1. Department of Physics
2. St Teresas's College
3. Ernakulam-682011
4. India
5. International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University
6. Kottayam-686 560
7. School of Pure and Applied Physics, Mahatma Gandhi University
8. UGC DAE CSR, Kolkata Centre
9. Kolkata-700098
10. School of Chemical Sciences, Mahatma Gandhi University
11. Department of Applied Chemistry, University of Johannesburg
12. Johannesburg 2028
13. South Africa
14. Centre for Nanomaterials Sciences Research, University of Johannesburg
15. Johannesburg