1. Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
2. Silesian Center of Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
3. Institute of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland