1. College of Physics
2. State Key Laboratory of Bio-Textiles
3. Qingdao University
4. Qingdao 266071
5. China
6. School of Materials Science and Engineering
7. Shandong University of Science and Technology
8. Qingdao 266590
9. Centre for Clean Energy Technology
10. School of Mathematical and Physical Sciences
11. Faculty of Science
12. University of Technology Sydney
13. Sydney