1. Condensed Matter Science and Technology Institute
2. Department of Physics
3. Harbin Institute of Technology
4. Harbin 150001
5. People's Republic of China
6. Department of Chemistry and Chemical Biology
7. Cornell University
8. Ithaca
9. USA
10. Key Laboratory for Photonic and Electronic Bandgap Materials
11. Ministry of Education
12. School of Physics and Electronic Engineering
13. Harbin Normal University
14. Harbin 150025