1. Department of Materials Science & Engineering
2. University of Ioannina
3. GR-45110 Ioannina
4. Greece
5. Cambridge Graphene Centre
6. Centre of Excellence for Nanostructured Materials (CENMAT)
7. INSTM
8. unit of Trieste
9. Department of Chemical and Pharmaceutical Sciences
10. University of Trieste
11. Zernike Institute for Advanced Materials
12. Department of Materials Science
13. University of Patras
14. GR-26504 Patras
15. University of Groningen
16. NL-9747 AG Groningen
17. The Netherlands