1. Moulay Ismail University of Meknes,Optoelectronics and Applied Energy Techniques, Faculty of science and technology,Errachidia,Morocco
2. Faculty of Science Moulay Ismail University,Physics department, Materials and Modelling Laboratory,Meknes,Morocco
3. Faculty of science and technology Moulay Ismail University,New Energies and Materials Engineering Laboratory,Errachidia,Morocco