1. School of Pure and Applied Physics
2. Mahatma Gandhi University
3. Kottayam
4. India
5. Department of Physics
6. Catholicate College
7. Université de Lorraine
8. Institut Jean Lamour
9. Vandoeuvre-lès-Nancy
10. France
11. CNRS
12. School of Chemical Sciences
13. International and Inter University Centre for Nanoscience and Nanotechnology