1. Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
2. Department of Materials Science and Engineering, University of Delaware, Delaware 19716, USA
3. CAE Team, Semiconductor R&D Center, Samsung Electronics, Hwaseong-si, Gyeonggi-do 18448, South Korea
4. Thailand Center of Excellence in Physics (ThEP Center), Commission on Higher Education, Bangkok 10400, Thailand
5. School of Physics and NANOTEC-SUT Center of Excellence on Advance Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand