1. Department of Physics, Faculty of Science, Naresuan University, Phitsanulok, Thailand
2. Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), Khon Kaen University, Khon Kaen, Thailand ;
3. School of Renewable Energy Technology, Naresuan University, Phitsanulok, Thailand
4. Research Center for Academic Excellence in Applied Physics, Faculty of Science, Naresuan University, Phitsanulok, Thailand
5. Faculty of Science and Technology, Rajamangala University of Technology Suvarnabhumi, Nonthaburi, Thailand