1. Department of Chemistry, UGC Center for Advanced Studies-II, Guru Nanak Dev University, Amritsar, Punjab, India-
2. Department of Electronics Technology, Guru Nanak Dev University, Amritsar, Punjab, India-
3. Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, India-
4. Analytical and Environmental Science Division and CIF, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, India
5. UGC-DAE Consortium for Scientific Research, Mumbai, India