1. Department of Chemistry and Biochemistry, School of Basic Science and Research, Sharda University, Greater Noida, UP, India
2. COE on Solar Cells and Renewable Energy, Department of Physics, School of Basic Science and Research, Sharda University, Greater Noida, UP, India
3. Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, USA
4. Currently at Research Corporation, Fremont, CA, USA
5. Faculty of Defence Science and Technology, Universiti Pertahanan Nasional Malaysi, Kuala Lumpur, Malaysia