1. Institute of Organic Chemistry (IOC) Karlsruhe Institute of Technology (KIT) Kaiserstrasse 12 76131 Karlsruhe Germany
2. Organic Semiconductor Centre, EaStCHEM School of Chemistry University of St Andrews St Andrews Fife KY16 9ST UK
3. Organic Semiconductor Centre, SUPA School of Physics and Astronomy University of St Andrews St Andrews Fife KY16 9SS UK
4. CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 University of Rennes Rennes F‐35000 France
5. Department of Chemistry 00014 University of Helsinki P. O. Box 55 (A. I. Virtasen aukio 1) Helsinki Finland
6. Institute of Nanotechnology (INT) and Karlsruhe Nano‐Micro Facility (KNMFi) Karlsruhe Institute of Technology (KIT) Kaiserstrasse 12 76131 Karlsruhe Germany
7. Institute of Biological and Chemical Systems (IBCS‐FMS) Karlsruhe Institute of Technology (KIT) Kaiserstrasse 12 76131 Karlsruhe Germany