1. School of Physical Science and Technology
2. Yunnan University
3. Kunming 650091
4. People's Republic of China
5. Yunnan Key Laboratory of Micro/Nano Materials & Technology
6. Faculty of Materials Science and Engineering
7. Key Laboratory of Advanced Materials of Yunnan Province
8. Kunming University of Science and Technology
9. Kunming 650093
10. Research Institute of Engineering and Technology