1. Department of Physics, Faculty of Science, Naresuan University, Phitsanulok, Thailand;
2. Department of Chemistry, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand;
3. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand;
4. Research Center for Academic Excellence in Applied Physics, Faculty of Science, Naresuan University, Phitsanulok, Thailand