1. Advance Nanomaterial Research Laboratory, Department of Physics, University of Allahabad, Prayagraj, Uttar Pradesh, 211002, India
2. Centre of Environmental Science, IIDS, University of Allahabad, Prayagraj, Uttar Pradesh, 211002, India
3. SGN Government Post Graduate College, Muhammadabad Gohna, Uttar Pradesh, 276403, India
4. Centre of Material Sciences, IIDS, University of Allahabad, Prayagraj, Uttar Pradesh, 211002, India