1. Department of Chemical Science, Ariel University, 40700 Ariel, Israel
2. Research and Development Centre for Renewable Energy, New Technologies Research Centre (NTC), University of West Bohemia, Univerzitni, 8/2732, 301 00 Pilsen, Czech Republic
3. Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovak Republic