1. Linz Institute for Organic Solar Cells (LIOS); Johannes Kepler University; A-4040 Linz Austria
2. Dipartimento di Ingegneria Civile Ambientale, del Territorio Edile e di Chimica (DICATECh); Politecnico di Bari, Via Orabona 4; 70125 Bari Italy
3. Department of Physics, Faculty of Arts and Sciences; Yildiz Technical University, Davutpasa Campus; Esenler 34210 Istanbul Turkey
4. Institute of Inorganic Chemistry; Johannes Kepler University; A-4040 Linz Austria
5. Institute of Physics, Montanuniversitaet Leoben; Franz-Josef-Strasse, 18,; 8700 Leoben Austria
6. Elettra - Sincrotrone Trieste, S. S. 14 Km 163.5 in Area Science Park; 34149 Basovizza Trieste Italy
7. Materialwissenschaften und Physik; Abteilung für Mineralogie, Paris-Lodron Universität Salzburg; Hellabrunner Str. 34 5020 Salzburg Austria
8. Solar Energy Institute; Ege University; Izmir Turkey