1. Department of Industrial Engineering DII University of Padova Via Marzolo 9 Padova 35131 Italy
2. CHOSE – Centre for Hybrid and Organic Solar Energy Department of Electronic Engineering University of Rome “Tor Vergata” Via del Politecnico 1 Rome 00133 Italy
3. ISM‐CNR Istituto di Struttura della Materia Consiglio Nazionale delle Ricerche via del Fosso del Cavaliere 100 Rome 00133 Italy