[1] Univ Salerno, Dipartimento Chim & Biol, I-84084 Fisciano, SA, Italy
[2] Univ Salerno, Dipartimento Ingn Ind DIIN, I-84084 Fisciano, SA, Italy
[3] SESMAT Srl, I-82018 San Giorgio Del Sannio, BN, Italy
[4] Italian Natl Agcy New Technol Energy & Environm E, UTTP Nanomat & Device Technol Sect, I-80055 Portici, NA, Italy