1. Department of Physics, University of Education, Lahore, Pakistan
2. Department of Physics, University of Management and Technology, Lahore, Pakistan
3. Departamento de Engenharia de Materiais, Escola de Engenharia de Lorena (EEL), Universidade de São Paulo (USP), Sao Paulo, Brazil
4. School of Microelectronics, Tianjin University, Tianjin, China
5. School of Electrical and Information Engineering, Tianjin University, Tianjin, China
6. Department of Statistics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia