1. Department of Chemical
2. Biological and Macromolecular Sciences
3. S. N. Bose National Centre for Basic Sciences
4. Kolkata 700 106
5. India
6. Institute for Condensed Matter Physics
7. TU Braunschweig
8. 38106 Braunschweig
9. Germany
10. Laboratory for Emerging Nanometrology
11. Department of Chemistry
12. Indian Institute of Engineering Science and Technology Shibpur
13. Howrah-711103
14. Technical Physics Division
15. Bhaba Atomic Research Centre
16. Mumbai 400085