1. Department of Materials and Environmental Chemistry Stockholm University Svante Arrhenius väg 16C SE-10691 Stockholm Sweden
2. Department of Science and Technology Laboratory of Organic Electronics Linköping University SE-60174 Norrköping Sweden
3. The Organic Photonics and Electronics Group Umeå University SE-90187 Umeå Sweden
4. Department of Physics and Astronomy Uppsala University Box 516 SE-751 20 Uppsala Sweden
5. The QUILL Research Centre and School of Chemistry and Chemical Engineering The Queen's University of Belfast Belfast Northern Ireland BT9 5AG UK
6. Intelligent Advanced Materials (iAM) Department of Biological and Chemical Engineering and iNANO Aarhus University 8000 Aarhus C Denmark
7. Department of Chemistry & Biochemistry The University of Alabama Tuscaloosa AL 35487 USA