1. Centre for Nanoscience and Technology
2. Pondicherry University
3. Puducherry-605 014, India
4. Physics Research Centre
5. Dhanalakshmi College of Engineering
6. Chennai 601 301, India
7. Centre for Fuel Cell Technology and Centre for Automotive Energy Materials IIT M Research Park
8. Chennai-600 113, India
9. Department of Nanoscience and Technology
10. Bharathiar University
11. Coimbatore 641 046, India