1. Functional Materials Lab, Department of Physics, Air University, PAF Complex E-9, Islamabad, Pakistan
2. Polymer Composite Group, Physics Division, Directorate of Science, PINSTECH, P.O. Nilore, Islamabad, Pakistan
3. Core Research Facilities, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
4. US-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), NUST, H-12, Islamabad 44000, Pakistan