Giovanna Canu (Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council), Elisabetta Brunengo (Institute for Macromolecular Studies, National Research Council), Maria Teresa Buscaglia (Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council), Lucia Conzatti (Institute for Macromolecular Studies, National Research Council), Chiara Costa (Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council), Lavinia Curecheriu (Dielectrics, Ferroelectrics & Multiferroics Group, Department of Physics, Alexandru Ioan Cuza University), Liliana Mitoseriu (Dielectrics, Ferroelectrics & Multiferroics Group, Department of Physics, Alexandru Ioan Cuza University), Leontin Padurariu (Dielectrics, Ferroelectrics & Multiferroics Group, Department of Physics, Alexandru Ioan Cuza University), Ilaria Schizzi (Institute for Macromolecular Studies, National Research Council), Vincenzo Buscaglia (Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council), Paola Stagnaro (Institute for Macromolecular Studies, National Research Council)