1. Department of Materials Science and Engineering School of Molecular Science and Engineering Vidyasirimedhi Institute of Science and Technology 21210 Wangchan Rayong Thailand
2. Department of Chemistry Faculty of Science Chiang Mai University Muang District 50200 Chiang Mai Thailand
3. Research Network of NANOTEC-VISTEC on Nanotechnology for Energy Vidyasirimedhi Institute of Science and Technology 21210 Wangchan Rayong Thailand