1. Key Laboratory of Materials Physics
2. Anhui Key Laboratory of Nanomaterials and Nanostructures
3. Institute of Solid State Physics
4. Hefei Institutes of Physical Science
5. Chinese Academy of Sciences
6. Department of Applied Physics
7. The Hong Kong Polytechnic University
8. Kowloon
9. Hong Kong
10. China National Academy of Nanotechnology and Engineering
11. Teda Tianjin 300457
12. People's Republic of China