1. Advanced Materials Research Unit; Faculty of Science; King Mongkut's Institute of Technology Ladkrabang; Bangkok Thailand
2. College of Nanotechnology; King Mongkut's Institute of Technology Ladkrabang; Bangkok Thailand
3. National Institutes for Materials Science (NIMS); Tsukuba Ibaraki Japan
4. Department of Chemistry; Faculty of Science; King Mongkut's Institute of Technology Ladkrabang; Bangkok Thailand
5. Nano-KMITL Center of Excellence on Nanoelectronic Devices; King Mongkut's Institute of Technology Ladkrabang; Bangkok Thailand