A5085798647- Graphene research and applications
- Boron and Carbon Nanomaterials Research
- Carbon Nanotubes in Composites
- Diamond and Carbon-based Materials Research
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Fullerene Chemistry and Applications
- Nanowire Synthesis and Applications
- Aluminum Alloys Composites Properties
- Quantum and electron transport phenomena
- High-pressure geophysics and materials
- Graphene and Nanomaterials Applications
- Semiconductor materials and interfaces
- Advanced ceramic materials synthesis
- Magnetic properties of thin films
- Topological Materials and Phenomena
- Force Microscopy Techniques and Applications
- Advancements in Semiconductor Devices and Circuit Design
- Metal and Thin Film Mechanics
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Surface and Thin Film Phenomena
- Hydrogen Storage and Materials
- ZnO doping and properties
- Advanced Photocatalysis Techniques
National University of Science and Technology
2015-2024
Technological Institute for Superhard and Novel Carbon Materials
2015-2024
Moscow Institute of Physics and Technology
2013-2023
Institute of Biochemical Physics NM Emanuel
2010-2022
Moscow Power Engineering Institute
2020-2022
Moscow Aviation Institute
2020-2022
Siberian Branch of the Russian Academy of Sciences
2008-2022
Institute of Semiconductor Physics
2022
Institute of Physics and Technology
2021
National Institutes for Quantum Science and Technology
2016-2020
Hexagonal boron nitride (h-BN), a layered material similar to graphite, is promising dielectric. Monolayer h-BN, so-called "white graphene", has been isolated from bulk BN and could be useful as complementary two-dimensional dielectric substrate for graphene electronics. Here we report the large area synthesis of h-BN films consisting two five atomic layers, using chemical vapor deposition. These show optical energy band gap 5.5 eV are highly transparent over broad wavelength range. The...
One of the current priorities in physics and chemistry graphene is study its semiconducting derivatives. This review summarizes state art this area research. The structure electronic properties materials as such ribbons, partially hydrogenated fluorinated graphene, graphane, fluorographene, diamane are discussed detail.
Engineering of the optical, electronic, and magnetic properties hexagonal boron nitride (h-BN) nanomaterials via oxygen doping functionalization has been envisaged in theory. However, it is still unclear as to what extent these can be altered using such methodology because lack significant experimental progress systematic theoretical investigations. Therefore, here, comprehensive predictions verified by solid confirmations are provided, which unambiguously answer this long-standing question....
Two-dimensional transition metal carbides, that is, MXenes and especially Ti3C2, attract attention due to their excellent combination of properties. Ti3C2 nanosheets could be the material choice for future flexible electronics, energy storage, electromechanical nanodevices. There has been limited information available on mechanical properties which is essential utilization. We have fabricated studied using direct in situ tensile tests inside a transmission electron microscope, quantitative...
We explore how a few-layer graphene can undergo phase transformation into thin diamond film under reduced or no pressure, if the process is facilitated by hydrogenation of surfaces. Such "chemically induced transition" inherently nanoscale phenomenon, when surface conditions directly affect thermodynamics, and transition pressure depends greatly on thickness. For first time we obtain, ab initio computations Gibbs free energy, diagram (P, T, h) quasi-two-dimensional carbon–diamond versus...
Electrocatalytic hydrogen evolution reaction (HER) in alkaline solution is hindered by its sluggish kinetics toward water dissociation. Nickel-based catalysts, as low-cost and effective candidates, show great potentials to replace platinum (Pt)-based materials the media. The main challenge regarding this type of catalysts their relatively poor durability. In work, we conceive construct a charge-polarized carbon layer derived from quantum dots (CQDs) on Ni3N nanostructure (Ni3N@CQDs)...
Construction of cellular architectures has been expected to enhance materials' mechanical tolerance and stimulate broaden their efficient utilizations in many potential fields. However, hitherto, there have rather scarce developments boron nitride (BN)-type because well-known difficulties the syntheses BN-based structures. Herein, cellular-network multifunctional foams made interconnective nanotubular hexagonal BN (h-BN) are developed using carbothermal reduction-assisted situ chemical vapor...
Among the carbon allotropes, carbyne chains appear outstandingly accessible for sorption and very light. Hydrogen adsorption on calcium-decorated chain was studied using ab initio density functional calculations. The estimation of surface area gives value four times larger than that graphene, which makes attractive as a storage scaffold medium. Furthermore, calculations show Ca-decorated can adsorb up to 6 H2 molecules per Ca atom with binding energy ∼0.2 eV, desirable reversible storage,...
The atomic structure and physical properties of few-layered ⟨111⟩ oriented diamond nanocrystals (diamanes), covered by hydrogen atoms from both sides, are studied using electronic band calculations. It was shown that energy stability linearly increases upon increasing the thickness proposed structures. All 2D carbon films display direct dielectric gaps with nonlinear quantum confinement response thickness. Elastic diamanes reveal complex dependence number layers. theoretical results were...
We report theoretical analysis of the electronic flexoelectric effect associated with nanostructures sp2 carbon (curved graphene). Through density functional theory calculations, we establish universality linear dependence atomic dipole moments on local curvature in various networks (carbon nanotubes, fullerenes high and low symmetry, nanocones). The usefulness such is possibility to extend any systems deformations respect their properties. This result exemplified by exploring nanocones that...
Carbon nanotubes have a helical structure wherein the chirality determines whether they are metallic or semiconducting. Using in situ transmission electron microscopy, we applied heating and mechanical strain to alter local thereby control electronic properties of individual single-wall carbon nanotubes. A transition trend toward larger chiral angle region was observed explained terms orientation-dependent dislocation formation energy. controlled metal-to-semiconductor realized create...
Abstract Van der Waals (vdWs) heterostructures based on low dimensional semiconducting materials offer tremendous opportunities in investigating next generation electronic and optoelectronic devices. Careful design combinations of different crystal structures their band alignment engineering such architectures are crucial for realizing specialized functionality preferable performance. Here, a polarized light sensitive photodetector with high efficiency ultrafast response speed hybrid MoS 2...
We investigate the properties of potentially stiffest quasi-2-D films with lonsdaleite structure. Using a combination ab initio and empirical potential approaches, we analyze elastic in both inelastic regimes compare them graphene diamond films. review possible fabrication methods using pure nanoscale "bottom-up" paradigm: by connecting carbon layers multilayered graphene. propose realization this method two ways: applying direct pressure recently proposed chemically induced phase...