1. Materials and Biophysics Group, Department of Applied Physics, S. V. National Institute of Technology, Surat 395007, India
2. School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
3. Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México Circuito exterior s/n, Ciudad Universitaria, Del. Coyoacán, CP 04510, Ciudad de México, Mexico
4. Department of Environmental Research, University of Science and Technology (UST), Daejeon 34113, Korea
5. Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Korea
6. Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
7. Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
8. School of Engineering Practice and Technology, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L8, Canada