1. NNL, National Nanotechnology Laboratory of CNR-INFM c/o Istituto Superiore Universitario di Formazione Interdisciplinare, sez. Nanoscienze, Distretto Tecnologico, Università del Salento, Via Arnesano 16, Lecce 73100, Italy, IIT, Italian Institute of Technology, Energy Plattform, Via Morego 30, Genova 16163, Italy, and DSC, Daunia Solar Cell c/o TRE-Tozzi Renewable Energy Group, Via Zuccherificio 10, Mezzano (RA) 48100, Italy