A5014052698- 2D Materials and Applications
- Graphene research and applications
- Molecular Junctions and Nanostructures
- Surface and Thin Film Phenomena
- Chalcogenide Semiconductor Thin Films
- Quantum and electron transport phenomena
- Fault Detection and Control Systems
- Transition Metal Oxide Nanomaterials
- Topological Materials and Phenomena
- Mineral Processing and Grinding
- Organic and Molecular Conductors Research
- Advanced Memory and Neural Computing
- Force Microscopy Techniques and Applications
- Machine Learning in Materials Science
- Concrete and Cement Materials Research
- Photonic Crystals and Applications
- Conducting polymers and applications
- Iron-based superconductors research
- Ga2O3 and related materials
- Synthesis and Properties of Aromatic Compounds
- Spectroscopy Techniques in Biomedical and Chemical Research
- Semiconductor materials and devices
- Electrostatics and Colloid Interactions
- Advanced Electron Microscopy Techniques and Applications
- Advanced Thermodynamics and Statistical Mechanics
Ufa State Petroleum Technological University
2025
University of Łódź
2018-2024
Yuriy Fedkovych Chernivtsi National University
2017
Measurements of optical activity can be readily performed in transparent matter by means a rotation transmitted light polarization. In the case opaque bulk materials, such measurements cannot performed, making it difficult to assess possible chiral properties. this work, we present full angular polarization dependencies Raman modes 1T-TaS2, which has recently been suggested have properties after pulsed laser excitation. We found that mechanical sample does not alter polarization-resolved...
Abstract The influence of intrinsic defects 1T-TaS 2 on charge density waves (CDWs) is studied using scanning tunneling microscopy and spectroscopy (STM, STS), angle-resolved photoelectron (ARPES), functional theory (DFT). We identify several types structural find that most have a local character limited to single CDW site, with exception which effectively behaves as dopant, leading band-bending affecting multiple neighboring sites. While only one type defect can be observed by STM...
One of the trends in modern construction is use highly dispersed additives to produce Ultra-High Performance Concrete terms both strength and durability, especially for high-rise projects. The durability concrete determined by two main parameters – reactivity cement stone components relation an aggressive environment permeability environment. article discusses finely calcium carbonate as additive that increases general, sulfate resistance particular. mechanism action based on a combination...
The electronic structure of $1T\ensuremath{-}\mathrm{Ta}{\mathrm{S}}_{2}$ showing a metal-insulator transition and sequence different charge density wave (CDW) transformations was discussed in the frame variable temperature angle-resolved photoelectron spectroscopy (ARPES), scanning tunneling (STS), functional theory (DFT) calculations. For commensurate phase (CCDW) Mott gap estimated to be 0.4 eV energy gaps...
We propose that the crystallinity of two-dimensional (2D) materials is a crucial factor for achieving highly effective work function (WF) modification. A crystalline 2D MoO3 monolayer enhances substrate WF up to 6.4 eV thicknesses as low 0.7 nm. Such high makes great candidate tuning properties anode and future design organic electronic devices, where accurate evaluation crucial. provide detailed investigation α-MoO3 directly grown on ordered pyrolytic graphite, by means Kelvin probe force...
Abstract We report on van der Waals epitaxy of two-dimensional (2D) molybdenum trioxide (MoO 3− x ) with monolayer thickness directly grown highly oriented pyrolytic graphite by thermal evaporation under ultrahigh vacuum. The chemical composition, electronic and crystalline lattice structures the mono-and few-layer MoO sheets are analysed. Using scanning tunnelling microscopy spectroscopy, we investigate properties as a function number layers measure apparent energy gap to be 0.4 eV for...
Molybdenum trioxide shows many attractive properties, such as a wide electronic band gap and high relative permittivity. Monolayers of this material are particularly important, they offer new avenues in optoelectronic devices, e.g., to alter the properties graphene electrodes. Nanoscale electrical characterization is essential for potential applications monolayer molybdenum trioxide. We present conductive atomic force microscopy study an epitaxially grown 2D oxide layer on graphene-like...
1T-TaS2 is a material that belongs to the family of transition metal dichalcogenides and features rich phase diagram including different charge density wave states. So far, most techniques used study this focus on either very local properties atomic scale or use global measurements whole sample like electrical resistance. Here, we report influence micrometer laser illumination electric bulk sample. Thermoelectric effects are found be responsible for large response illumination. This effect...
Structural superlubricity is a special frictionless contact in which two crystals are incommensurate arrangement such that relative in-plane translation associated with vanishing energy barrier crossing. So far, it has been realized multilayer graphene and other van der Waals two-dimensional hexagonal or triangular crystalline symmetries, leading to isotropic contacts. Directional structural superlubricity, date unrealized systems, possible when the reciprocal lattices of coincide one...
Structural superlubricity is a special frictionless contact in which two crystals are incommensurate arrangement such that relative in-plane translation associated with vanishing energy barrier crossing. So far, it has been realized multilayer graphene and other van der Waals (2D hexagonal or triangular crystalline symmetries, leading to isotropic contacts. Directional structural superlubricity, date unrealized 2D systems, possible when the reciprocal lattices of coincide one direction only....
Incommensurate heterostructures of two-dimensional (2D) materials, despite their attractive electronic behaviour, are challenging to simulate because the absence translation symmetry. Experimental investigations these structures often employ scanning tunneling microscopy (STM), however there is date no comprehensive theory and predict a STM image in such systems. In this paper, we present new approach images arbitrary van der Waals (vdW) heterostructures, using moir\'e plane wave expansion...
Scanning probe microscopy (SPM) is ubiquitous in nanoscale science allowing the observation of features real space down to angstrom resolution. The scanning nature SPM, wherein a sharp tip rasters surface during which physical setpoint maintained via control feedback loop, often implies that image subject drift effects, leading distortion resulting image. While there are \emph{in-operando} methods compensate for drift, correcting residual linear obtained images neglected. In this paper, we...
Phase transitions are accompanied by sudden changes in physical properties of the material, which opens possibilities for a wide range applications. Therefore, an in-depth understanding their dynamics is crucial, especially novel, developing field van der Waals materials. We present method to spatially resolve states during metal-insulator phase transition tantalum disulfide. Unlike other techniques, it allows study influence microscopic laser illumination on whole, macroscopic sample. The...
Graphene/1T-TaS2 hybrid structures were measured using the Raman spectroscopy at room temperature.Spatially resolved maps show that region for which an effective graphene G band shift was observed correlates well with tantalum disulfide flake, suggesting a change of carrier concentration in induced by 1T-TaS2.This effect only sample exfoliated vacuum, signifies necessity preventing from oxidation during preparation.