1. Department of Physics; Acharya Nagarjuna University; Guntur Andhra Pradesh India
2. Department of Physics; University College of Engineering and Technology; Acharya Nagarjuna University; Guntur Andhra Pradesh India
3. Faculty of Physics; Opole University of Technology; Opole Poland
4. Department of Chemistry and Research Institute; SRM Institute of Science and Technology (SRM IST); Chennai Tamil Nadu India
5. Institute of Physics; J. Dlugosz University; Czestochowa Poland