Affiliation: | 1. Department of Physics, Faculty of Science, Taif University, Taif, Saudi Arabia;2. Department of Mathematical and Physical Engineering, Faculty of Engineering (Shoubra), Benha University, Cairo, Egypt;3. Department of Physics, Faculty of Science, Aljouf University, Aljouf, Saudi Arabia;4. Department of Physics, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt;1. Key Laboratory of Semiconductor Photovoltaic Technology of Inner Mongolia Autonomous Region, School of Physical Science and Technology, Inner Mongolia University, 235 West Daxue Street, Hohhot 010021, China;2. School of Material and Science Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;1. Nanotechnology and Advanced Materials Research Unit ( NAMRU), Faculty of Engineering, University of Kufa, 21 Najaf, Iraq;2. Department of Physics, Faculty of Science, University of Kufa, 21 Najaf, Iraq;1. Research Centre of Materials Science, Beijing Institute of Technology, Beijing 100081, PR China;2. State Key Laboratory for Mesoscopic Physics, and Electron Microscopy Laboratory, Department of Physics, Peking University, Beijing 100871, PR China |