1. Department of Electrical and Electronic Engineering, University of West Attica, Egaleo, Athens, Greece
2. Graphic Design and Visual Communication Department, University of West Attica, Egaleo, Athens, Greece
3. Laboratory of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Zografou, Greece
4. Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Athens, Greece