1. School of Physical and Mathematical Sciences
2. Nanyang Technological University
3. Singapore
4. Department of Electrical Engineering
5. Indian Institute of Technology Bombay
6. Mumbai 400 076
7. India
8. School of Engineering and Technology
9. CMR University
10. Bangalore 560043
11. School of Material Science and Engineering
12. Energy Research Institute@NTU (ERI@N)
13. CNRS
14. UMR 8232