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