1. Department of Physics, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
2. Center for Materials Science and Nanotechnology, University of Oslo, Oslo, Norway
3. Department of Physics, Faculty of Science, Benha University, Benha 13518, Egypt
4. Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands