1. Department of Physics Periyar University Salem Tamil Nadu India
2. Department of Physics Government College of Engineering Srirangam Tiruchirappalli Tamil Nadu India
3. Department of Physics Arignar Anna Govt Arts College Attur Tamil Nadu India
4. Department of Physics Kalaignar Karunanidhi Government Arts College Tiruvannamalai Tamil Nadu India
5. UNESCO‐UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies University of South Africa (UNISA) Pretoria South Africa
6. Department of Physics Government Arts College (Autonomous) Salem Tamil Nadu India
7. Department of Chemistry, College of Science Princess Nourah Bint Abdulrahman University Riyadh Saudi Arabia
8. Department of Biology, College of Science Qassim University Buraydah Saudi Arabia
9. Department of Physics, College of Science King Faisal University Al‐Ahsa Saudi Arabia