1. Department of Physics Pabna University of Science and Technology Pabna 6600 Bangladesh
2. Department of Physics Chittagong University of Engineering and Technology (CUET) Chattogram 4349 Bangladesh
3. School of Materials Science and Engineering Faculty of Science University of New South Wales Sydney 2052 Australia
4. Department of Materials Science and Engineering University of Rajshahi Rajshahi 6205 Bangladesh
5. Department of Electrical and Electronic Engineering International Islamic University Chittagong Kumira Chittagong 4318 Bangladesh