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Study of Nanoscale Profiling Modes of GaAs Epitaxial Structures by Focused Ion Beams
Pleiades Publishing Ltd - Tập 13 - Trang 26-33 - 2018
S. A. Lisitsyn, S. V. Balakirev, V. I. Avilov, A. S. Kolomiytsev, V. S. Klimin, M. S. Solodovnik, B. G. Konoplev, O. A. Ageev
The nanoscale profiling modes of epitaxial GaAs layers are experimentally studied through focused ion beams (FIB). The regularities of the influence of ion current and single FIB exposure time on the geometric characteristics of the forming nanosized profile and the etching rate of the surface of GaAs epitaxial layers are determined. It is established that, within the range of FIB modes used, the ...... hiện toàn bộ
Synthesis of LiFePO4 nanoplatelets as cathode materials for Li-ion batteries
Pleiades Publishing Ltd - Tập 11 - Trang 757-760 - 2017
R. R. Kapaev, S. A. Novikova, T. L. Kulova, A. M. Skundin, A. B. Yaroslavtsev
Lithium iron phosphate with plateletlike morphology (length of 200 nm and thickness of 15–25 nm) was obtained using the solvothermal method. The resulting particles have the smallest dimension along the 1D channels, which are paths of Li+ ion migration. The discharge capacity of composite based on synthesized LiFePO4 and carbon was equal to 160 mAh/g at a current density of 20 mA/g and 80 mAh/g at...... hiện toàn bộ
Self-assembly of nanoparticles in the microvolume of colloidal solution: Physics, modeling, and experiment
Pleiades Publishing Ltd - - 2013
П. В. Лебедев-Степанов, Р. М. Кадушников, S. P. Molchanov, А. А. Иванов, V. P. Mitrokhin, K. O. Vlasov, N. I. Rubin, G. A. Yurasik, V. G. Nazarov, М. В. Алфимов
Silica nanoparticles with covalently attached fluorophore as selective analyte-responsive supramolecular chemoreceptors
Pleiades Publishing Ltd - Tập 7 - Trang 6-14 - 2012
V. A. Sazhnikov, A. M. Muzafarov, V. N. Kopysov, V. M. Aristarkhov, Yu. N. Kononevich, I. B. Meshkov, N. V. Voronina, M. V. Alfimov
Silica core-shell nanoparticles with SiO2 cores and an alkoxysilyl derivative of dibenzoylmethanatoboron difluoride (A-DBMBF2) fluorophore covalently attached to the core surface have been synthesized. It is shown that these nanoparticles can be used as the basis of selective sensor materials capable of detecting benzene, toluene, and xylene vapors. As benzene or its methyl derivatives are adsorbe...... hiện toàn bộ
Impact of metallic and nonmetallic nanopowders on the combustion characteristics of energetic materials based on ammonium nitrate
Pleiades Publishing Ltd - Tập 9 - Trang 541-548 - 2014
V. N. Popok, N. V. Bychin
Results of an investigation into the impact of metallic and nonmetallic nanodispersed powders on the parameters of combustion of mixed energetic materials (EMs) based on ammonium nitrate are presented and compared with micropowders. The catalytic activity ranks of the powders are plotted showing their effect on the combustion characteristics of nitrate materials. It is shown that the high efficien...... hiện toàn bộ
Using nanosized, homogeneous, and heterogeneous catalytic systems in organic synthesis: changing the structure of active center in chemical reactions in solution
Pleiades Publishing Ltd - - 2010
Valentine P. Ananikov, I. P. Beletskaya
Complex effects of selenium-arabinogalactan nanocomposite on both phytopathogen Clavibacter michiganensis subsp. sepedonicus and potato plants
Pleiades Publishing Ltd - Tập 10 - Trang 484-491 - 2015
A. V. Papkina, A. I. Perfileva, M. A. Zhivet’yev, G. B. Borovskii, I. A. Graskova, I. V. Klimenkov, M. V. Lesnichaya, B. G. Sukhov, B. A. Trofimov
A novel selenium nanobiocomposite consisting of X-ray amorphous nanoparticles of red elemental selenium (average size ∼67 nm) uniformly encapsulated into arabinogalactan macromolecules has been synthesized. The effect of this nanobiocomposite and its precursors (pure arabinogalactan and selenium dioxide) on the viability of a phytopathogenic bacterium Clavibacter michiganensis subsp. sepedonicus (...... hiện toàn bộ
The use of ion irradiation for converting superconducting thin-film NbN into niobium oxide Nb2O5
Pleiades Publishing Ltd - Tập 10 - Trang 530-536 - 2015
B. A. Gurovich, K. E. Prihod’ko, M. A. Tarkhov, E. A. Kuleshova, D. A. Komarov, V. L. Stolyarov, E. D. Ol’shanskii, B. V. Goncharov, D. A. Goncharova, L. V. Kutuzov, A. G. Domantovskii, Z. V. Lavrukhina, M. M. Dement’eva
It is shown experimentally that the use of ion irradiation allows one to convert superconducting thin-film niobium nitride into dielectric niobium oxide in a controllable manner. The conversion of NbN into Nb2O5 throughout the entire thickness of the film is demonstrated via transmission electron microscopy and layer-by-layer XPS analysis. This conversion is followed by a corresponding increase in...... hiện toàn bộ
Microstructure of interfaces in heterosystems
Pleiades Publishing Ltd - Tập 8 - Trang 317-327 - 2013
A. L. Vasiliev, V. V. Roddatis, M. Yu. Presnyakov, A. S. Orekhov, S. Lopatin, V. I. Bondarenko, M. V. Koval’chuk
The results of investigations into interfaces and thin films in heterostructures with the use of spherical-aberration-corrected transmission and scanning transmission electron microscopy (STEM) by applying supersensitive energy-dispersion X-ray microanalysis are presented. Using examples of heterostructures of various materials (Si/Ge, InGaAs/InAs, AlN/GaN, YBCO on various substrates and LuFe(Co)O...... hiện toàn bộ
Evaluation of the enthalpy of formation of carbon nanotubes and their phase diagram
Pleiades Publishing Ltd - Tập 10 - Trang 689-695 - 2015
S. A. Gubin, I. V. Maklashova, E. I. Zakatilova
The enthalpy of formation of single-wall carbon nanotubes (SWCNTs) and multiwall carbon nanotubes (MWCNTs) of different geometric sizes is evaluated. The region of phase stability of carbon nanotubes (CNTs) of different geometric shapes (with various lengths, inner radii, and numbers of carbon layers) is determined based on the approximate equation of state of nanocarbon. The estimates do not cont...... hiện toàn bộ
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