1. Department of Mechanical Engineering, College of Engineering Universiti Tenaga Nasional Kajang Malaysia
2. Institute of Sustainable Energy Universiti Tenaga Nasional Kajang Malaysia
3. Solar Energy Research Institute (SERI) Universiti Kebangsaan Malaysia Bangi Malaysia
4. Materials Science Program, Department of Applied Physics, Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia