1. Division of Soft Matter Physics Institute for Experimental Physics Johannes Kepler University Linz Altenberger Strasse 69 Linz 4040 Austria
2. Soft Materials Lab Linz Institute of Technology Johannes Kepler University Linz Altenberger Strasse 69 Linz 4040 Austria
3. Department of Physics and Astronomy University of Bologna Viale Berti Pichat 6/2 Bologna 40127 Italy
4. National Institute for Nuclear Physics – INFN section of Bologna Bologna Italy
5. Linz Institute for Organic Solar Cells (LIOS) Institute of Physical Chemistry Johannes Kepler University Linz Altenberger Strasse 69 Linz 4040 Austria