RESEARCH INTERESTS |
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Spectroscopic
studies of solids using synchrotron radiation (semiconductors, insulators,
glasses & glass ceramics, solid biological samples). ·
Determination
of the materials nanostructure (bondlengths, bond angles and coordination
numbers) with extended X-ray absorption fine structure spectroscopy (EXAFS). ·
Study of
materials electronic structure with near edge x-ray absorption fine structure
spectroscopy (defect and conduction band density of states) (ΝEXAFS). ·
Materials elemental
analysis and mapping with X-ray fluorescence spectroscopy (ΧRF). ·
Quantitative
analysis and
determination of the oxidation state with X-ray photoelectron spectroscopy (XPS). ·
Determination
of the size and spatial
distribution of nanoparticles using Small angle X-ray scattering (SAXS). ·
Application
EXAFS, NEXAFS and XRF with high lateral resolution (1.5-5μm) using focused synchrotron radiation
beam. Determination of the local
variations of the valence and the nanostructure in inhomogeneous samples such
as microelectronic devices, glass ceramics and biological samples. The experiments with synchrotron radiation are
conducted in synchrotron radiation facilities in BESSY, HASYLAB, SLS, ELETTRA, ESRF |
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Materials
characterization using Raman spectroscopy. ·
Study of
semiconductors for the determination of symmetry, crystalline quality and
strain. ·
Study of
biological samples for the determination of the amino- acid content. Study of
biominerals. |
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Studied
materials. ·
Wide band
gap semiconductors GaN, AlN, ·
Si-nitrides:
SiNx and SixOyNz ·
Glassy and glass
ceramic materials: vitrified and stabilized industrial wastes. ·
Nano-porous adsorbents of toxic elements
from drinking water. ·
Nanoparticles
of Fe and Mn oxides. ·
Solid
biological samples (illness-related
variations of chemical composition, distribution and bonding environment of
metallic elements in nails and hair). Biominerals and natural pigments in
crustacea. ·
Vertebrate fossils |