1. NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, USA
2. Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, USA
3. Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida 32816, USA
4. Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, Florida 32816, USA
5. Department of Chemistry, University of Central Florida, Orlando, Florida 32816, USA