1. College of Materials Science and Engineering
2. Sichuan University
3. Chengdu 610065
4. China
5. Interdisciplinary Nanoscience Center
6. State Key Laboratory of Electronic Thin Films and Integrated Devices
7. University of Electronic Science and Technology of China
8. Chengdu 610054
9. Dongguan University of Technology
10. North Laser Research Institute Co. Ltd
11. Chengdu
12. Aarhus University
13. Aarhus 8000
14. Denmark