1. Department of Chemical and Biomedical Engineering FAMU-FSU College of Engineering Tallahassee FL 32310 USA
2. Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education) Department of Physics Beihang University Beijing 100191 China
3. Materials Science and Engineering Program Florida State University Tallahassee FL 32306 USA
4. Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
5. Department of Chemistry University of Southern California Los Angeles CA 90089 USA
6. Materials Science & Technology Division and Center for Radiation Detection Materials and Systems Oak Ridge National Laboratory Oak Ridge TN 37831 USA