1. NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, USA
2. Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida 32816, USA
3. Analytical Research Division, Korea Basic Science Institute, Jeonju, Jeollabuk-do 54907, South Korea
4. BAE Systems FAST Labs, Columbia, Maryland 21046, USA
5. Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, USA