1. Department of Physics, Naresuan University, Phitsanulok, Thailand
2. School of Renewable Energy and Smart Grid Technology, Naresuan University, Phitsanulok, Thailand
3. Research Center for Academic Excellence in Applied Physics, Naresuan University, Phitsanulok, Thailand
4. Advanced Material Research Unit, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand