1. Advanced Material Research Unit, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok, Thailand;
2. Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok, Thailand;
3. Electroceramic Laboratory, Collage of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok, Thailand;
4. Department of Electronics Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok, Thailand;
5. Department of Materials Science, Faculty of Science, Srinakharinwirot University, Watthana, Bangkok, Thailand