1. Light Technology Institute, Karlsruhe Institute of Technology, Engesserstr. 13, 76131 Karlsruhe, Germany
2. InnovationLab, Speyererstr. 4, 69115 Heidelberg, Germany
3. Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, 69120 Heidelberg, Germany
4. Max Planck Institute for Polymer Research, Ackermannweg 10, 5128 Mainz, Germany
5. Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
6. Centre for
Advanced Materials, Ruprecht-Karls-Universität Heidelberg, 69120 Heidelberg, Germany