1. Department of Chemistry, M S Ramaiah Institute of Technology (Autonomous Institute, affiliated to Visvesvaraya Technological University, Belguam), Bangalore, 560054, India
2. Department of Chemistry, R & D Cell, Jawaharlal Nehru Technological University, Anantapuramu, 515001, India
3. Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
4. Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot, 76100, Israel