1. Department of Physics, Government College University Faisalabad, 38000, Faisalabad, Punjab, Pakistan
2. London Centre for Energy Engineering (LCEE), School of Engineering, London South Bank University, London SE1 0AA, UK
3. Department of Physics, College of Sciences, Princess Nourah bint Abdulrahman University (PNU), P.O. Box 84428, Riyadh 11671, Saudi Arabia