Institution: | 1. Department of Physics, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;2. Department of Science and Mathematics (Physics), Faculty of Science and Technology, Pathumwan Institute of Technology, Bangkok 10330, Thailand;3. Capability Building Unit in Nanoscience and Nanotechnology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;4. Mahidol University International College, Nakornpathom 73170, Thailand |