1. School of Materials Science and Engineering
2. Harbin University of Science and Technology
3. Harbin 150080
4. China
5. Department of Physics
6. Harbin Institute of Technology
7. Harbin 150001
8. Key Laboratory of Green Chemical Technology of College of Heilongjiang Province
9. College of Chemical and Environmental Engineering
10. Key Laboratory of Micro-Nano Optoelectronic Information System