1. Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, USA
2. Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, Michigan 48859, USA
3. Science of Advanced Materials Program, Central Michigan University, 1200 S. Franklin St., Mount Pleasant, Michigan 48859, USA
4. Department of Electrical Engineering and Computer Science and MANSID Research Center, “Stefan Cel Mare” University, 13, Universitatii St., Suceava 720229, Romania