Speaker
Dr
Zoran Jovanović
(1 Laboratory of Physics, Vinca Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, Belgrade, Serbia)
Description
In the present study the effects of swift heavy ion (SHI) irradiation on the surface and structural properties of potassium-doped glassy carbon has been examined. The glassy carbon samples have been irradiated with 167 MeV Xe26+ ions to fluences of 6×1011, 1×1012, 6×1012, 1×1013, 3×1013, 6×1013, and 1×1014 ions/cm2. The X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and X-ray diffraction (XRD) techniques have been used for analysis of physicochemical properties.
The XPS analysis revealed the changes of the atomic concentration of the surface layers – decrease in the carbon and increase in potassium and oxygen atomic concentration. Also, the fluence-dependent redistribution of the surface functional groups and sp3 character of the carbon-carbon bonds has been observed. The Raman spectroscopy analysis, performed by using different excitation wavelengths, revealed fluence-dependent structural changes. Additionally, the cross-sectional Raman mapping studies have shown depth evolution of structural changes. XRD analysis revealed the changes in the crystallinity and interlayer spacing of irradiated samples.
Primary author
Dr
Zoran Jovanović
(1 Laboratory of Physics, Vinca Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, Belgrade, Serbia)
Co-authors
Dr
Andrzej Olejniczak
(2 Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, 141980, Russia; 3 Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland)
Dr
Danica Bajuk-Bogdanović
(4 Faculty of Physical Chemistry, University of Belgrade, P.O. Box 47, 11158 Belgrade, Serbia)
Prof.
Ivanka Holclajtner-Antunović
(4 Faculty of Physical Chemistry, University of Belgrade, P.O. Box 47, 11158 Belgrade, Serbia)
Mr
Vitalii Zagonenko
(2 Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, 141980, Russia)
