1. U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan
2. School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad, Pakistan
3. Department of Physics, Faculty of Science, University of Jaffna, Jaffna 40000, Sri Lanka
4. Renewable Energy Advancement Laboratory (REAL), Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan