1. Advanced Materials and Nanomaterials Multidisciplinary Program, Faculty of Engineering, Cairo University, Giza, Egypt;
2. Graphene Center of Excellence for Energy and Electronic Applications, Egypt-Japan University of Science and Technology, New Borg El-Arab, Alexandria, Egypt;
3. Materials Science and Engineering Department, Japan University of Science and Technology, New Borg El-Arab, Alexandria, Egypt;
4. Department of Metallurgy, Faculty of Engineering, Cairo University, Giza, Egypt;
5. Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El-Arab, Alexandria, Egypt