1. LaMCScI, Group of Optoelectronic of Semiconductors and Nanomaterials, ENSET, Rabat, Mohammed V University in Rabat, Rabat, Morocco
2. Laboratory of Condensed Matter and Renewable Energy, Faculty of science and Technology, University of Hassan II, Casablanca, Morocco
3. LCP-A2MC, Institut de Chimie, Physique et Materiaux, Universite de Lorraine, Metz, France
4. Universidad EIA, C.P. 055428 Envigado, Colombia
5. Grupo de Materia Condensada- UdeA, Instituto de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia U de A, Calle 70 No. 52-21, Medellin, Colombia