1. Organic Semiconductor CentreSUPASchool of Physics and AstronomyUniversity of St. Andrews St. Andrews KY16 9SS UK
2. Department ChemiePaderborn University Warburger Straße 100 Paderborn 33098 Germany
3. Centre de Recherche Paul PascalCNRS & Université de Bordeaux 115, av. Schweitzer Pessac 33600 France
4. Centre for NanobiophotonicsDepartment of ChemistryUniversity of Cologne Greinstr. 4–6 Köln 50939 Germany
5. Kurt‐Schwabe‐Institut für Mess‐ und Sensortechnik Meinsberg e.V. Kurt‐Schwabe‐Str. 4 Waldheim 04736 Germany