Mgr. Oleksandr Romanyuk, Ph.D.

III-Vs
Machine-learning for spectra analysis.
Nanoparticles
Nanopolymers
XPS

Scientific topic

New methodological approaches are being developed to address the current limitations in quantitative analysis of materials using photoelectron spectroscopy. These advancements include the application of femtosecond lasers for depth-profiling by XPS, preparation and modification of hybrid core-shell nanoparticles, and implementation of machine learning algorithms, enabling more accurate deconvolution of XPS spectra.

I work at the Institute of Physics of the Czech Academy of Sciences.

Equipment

AXIS Supra X-ray photoelectron spectrometer equipped with AlKα and AgLα X-ray sources, Ar cluster ion beam sputtering for depth profiling, laser-ablation XPS, in-situ annealing, AR XPS, UPS, ISS, REELS. Collaboration with other laboratories in FZU: SEM, AFM, femto-second lasers, deposition by CVD, MOVPE, MBE, ALD, magnetron.

Projects

2018-2021
Formation of heterovalent interfaces: A combined photoemission and ab initio DFT study of GaP/Si heterostructures (GaP-Si), The Czech Science Foundation

Areas of expertise

Condensed matter physics
Condensed matter physics (including formerly solid state physics)
Electronic Properties of Materials, Surfaces, Interfaces, Nanostructures, Etc.
Surface physics