1. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
2. Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand
3. Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
4. Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
5. Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand
6. Research Center in Physics and Astronomy, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand