1. Johannes Kepler University Linz; Department of Soft Matter Physics; Altenberger Str. Nr. 69, 4040, Linz Austria
2. Johannes Kepler University Linz; Institute of Polymer Science; Altenberger Str. Nr. 69, 4040, Linz Austria
3. Joanneum Research Forschungsgesellschaft mbH; Department of Materials; Franz-Pichler Str. Nr. 30, 8160, Weiz Austria
4. Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Piazza Leonardo da Vinci 32, 20133; Milano Italy
5. Johannes Kepler University Linz; Department of Physical Chemistry, Linz Institute for Organic Solar Cells; Altenberger Str. Nr. 69, 4040 Linz Austria
6. Linköping University; Norrköping campus, Laboratory of Organic Electronics, Department of Science and Technology; Bredgatan 33, Norrköping 60174 Sweden