1. Department of Optoelectronics, Silesian University of Technology, Akademicka 2, 44-100 Gliwice, Poland
2. Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
3. Institute of Electronic Materials Technology (ITME), Wólczyńska 133, 01-919 Warsaw, Poland