1. Electroceramic Research Laboratory, College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand;
2. Department of Electronics Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand;
3. Nano-KMITL Center of Excellence on Nanoelectronic Devices, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand
4. Advanced Material Research Unit, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand;