1. Nanomaterials Laboratory, Department of Physics, Alagappa University, Karaikudi 630003, Tamil Nadu, India
2. Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering & Technology (CIPET), Bhubaneswar 751024, India
3. Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, The Photonics Institute (TPI), Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
4. Faculty of Engineering and Science, Western Norway University of Applied Sciences, Bergen 5063, Norway