1. Laboratoire de Photonique Quantique, d'Energie et de Nano-Fabrication
2. Faculté des Sciences et Techniques
3. Université Cheikh Anta Diop de Dakar (UCAD)
4. Dakar
5. Senegal
6. Department of Physics
7. Institute of Applied Materials
8. SARChI Chair in Carbon Technology and Materials
9. University of Pretoria
10. Pretoria 0028