1. Institute of Materials for Energy and Environment
2. Growing Base for State Key Laboratory
3. College of Materials Science and Engineering
4. Qingdao University
5. Qingdao
6. Department of Applied Physics
7. School of Science
8. Northwestern Polytechnical University
9. Xi'an
10. P. R. China
11. Institute of Physics & Optoelectronics Technology
12. Baoji University of Arts and Sciences
13. Baoji 721016