[1] Gnanamani Coll Engn, Dept Phys, Namakkal 637018, Tamilnadu, India
[2] Kandaswami Kandars Coll, Dept Chem, P Velur, Namakkal, Tamilnadu, India
[3] Selvam Coll Arts & Sci, Dept Elect, Namakkal 637003, Tamilnadu, India
[4] King Khalid Univ, Fac Sci, Dept Phys, Adv Funct Mat & Optoelect Lab, POB 9004, Abha, Saudi Arabia
[5] Yeungnam Univ, Sch Chem Engn, Gyongsan 38541, South Korea