1. Department of Physics
2. University of Patras
3. 26504 Patras, Greece
4. Institute of Chemical Engineering Sciences (ICE-HT)
5. Foundation for Research and Technology-Hellas (FORTH)
6. Regional Centre of Advanced Technologies & Materials
7. Departments of Physical Chemistry and Experimental Physics
8. Faculty of Science
9. Palacky University
10. 771 46 Olomouc, Czech Republic
11. Department of Materials Science and Engineering
12. University of Ioannina
13. Ioannina, Greece
14. Patras 26504, Greece
15. Department of Materials Science