1. State Key Laboratory of New Ceramics and Fine Processing
2. School of Materials Science and Engineering
3. Tsinghua University
4. Beijing 100084
5. PR China
6. Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
7. Beijing Institute of Technology
8. Beijing
9. Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices
10. Department of Physics
11. Renmin University of China
12. Beijing 100872