1. National Centre for Nanoscience and Nanotechnology University of Mumbai Vidyanagari, Santacruz Mumbai 400098 India
2. Department of Physics University of Mumbai Vidyanagari, Santacruz Mumbai 400098 India
3. Global Innovative Centre for Advanced Nanomaterials College of Engineering, Science and Environment The University of Newcastle University Drive Callaghan NSW 2308 Australia
4. Department of Chemical and Biological Engineering Monash University Victoria 3800 Australia
5. Centre for Interdisciplinary Research D. Y. Patil Education Society Kolhapur 416 006 India