1. State Key Laboratory of Chem/Bio-Sensing and Chemometrics
2. Provincial Hunan Key Laboratory for Graphene Materials and Devices
3. College of Chemistry and Chemical Engineering
4. Hunan University
5. Changsha
6. College of Physics and Electronics
7. Changsha 410082
8. PR China
9. Department of Mechanical Engineering
10. College of Engineering & Applied Sciences
11. University of Wisconsin-Milwaukee
12. Milwaukee
13. USA
14. College of Material and Engineering