1. Institute
of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
2. Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
3. Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland