1. Department of Physics, Indian Institute of Technology Madras, Chennai-600 036, India
2. 2D Materials Research and Innovation Group, Indian Institute of Technology Madras, Chennai-600036, India
3. Department of Electrical Communication Engineering, Indian Institution of Science, Bangalore- 560012, India
4. Micro Nano and Bio-Fluidics Group, Indian Institute of Technology Madras, Chennai-600036, India
5. Department of Physics, School of Applied Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha-751024, India