1. Department of Chemistry and Centre for Advanced Studies, Panjab University, Chandigarh 160014, India
2. Photosciences & Photonics Section, Chemical Science & Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, India
3. Science and Engineering Research Board, New Delhi 110070, India
4. Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India