A5041219666- Surface and Thin Film Phenomena
- Magnetic properties of thin films
- Electron and X-Ray Spectroscopy Techniques
- Magnetic Properties and Applications
- Graphene research and applications
- Magnetic Properties of Alloys
- Chalcogenide Semiconductor Thin Films
- MXene and MAX Phase Materials
- Semiconductor materials and interfaces
- 2D Materials and Applications
- Advanced X-ray Imaging Techniques
- Advanced Malware Detection Techniques
- Smart Grid Security and Resilience
- X-ray Spectroscopy and Fluorescence Analysis
- Characterization and Applications of Magnetic Nanoparticles
- Nanofabrication and Lithography Techniques
- Photonic and Optical Devices
- Advanced Electron Microscopy Techniques and Applications
- Iron oxide chemistry and applications
- Icing and De-icing Technologies
- Advanced Surface Polishing Techniques
- Integrated Circuits and Semiconductor Failure Analysis
- Optical Coatings and Gratings
- Surface Modification and Superhydrophobicity
- Metallic Glasses and Amorphous Alloys
ETH Zurich
2020-2022
Institute of Physics of the Slovak Academy of Sciences
2014-2020
Slovak Academy of Sciences
2014-2020
Institute of Chemistry of the Slovak Academy of Sciences
2014-2020
Sumy State University
2010-2019
A.P.E. Research (Italy)
2017-2019
AREA Science Park
2019
Czech Academy of Sciences, Institute of Physics
2017
Nanocrystalline ZnO films were deposited onto glass substrates in the temperature range of 473–673 K using pulsed spray pyrolysis. The structural, substructural, and optical properties investigated by means X‐ray diffraction analysis, Raman scattering, Fourier transform infrared (FTIR) spectroscopy. effect substrate ( T s ) on coherent scattering domain (CSD) sizes L , microstrains ϵ microstress σ grades, average density dislocations ρ estimated through broadening lines Cauchy Gauss...
Few-layer MoS2 films stay at the forefront of current research two-dimensional materials. At present, continuous are prepared by chemical vapor deposition (CVD) techniques. Herein, we present a cost-effective fabrication large-area spatially uniform few-layer flakes using modified Langmuir-Schaefer technique. The compression liquid-phase exfoliated on water subphase was used to form layer, which subsequently transferred onto submerged substrate removing subphase. After vacuum annealing,...
Recent advances in the liquid-phase exfoliation enabled large-scale production of two-dimensional (2D) materials, including few-layer graphene and transition metal dichalcogenides. The exfoliated flakes 2D materials allow cost-effective deposition continuous films for various applications ranging from optoelectronics to lubrication technology. self-assembly on water subphase subsequent transfer such a Langmuir film onto solid substrate offers an unprecedented layer quality terms spatial...
We present the numerical optimization and technological development progress of x-ray optics based on asymmetric germanium crystals. show results several basic calculations diffraction properties crystal monochromators an analyzer-based imaging method for various asymmetry factors using energy range from 8 to 20 keV. The important parameter highly as image magnifiers or compressors is surface quality. have applied finishing methods, including advanced nanomachining single-point diamond...
Graphene nanofilms were deposited onto oxidized Si by modified Langmuir-Schaefer technique with the submerged substrate from solution of few-layer graphene (FLG) which was obtained sonication expanded milled graphite. The films characterized SEM, AFM, HRTEM, XRD and Raman spectroscopy. average FLG flake thickness lateral dimension are 5 300nm, respectively. intensity D vs. G bands suggests a low defect density in our samples. decorated Pd nanoparticles (6 – 7nm) using drop casting...
We simulate the electronic system of ejected electrons arising when a tip, positioned few 10 nm away from surface, is operated in field emission regime. find that, by repeated quantum reflections (“quantum skipping”), produced at nanoscale primary site are able to reach macroscopic environment surrounding tip-surface region. observe hallmark skipping an energy filtered experiment that detects spin electrons.
Electron spectroscopy proves to be a handy tool in material science. Combination of electron and scanning probe microscopy is possible through Scanning Field Emission Microscopy (SFEM), where metallic positioned close the surface used as an source. However, using this not too much technologically demanding technique, it looks like compromise between lateral resolution spectroscopic clarity must considered. Here, we demonstrate, experimental simulation data, that information can understood...
In this study, we use Scanning Field Emission Microscopy (SFEM) combined with a miniature electron energy analyzer known as Bessel box to measure spectra emitted from sample. Previous studies using SFEM have revealed that the work function (ϕ) of material under study has significant role play in formation signal intensity. Hence, order understand ϕ greater detail, sample W(110) (ϕ = 5.25 eV) and Cs deposited on ≈ 1.7 were investigated. STM images show covered surface speckled appearance...
Scanning Field Emission Microscopy with Polarization Analysis was recently introduced to detect the spin polarization of electrons excited in field emission regime Tunnelling Microscopy. In this work, a miniature electron energy analyzer, called Bessel Box, is implemented into Microscope setup. It used filter according their before they reach detector. The Box allows, e.g., elastically scattered be compared obtained full spectrum. We use technology measure local in-plane signal as function...
Advanced X-ray imaging techniques of weakly absorbing structures require an increase the sensitivity to small refractive angles considering that they are based more on coherent phase contrast than absorption one. Simulations diffraction properties germanium (Ge) crystal monochromators and analyzer (ABI) method were performed for various asymmetry factors several lattice plane orientations using energy range from 8 keV 20 keV. Using appropriate phase/amplitude retrieval one can recover...
The optical, magneto-optical properties and structural phase state were researched in the film systems based on Cr, Fe.