1. Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
2. Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis (UniMAP), Pauh Putra Campus, 02600, Arau, Perlis, Malaysia
3. Geopolymer and Green Technology (CeGeoGTech), Universiti Malaysia Perlis (UniMAP), Pauh Putra Campus, 02600, Arau, Perlis, Malaysia
4. Faculty of Mechanical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Pauh Putra Campus, 02600, Arau, Perlis, Malaysia
5. Department of Physics, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland