1. Department of Molecular Physics Faculty of Chemistry Lodz University of Technology Zeromskiego 116 Lodz 90‐924 Poland
2. Institute of Materials Science and Engineering Faculty of Mechanical Engineering Lodz University of Technology Stefanowskiego 1/15 Lodz 90‐924 Poland
3. Institute of Electrical Engineering Systems Faculty of Electrical Engineering Electronics, Computer and Control Engineering Lodz University of Technology Stefanowskiego 18 Lodz 90‐924 Poland
4. Department of Experimental Physics Faculty of Fundamental Problems of Technology Wroclaw University of Science and Technology Wybrzeze Wyspianskiego 27 Wroclaw 50‐370 Poland
5. Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany