Affiliation: | 1. Department of Physics, Rathinam Technical Campus, Rathinam Techzone, Eachanari, Coimbatore, 641021, Tamilnadu, India;2. Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India;3. Department of Chemical Engineering, School of Engineering, Newcastle University, Merz Court, Claremont Road, NE1 7RU, Newcastle Upon Tyne, UK |