1. School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
2. Department of Physics Stockholm University Frescativägen 11419 Stockholm Sweden
3. Institute of Chemical Technology Mumbai – IOC Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre Bhubaneswar 751013 India