1. Department of Spectroscopy of Excited States; Institute of Low Temperature and Structure Research; Polish Academy of Science; Okolna 2 50-422 Wrocław Poland
2. Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Straße 11 12489 Berlin Germany
3. Advanced Materials Engineering and Modelling Group; Chemistry Department; Wroclaw University of Science and Technology; Wybrzeze Wyspianskiego 27 50-370 Wrocław Poland
4. Centre of Polymer and Carbon Materials; Polish Academy of Sciences; M. Curie-Sklodowskiej 34 41-819 Zabrze Poland
5. Wroclaw Research Centre; EIT+; Stablowicka 147 54-066 Wrocław Poland