1. Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar, Perak Darul Ridzuan, Malaysia
2. Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Perak Darul Ridzuan, Malaysia
3. Mechanical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak Darul Ridzuan, Malaysia
4. Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis, Malaysia
5. Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Arau, Perlis, Malaysia
6. Faculty of Electrical Engineering Technology, Universiti Malaysia Perlis, Arau, Perlis, Malaysia