1. Institute for Chemistry and Technology of Materials (ICTM) NAWI Graz Graz University of Technology Stremayrgasse 9 Graz 8010 Austria
2. Linz Institute of Organic Solar Cells (LIOS) Institute of Physical Chemistry Johannes Kepler University Linz Altenbergerstrasse 69 4040 Linz Austria
3. Institute of Inorganic Chemistry NAWI Graz Graz University of Technology Stremayrgasse 9 Graz 8010 Austria