1. Institute of Physics, Baghdad ul Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
2. Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
3. Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
4. Department of Electronics, Government College University Lahore, Lahore 54000, Pakistan
5. Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford OX3 7LD, U.K.