1. Department of Physics
2. Cooch Behar Panchanan Barma University
3. India
4. School of Materials Science and Nanotechnology
5. Jadavpur University
6. Kolkata 700032
7. Micro and Nano Research Lab
8. National Institute of Technology
9. Silchar
10. Dinhata College
11. Department of Applied Science and Humanities
12. Assam University
13. Silchar 788011