1. Department of Solar Energy, School of Technology, Pandit Deendayal Energy University, Gandhinagar 382 007, Gujarat, India
2. Department of Science, School of Technology, Pandit Deendayal Energy University, Gandhinagar 382 007, Gujarat, India
3. Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
4. Department of Metallurgical and Materials Engineering, Karamanoglu Mehmetbey University, 70200, Karaman, Turkey
5. Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand, 247667, India
6. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
7. Department of Chemistry, Faculty of Science, King Khalid University, P. O. Box 9004, Abha 61413, Saudi Arabia