1. UGC-Networking Resource Centre, School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
2. Centre for Advanced Studies in Electronics Science and Technology, School of Physics, University of Hyderabad, Hyderabad 500046, Telangana, India
3. Amrita Center for Industrial Research & Innovation (ACIRI), Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore 641112, Tamil Nadu, India