1. Nanomaterials Research Laboratory; Department of Materials Science & Nanotechnology; D.C.R. University of Science & Technology; Murthal (Sonepat) Haryana 131039 India
2. Department of Physics; D.C.R. University of Science & Technology; Murthal (Sonepat) Haryana 131039 India
3. Center of Excellence for Energy and Environmental Studies; D.C.R. University of Science & Technology; Murthal (Sonepat) Haryana 131039 India
4. Department of Chemistry; M.K.J.K.M; Rohtak Haryana 124001 India