1. Laboratory of Semiconductors, Nanostructures and Advanced Technologies, Borj Cedria Science and Technology Park, BP 95, Hammam-Lif 2050, Tunisia
2. Departement de Physique, Faculté des Sciences de Bizerte, Université de Carthage, Tunis 2036, Tunisia
3. Department of Mathematics and Sciences, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia