1. Centre for Sustainable Energy Technology (C-SET), CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram- 695019, Kerala, India
2. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
3. Department of Physics, Indian Institute of Technology Madras (IITM), Chennai 600036, India
4. Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram-695019, Kerala, India