1. Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research Institute Palacký University Křížkovského 511/8 Olomouc 77900 Czech Republic
2. Nanotechnology Centre Centre of Energy and Environmental Technologies VŠB‐Technical University of Ostrava 17. listopadu 2172/15 Ostrava‐Poruba 70800 Czech Republic
3. Department of Physical Chemistry Faculty of Science Palacký University Olomouc 17. listopadu 1192/12 Olomouc 77900 Czech Republic
4. Department of Experimental Physics Faculty of Science Palacký University Olomouc 17. listopadu 1192/12 Olomouc 77900 Czech Republic