1. Laboratory of Spectroscopic and Optical Characterization of Materials (LaSCOM), Faculty of Sciences, University of Sfax, BP1171 – 3000 Sfax, Tunisia
2. Department of Physics Sciences, College of Sciences, Jazan University, P. O. Box 114, Jazan, 45142, Kingdom of Saudi Arabia
3. Laboratory of Interfaces and Advanced Materials, Faculty of Science, Boulevard of the Environment, University of Monastir, 5019, Monastir, Tunisia