1. PG & Research Department of Physics, Arul Anandar College, Madurai, India
2. Advanced Functional Materials & Optoelectronic Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha, Saudi Arabia
3. Nanoscience Laboratory for Environmental and Bio-medical Applications (NLEBA), Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt
4. Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, Republic of Korea