1. Department of Materials Science and Engineering
2. I-Shou University
3. Kaohsiung 840
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 Chemical Engineering
13. National Cheng Kung University
14. Tainan 70101