1. Aix Marseille Univ (AMU), CNRS,
Madirel (UMR 7246), Electrochemistry of Materials Group, site St Jérôme, 13397 Marseille, France
2. University of Rome Tor Vergata, Department
of Industrial Engineering, Via del Politecnico 1, 00133 Rome, Italy
3. International Associated
Laboratory (L.I.A.): Ionomer Materials for Energy, Marseille, France and Rome, Italy
4. Flexible
Electronics Department, Ecole Nationale Supérieure des Mines de Saint-Etienne, Center Microelectronics Provence, 13541 Gardanne, France
5. Institute for the Study of Nanostructured Materials, ISMN − CNR, P.O. Box 10, 00015 Monterotondo Stazione, Rome, Italy