1. Laboratory of Spectroscopic Characterization and Optical Materials, Faculty of Sciences, University of Sfax, B.P. 1171, 3000 Sfax, Tunisia
2. Laboratory Physical-Chemistry of Solid State, Chemistry Department, Faculty of Sciences of Sfax, University of Sfax, BP 1171, 3000, Sfax, Tunisia
3. Quantum and Statistical Physics Laboratory, Faculty of Sciences, University of Monastir, Monastir 5079, Tunisia
4. Université de Tours, Laboratoire GREMAN UMR-CNRS 7347, 15 rue de la Chocolaterie, IUT de Blois, 41029 Blois cedex, France
5. Institut des Molécules et Matériaux du Mans (IMMM), UMR-6283 CNRS, Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France