1. School of Arts, Sciences and Humanities, University of São Paulo (USP), Arlindo Bettio Av., 1000, São Paulo, 03828-000, Brazil
2. Institute of Physics, Federal University of Uberlândia (UFU), João Naves de Ávila Av., 2121, Uberlândia 38408-100, Brazil
3. Department of Engineering, University of Rome “Campus Bio-Medico di Roma”, Alvaro del Portillo St., 21, Rome 00128, Italy
4. Sao Carlos Institute of Physics, University of São Paulo (USP), CP 369, 13560-970, Sao Carlos, SP, Brazil
5. Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, Via della Ricerca Scientifica St. Rome 00133, Italy
6. School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu 611731, Sichuan, P. R. China