1. Institute
of Physics, University of Mainz, Staudingerweg 7, 55128 Mainz, Germany
2. Graduate
School of Material Science in Mainz, University of Mainz, Staudingerweg
9, 55128 Mainz, Germany
3. ICFO-Institut
de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain
4. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
5. Carbon Materials Innovation Center (CMIC), BASF SE, 67056 Ludwigshafen, Germany