1. School of Basic Sciences and Advanced Materials Research Center
2. Indian Institute of Technology Mandi
3. Mandi 175075
4. India
5. Department of Physics
6. Indian Institute of Technology Delhi
7. New Delhi 110016
8. Nanocatalysis and Solar Fuels Research Laboratory
9. Department of Materials Science & Nanotechnology
10. Yogi Vemana University
11. Kadapa 516005