1. State Key Laboratory of Chemo/Biosensing and Chemometrics
2. Hunan University
3. Changsha 410082
4. P. R. China
5. Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education
6. School of Physics and Electronics
7. School of Materials Science and Engineering
8. Nanchang Hangkong University
9. Nanchang 330063
10. Department of Chemistry
11. National University of Singapore
12. Singapore