[1] Mirpur Univ Sci & Technol, Dept Phys, Mirpur 10250, Ajk, Pakistan
[2] King Saud Univ, Coll Sci, Phys & Astron Dept, Riyadh, Saudi Arabia
[3] King Saud Univ, Chem Engn Dept, SABIC Polymer Res Ctr, POB 800, Riyadh 11421, Saudi Arabia
[4] Lahore Univ Management Sci, Sch Sci & Engn, Lahore 54792, Pakistan
[5] COMSATS Univ Islamabad, IRCBM, Lahore Campus, Lahore 54600, Pakistan