1. Atomic and Molecular Physics Lab, Department of Physics, University of Rajshahi, Rajshahi, Bangladesh
2. UNAM – National Nanotechnology Research Center and Institute of Material Science and Nanotechnology, Bilkent University, Ankara, Turkey
3. Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), Somerset West, Western Cape Province, South Africa
4. UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa