1. Department of Materials Science and Engineering
2. I-Shou University
3. Kaohsiung
4. Taiwan
5. Department of Physics and Astronomy
6. University of New Mexico
7. Albuquerque
8. USA
9. Department of Chemical and Materials Engineering
10. National University of Kaohsiung
11. Kaohsiung 81148
12. Department of Materials and Optoelectronic Science
13. National Sun Yat-Sen University
14. Kaohsiung 804