1. Department of Physics, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
2. Department of Physics, University of Okara, Okara 56300, Pakistan
3. Department of Energy Technology, Royal Institute of Technology (KTH), 10044 Stockholm, Sweden
4. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, China