1. Laboratory of Optoelectronics and Compounds (LOC), Department of Physics, Faculty of Science, University of Ferhat Abbas Setif 1, Sétif 19000, Algeria
2. Department of Nanoengineering, Kyonggi University, Yeongtong-gu, Suwon, Gyeonggi-do 16227, Republic of Korea
3. Department of Physics, Middle East Technical University, Ankara 06531, Turkey