1. Mackenzie Presbyterian Institute, Mackenzie Institute for Research in Graphene and Nanotechnologies, São Paulo, SP, 01302-907, Brazil
2. Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP, Brazil
3. São Paulo State University (UNESP), School of Sciences, Department of Physics, Bauru, SP, Brazil
4. São Paulo State University (UNESP), Postgraduate Program in Materials Science and Technology (POSMAT), Bauru, SP, Brazil
5. São Paulo State University (UNESP), Institute of Science and Engineering, Itapeva, SP, Brazil
6. Mackenzie Evangelical Faculty of Paraná, Curitiba, PR, Brazil