1. Institute of Polymer Science Johannes Kepler University Linz Altenbergerstraße 69 4040 Linz Austria
2. Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry Johannes Kepler University Linz Altenbergerstraße 69 4040 Linz Austria
3. Department of Chemical Engineering, Electrochemistry, Corrosion and Energetic Valorization Laboratory A. MIRA University, Targa Ouzemmour 06000 Bejaia Algeria
4. Czech Metrology Institute Okruzni 31 638 00 Brno Czech Republic