1. Department of Chemistry and Center for NanoScience (CeNS); University of Munich (LMU); Butenandtstr. 11 81377 Munich Germany
2. Lehrstuhl für Funktionelle Materialien; Physik-Department; TU München; James-Franck-Str. 1 85748 Garching Germany
3. Macromolecular Chemistry I; University of Bayreuth; University Str-30 Germany
4. School of Electrical and Electronic Engineering; Newcastle University; Merz Court NE1 7RU Newcastle upon Tyne UK