1. Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, Heraklion 70013, Crete, Greece
2. Department of Materials Science and Technology and Institute of Electronic Structure and Laser (I.E.S.L.), Foundation for Research and Technology-Hellas (FO.R.T.H.), University of Crete, Vassilika Vouton, Heraklion 70013, Crete, Greece
3. Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Aghia Paraskevi, Attiki 15341, Greece