special type of single-walled nanotubes with an extremely small cross-section in the form of a regular polygon. In the presented study, we considered carbon and silicon polyprismanes that are constructed from carbon and silicon five-, six-, seven- and eight-membered rings, respectively. By means of density functional theory using the periodic boundary conditions, the geometry and electronic characteristics of these tubes were investigated. The results obtained indicate that, with an increase in the effective diameter, carbon polyprismanes undergo an abrupt change in electronic properties, which can be described as a transition from the dielectric to the metallic state. The character of the energy spectrum, as well as the behavior of transmission function near the Fermi level, illustrate that at some critical diameter they begin to exhibit non-typical for the sp(3)-carbon systems metallic nature. In such a case, it has been found from the partial density of electronic states calculation that the overlapping of bands near the Fermi level is mainly due to the 2p state of carbon atoms. Unlike carbon analogs, silicon polyprismanes are metals for any considered diameter. The metallic properties of the silicon polyprismanes arise due to the 3p states of the silicon atoms. Unexpected properties endowed by the prismane morphology discover new prospects of application of carbon and silicon nanostructures as the basic elements of future electronics.
- ПубликацияТолько метаданныеSilicon rebirth: Ab initio prediction of metallic sp3-hybridized silicon allotropes(2020) Katin, K. P.; Grishakov, K. S.; Gimaldinova, M. A.; Maslov, M. M.; Катин, Константин Петрович; Гришаков, Константин Сергеевич; Гимальдинова, Маргарита Александровна; Маслов, Михаил Михайлович© 2019 Elsevier B.V.We report the prediction of metallic quasione-dimensional sp3-hybridized silicon allotropes in the form of prismanes. Silicon prismanes or polysilaprismanes are the silicon nanotubes of a special type constructed from the dehydrogenated molecules of cyclosilanes (silicon rings). By means of density functional theory, the electronic, geometry, energy, and some mechanical properties of these tubes are investigated. Our results show that silicon polyprismanes are thermodynamically stable compounds, and the character of the energy spectrum, as well as the behavior of transmission function near the Fermi level, illustrate that they exhibit non-typical for the silicon systems metallic nature. Moreover, the metallic state of polysilaprismanes is resistant to the mechanical stresses applied along their main axis. Unusual properties predicted in the presented study discover new prospects of application of silicon nanostructures as the basic elements of future micro- and nanoelectronics, as well as in energy, metrology, medical, and information technologies.
- ПубликацияТолько метаданныеKinetic stability of nitrogen cubane inside the fullerene cage: Molecular dynamics study(2020) Gimaldinova, M. A.; Katin, K. P.; Grishakov, K. S.; Maslov, M. M.; Гимальдинова, Маргарита Александровна; Катин, Константин Петрович; Гришаков, Константин Сергеевич; Маслов, Михаил МихайловичUsing tight-binding molecular dynamics simulations, we study kinetic stability of the nitrogen cubane inside the fullerene carbon cage. The main identified mechanism of N-8 decomposition is the N-N bond breaking with the further rapid "splitting" into the N-2 molecules that can form the strong covalent bonds with the inner surface of the fullerene cage. It is found that the fullerene cage significantly increases the stability of the N-8 cube, but its lifetime at room temperature is insufficient to observe the endohedral complex N-8@C-60 without the use of extreme temperature conditions. It can be synthesized and investigated only at cryogenic temperatures.
- ПубликацияТолько метаданныеEffect of an Electric Field on a Lithium Ion in a Channel of the Doped Silicene–Graphite System(2020) Galashev, A. E.; Rakhmanova, O. R.; Zaikov, Y. P.; Katin, K. P.; Maslov, M. M.; Катин, Константин Петрович; Маслов, Михаил Михайлович© 2020, Pleiades Publishing, Ltd.Abstract: Using the method of molecular dynamics, the behavior of a lithium ion under the action of a constant electric field in a channel formed by silicene sheets doped with phosphorus is studied. It is shown that if the intersheet space in doped silicene is 0.6 nm, then a single lithium ion can freely enter a channel located on a graphite substrate (with the layers doped with nitrogen) and move along the channel. It is found that doping element phosphorus has a strengthening effect on silicene. Two-dimensional silicon structures are slightly deformed but not destroyed and remain stable during the entire calculation time (100 ps). It is shown that the roughness of silicene sheets and the volume of the intersheet space in the channel do not increase after the lithium ion passes through it, since the crystalline structure of silicene is preserved.
- ПубликацияТолько метаданныеTheoretical and experimental studies aimed at the development of vortex-assisted supramolecular solvent microextraction for determination of nickel in plant samples by FAAS(2020) Elik, A.; Demirbas, A.; Altunay, N.; Maslov, M. M.; Katin, K. P.; Маслов, Михаил Михайлович; Катин, Константин Петрович© 2020 Elsevier B.V.In this study, a miniaturized analytical methodology was introduced by combining vortex-assisted supramolecular–based dispersive liquid–liquid microextraction (VA–SUPRAS-DLLME) with flame atomic absorption spectrometry (FAAS) for determining nickel in plant samples. The SUPRAS (as extraction solvent) was prepared with a mixture of tetra-n-butylammonium hydroxide (Bu4NOH) and 1-undecanol. With both experimental study and computational chemistry approaches, it was shown that the effective extraction of Ni (II) ion was achieved by using Crystal violet as complexing reagent. Factors affecting the extraction efficiency of Ni(II) ion were optimized in detail. Under the optimal microextraction conditions, an enrichment factor of 195 was obtained. In addition, the linearity, the detection limit, and limit of quantification, and matrix effect were 3.3–600 ng mL−1, 1.0 ng mL−1, 3.3 ng mL−1 and 7.8%, respectively. The validation of the method was checked by the analysis of certified reference material, addition-recovery tests, uncertainty measurement, and robustness. Following validation studies, the VA–SUPRAS-DLLME method is successfully applied to the determination of nickel in plant samples with quantitative recoveries.
- ПубликацияТолько метаданныеStability and energy characteristics of extended nitrogen nanotubes: Density functional theory study(2019) Grishakov, K. S.; Katin, K. P.; Gimaldinova, M. A.; Maslov, M. М.; Гришаков, Константин Сергеевич; Катин, Константин Петрович; Гимальдинова, Маргарита Александровна; Маслов, Михаил Михайлович© 2019, Institute for Metals Superplasticity Problems of Russian Academy of Sciences. All rights reserved.We apply the density functional theory with B3LYP exchange-correlation energy functional and the basis set 6-31G(d) to investigate structural, energetic, and electronic properties and stability of extended armchair and zigzag nitrogen nanotubes with a length of ≈ 3 nm. The capping effect, as well as the passivation of nanotubes’ ends by hydrogen atoms and hydroxyl groups on their stability, are studied. According to our calculations, pristine nitrogen nanotubes are unstable. Both capping and passivation of the nanotube ends provide thermodynamic stability only for (3, 0) and (4, 0) zigzag nitrogen nanotubes. Moreover, the calculated frequency spectra of considered systems confirm their dynamic stability. We stress the fact that some extended nitrogen nanotubes are found to be stable under ambient conditions, i. e., in the absence of external factors such as pressure, spatial confinement, etc. The calculated HOMO-LUMO gaps for these stable extended systems are of the order of 4 eV, so they can be assigned to the class of insulators. It is shown that nitrogen nanotubes are able to store a large amount of energy and can be used as a basis for new high-energy-density materials. We expect that the all-nitrogen tubes with the longer effective length of similar chiralities are also should be stable.
- ПубликацияТолько метаданныеNitro Derivatives of Silaprismanes as High-Energy Compounds: Theoretical Study(2019) Kochaev, A. I.; Salem, M. A.; Gimaldinova, M. A.; Katin, K. P.; Ryzhuk, R. V.; Kargin, N. I.; Maslov, M. M.; Гимальдинова, Маргарита Александровна; Катин, Константин Петрович; Рыжук, Роман Валериевич; Каргин, Николай Иванович; Маслов, Михаил МихайловичWe present ab initio study of structures and properties of silaprismanes Si2nH2n and their nitro derivatives Si2nH2n-1NO2 (n = 3-10). We found that silaprismane Si10H9NO2 possesses the highest stability among all studied cages. Attached NO2 group results in weak decreasing of the HOMO-LUMO gap. The smaller prismanes bind with NO2 groups more strongly. The comparison between silaprismanes and carbon prismanes is also discussed.
- ПубликацияТолько метаданныеTemperature influence on process of Ti/Al/Ni/Au contact formation to heterostructure AlGaN/GaN(2019) Shostachenko, S. A.; Porokhonko, Y. A.; Zakharchenko, R. V.; Leshchev, S. V.; Maslov, M. M.; Katin, K. P.; Захарченко, Роман Викторович; Лещев, Сергей Валерьевич; Маслов, Михаил Михайлович; Катин, Константин Петрович© 2019 Published under licence by IOP Publishing Ltd. This paper is dedicated to the experimental investigation of Ohmic contacts to the n+-doped region of the AlGaN/GaN transistor heterostructure based on Ti/Al/Ni/Au metallization. The Al-Ti-N system has been assessed on the basis of available thermodynamic descriptions for binary subsystems. The effect of annealing temperature on the specific resistance of Ohmic contact was studied.
- ПубликацияТолько метаданныеInterlayer Heat Conductivity and Thermal Stability of Distorted Bilayer Graphene(2021) Podlivaev, A. I.; Grishakov, K. S.; Katin, K. P.; Maslov, M. M.; Подливаев, Алексей Игоревич; Гришаков, Константин Сергеевич; Катин, Константин Петрович; Маслов, Михаил Михайлович© 2021, Pleiades Publishing, Inc.The nonorthogonal tight-binding potential is augmented by long-range terms needed for a correct description of the interlayer interaction in bilayer graphene. The molecular dynamics method is used to study the heat transfer between two distorted graphene layers, one of which is initially cooled down to 0 K, and the second one is heated up to 77−7000 K. The characteristic time of the heat transfer depending on the initial temperature of the heated layer and the distortion of the layers is determined. It is demonstrated that both factors significantly affect the intensity of interlayer heat transfer. It is found that, during the characteristic time of temperature equalization, thermally induced defects of various types, including melting, separation of the layers, and tangential shear of the heated layer, can appear in the system. It is shown that the formation of thermally induced defects can result in more than an order of magnitude increase in the rate of interlayer heat transfer.
- ПубликацияТолько метаданныеImproved lithium-ion batteries and their communication with hydrogen power(2021) Galashev, A. Y.; Ivanichkina, K. A.; Vorob'ev, A. S.; Rakhmanova, O. R.; Katin, K. P.; Maslov, M. M.; Катин, Константин Петрович; Маслов, Михаил МихайловичSelf-contained power supplies and energy storage continue to improve. The criteria that determine their development include efficiency, safety, adaptability, modifiability, and a number of others. In this work, one of the ways to improve the lithium-ion battery by using a new negative electrode is considered. The possibilities of applicability of the improved lithium-ion battery are discussed, its advantages and disadvantages in relation to a hydrogen fuel cell and power sources using hydrogen fuel are considered. The study of the functioning of the new anode, the material of which is a two-layer silicene on a nickel substrate, is carried out at the atomic level. Improvement of the anode characteristics can be achieved by subjecting it to the neutron doping. Li-ion batteries with an improved anode will have higher charging capacity and power, faster charging and improved safety. (c) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.