1. Department of Physics, University of Sahiwal, Sahiwal, Punjab 57000, Pakistan
2. Department of Physics, Faculty of Science, University of Gujrat, Gujrat, Punjab 50700, Pakistan
3. Department of Physics, University of Engineering and Technology, Lahore, Punjab 54890, Pakistan
4. Department of Mechanical Engineering, University of Engineering and Technology, Lahore, Punjab 54890, Pakistan
5. Research Centre for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61514, Saudi Arabia
6. Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
7. The Sargent Centre for Process Systems Engineering, Department of Chemical Engineering, University College London, London WC1E 6BT, U.K.