1. Czech Advanced Technology and Research Institute, Regional Centre of Advanced Technologies and Materials Department, Palacký University Olomouc, Šlechtitelů 27, Olomouc 78371, Czech Republic
2. CEET, Nanotechnology Centre, VŠB-Technical University of Ostrava, 17. Listopadu 2172/15, Ostrava-Poruba 708 00, Czech Republic
3. Department of Chemistry and NIS Centre, University of Turin, Turin 10125, Italy