1. Department of Physics, College of Education for Pure Sciences – Ibn Al-Haitham , University of Baghdad , Baghdad 10071 , Iraq
2. Surface Analysis and Materials Engineering Research Group, College of Science, Health, Engineering and Education , Murdoch University , Murdoch , WA 6150 , Australia
3. Department of Chemical and Petroleum Engineering , United Arab Emirates University , Sheikh Khalifa bin Zayed Street , Al-Ain 15551 , United Arab Emirates