1. Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Malaysia
2. Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Arau, Malaysia
3. Faculty of Mechanical Engineering Technology, Universiti Malaysia Perlis, Arau, Malaysia
4. Department of Electrical and Electronic Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kajang, Malaysia
5. National Nanotechnology Centre (NNC) Ministry of Science, Technology and Innovation, Putrajaya, Malaysia