1. Key Lab of Microsystem and Microstructure of Ministry of Education
2. Harbin Institute of Technology
3. Harbin
4. China
5. School of Materials Science and Engineering
6. State Key Laboratory of Super lattices and Microstructures
7. Institute of Semiconductors
8. Chinese Academy of Sciences
9. Beijing 100083
10. State Key Laboratory of Urban Water Resource and Environment
11. People's Republic of China
12. Center for Nano phase Materials Sciences
13. Oak Ridge National Laboratory
14. TN 37831
15. USA
16. Condensed Matter Science and Technology Institute
17. Harbin 150080