1. Laboratory of Organic Electronics Department of Science and Technology Linköping University Norrköping SE‐601 74 Sweden
2. Bioelectronics Materials and Devices Laboratory Brno University of Technology Purkynova 123 Brno 61200 Czech Republic
3. RISE Research Institutes of Sweden, Digital Systems Smart Hardware Bio‐ and Organic Electronics Bredgatan 33 Norrköping SE‐602 21 Sweden
4. Wallenberg Wood Science Center Linköping University Norrköping SE‐601 74 Sweden