1. Department of Physics
2. Hazara University
3. Mansehra 21300
4. Pakistan
5. College of Physics and Optoelectronic Engineering
6. Shenzhen University
7. Guangdong 518060
8. China
9. Abbottabad Uniersity of Science and Technology
10. Abbottabad 22010
11. Institute of Research and Development
12. Duy Tan University
13. Da Nang 550000
14. Vietnam
15. Department of Materials Science and Engineering
16. Le Quy Don Technical University
17. Ha Noi 100000