1. Department
of Chemistry, University of Rome “La Sapienza”, p.
le Aldo Moro 5, 00139 Rome, Italy
2. Department
of Chemistry and NIS Interdepartmental Centre, University of Turin, via Pietro Giuria 7, 10125 Torino, Italy
3. NIS
INSTM Reference Center, University of Turin, via Gioacchino Quarello 15/A, 10135 Torino, Italy
4. C.H.O.S.E.-Center
for Hybrid and Organic Solar Energy, Department of Electrical Engineering, University of Rome “Tor Vergata”, via del Politecnico 1, 00133 Rome, Italy