1. Institute
of Applied Physics “Nello Carrara”, National Research Council, via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
2. Department
of Chemical and Geological Sciences, University of Modena e Reggio Emilia, via Campi 103, 41125 Modena, Italy
3. Institute
of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia
4. Institute
for Microelectronics and Microsystems, National Research Council, zona
industriale strada VIII n.5, 95121 Catania, Italy
5. Saratov National Research State University, 83 Ulitsa Astrakhanskaya, 410012 Saratov, Russia