1. Department of Physics University of Agriculture and Environmental Sciences Owerri Imo State Nigeria
2. Department of Physics and Astronomy University of Nigeria Nsukka Nigeria
3. National Center for Physics Quaid‐i‐Azam University Islamabad Pakistan
4. NPU‐NCP Joint International Research Center on Advanced Nanomaterials and Defects Engineering Northwestern Polytechnical University Xi'an China
5. Department of Physics Federal University of Technology Owerri Imo State Nigeria
6. Department of Physics Allama Iqbal Open University Islamabad Pakistan
7. Department of Physics University of Delta Agbor Nigeria
8. Nanosciences African Network (NANOAFNET) iThemba LABS‐National Research Foundation Somerset West Western Cape South Africa
9. UNESCO‐UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies University of South Africa (UNISA) Pretoria South Africa
10. Africa Centre of Excellence for Sustainable Power and Energy Development (ACE‐SPED) University of Nigeria Nsukka Nigeria