1. CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
2. Laboratory of Semiconductors, Nanostructures and Advanced Technology (LSNTA), Research and Technology Centre of Energy (CRTEn), BP 95, 2050 Hammam-Lif, Tunisia
3. Photovoltaic Laboratory, Research and Technology Centre of Energy (CRTEn), BP 95, 2050 Hammam-Lif, Tunisia
4. Faculty of Sciences of Tunis, El Manar University, 2092 Tunis, Tunisia