1. Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
2. Department of Chemistry, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, India
3. Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, Rajasthan 302017, India