1. Laboratory of Natural and Artificial Radiations, Department of Physics University Cheikh Anta Diop Dakar Senegal
2. Laboratory of Fluid Mechanics and Applications, Department of Physics University Cheikh Anta Diop Dakar Senegal
3. International and Inter University Center of Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam India
4. School of Chemical Sciences Mahatma Gandhi University Kottayam India
5. School of Energy Materials Mahatma Gandhi University Kottayam India