1. Department of Chemistry, Birla Institute of Technology and Science, Hyderabad Campus, Hyderabad 500078, India
2. Department of Electrical and Electronics Engineering, Birla Institute of Technology and Sciences (BITS), Pilani, Hyderabad Campus, Hyderabad 500078, Telangana, India
3. Materials Center for Sustainable Energy & Environment (McSEE), Birla Institute of Technology and Science, Hyderabad Campus, Hyderabad 500078, India