1. Advanced Materials and Devices Division, CSIR-National Physical Laboratory, New Delhi 110012, India
2. Academy of Scientific and Innovative Research (AcSIR), CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi 110012, India
3. Department of Solar Energy, School of Technology, Pandit Deendayal Energy University, Gandhinagar 382426, India
4. Department of Physics, School of Technology, Pandit Deendayal Energy University, Gandhinagar 382426, India