1. Institute of Chemical Sciences, Bahauddin Zakariya University, Multan60800, Pakistan
2. Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh11671, Saudi Arabia
3. University of Education, Lahore, Dera Ghazi Khan Campus, D. G. Khan32200, Pakistan
4. Institute of Physics, Khwaja Fareed University of Engineering and Information Technology, Abu Dhabi Road, Rahim Yar Khan64200, Pakistan
5. Department of Chemistry, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing100084, China