1. Biomolecular and Organic Electronics, Department of Physics, Chemistry and Biology, Linköping University, Linköping, 58183, Sweden
2. Epishine AB, Wahlbecksgatan 25, Linköping, 58213, Sweden
3. Instituto de Ciencia de Materiales de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain