1. Department of Physics and the Astronomy and Graphene Research Institute
2. Sejong University
3. Seoul 05006
4. Korea
5. Department of Physics
6. Riphah Institute of Computing and Applied Sciences (RICAS)
7. Riphah International University
8. Lahore
9. Pakistan
10. College of Science
11. Majmaah University
12. Al-Zulfi 11932
13. Saudi Arabia