1. Department of Materials Science & Engineering, University of Ioannina, GR-45110 Ioannina, Greece
2. Printed Electronic Devices of Things P.C. (PDoT), Makrinitsis 122, GR-38333 Volos, Greece
3. Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
4. Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
5. Physical Chemistry of Polymeric Materials, Technische Universität Dresden, 01069 Dresden, Germany
6. Cluster of Excellence Centre for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
7. Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramon y Cajal, 28040 Madrid, Spain