1. Solar Cell Applications Research Lab, Department of Physics, Government College University, Lahore, Pakistan
2. Department of Chemistry, Government College University Faisalabad, Sahiwal Campus, Pakpattan Road, Sahiwal, 57000, Pakistan
3. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
4. Sungkyunkwan University, Suwon, Republic of Korea
5. Physics Division, PINSTECH, P.O. Nolire, Islamabad, Pakistan