1. Faculty of Physics, Alexandru Ioan Cuza University, Blv. Carol I, nr.11, 700506 Iasi, Romania
2. Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genoa, Italy
3. CNR-SCITEC, Institute of Chemical Sciences and Technologies “Giulio Natta”, National Research Council, Via de Marini 6, 16149 Genoa, Italy
4. CNR-ICMATE, Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council, Via de Marini 6, 16149 Genoa, Italy