1. Asia Pacific Nanotechnology Forum, The Meriton Heritage Building, Suite 1, Level 2, 533–539 Kent Street, Sydney NSW 2000, Australia, E-mail: (
2. Associate Professor, Microelectronics, School of Advanced Technologies, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani, 12120, Thailand, E-mail: (