1. Institute of Applied Physics and Materials Engineering
2. University of Macau
3. Macao SAR
4. P.R. China
5. Department of Electromechanical Engineering
6. Faculty of Science and Technology
7. P. R. China
8. New Industry Creation Hatchery Center
9. Tohoku University
10. Sendai
11. Japan
12. Department of Physics and Nanotechnology
13. Department of Physics and Chemistry