1. College of Advanced Manufacturing Innovation, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
2. Department of Physics, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
3. Electronic and Optoelectronic Device Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
4. Department of Physics, Integrated Nanotechnology Research Center, Khon Kaen University, Khon Kaen, Thailand
5. Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University, Khon Kaen, 40002, Thailand
6. School of Science and Technology, University of New England, Armidale, New South Wales 2351, Australia