1. Nanotechnology Research Laboratory
2. Faculty of Engineering Sciences
3. GIK Institute of Engineering Sciences and Technology
4. Topi 23640
5. Pakistan
6. Physics Department
7. College of Science
8. Jouf University
9. Al-Jouf
10. Saudi Arabia
11. Department of Electrical and Biological Physics
12. Kwangwoon University
13. Seoul
14. Republic of Korea
15. Department of Engineering
16. Simon Fraser University
17. Burnaby
18. Canada