1. Nanomaterials Research Group, PD, PINSTECH, Islamabad 44000, Pakistan
2. Institute of Chemical Sciences, University of Peshawar, Peshawar 25000, Pakistan
3. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
4. Department of Chemistry, GC University, Faisalabad 38000, Pakistan
5. CAFD, PINSTECH, Islamabad 44000, Pakistan
6. National Institute of Lasers and Optronics College, PIEAS, Islamabad, Pakistan
7. Theoretical Physics Division, PINSTECH, Islamabad 44000, Pakistan
8. School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, P. R. China