1. Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
2. Nuclear Materials Authority, El-Maadi, Cairo P.O. Box 530, Egypt
3. Centre of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
4. Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
5. K. A. CARE Energy Research and Innovation Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
6. Physics Department, Rabigh College of Science and Arts, King Abdulaziz University, P.O. Box 344, Rabigh 21911, Saudi Arabia