1. Physics Department, Faculty of Science; Minia University; Minia 11432 Egypt
2. Department of Physics; Al-Qunfudah University College, Umm Al-Qura University; Al Qunfudhah 28821 Saudi Arabia
3. Renewable Energy Science & Engineering Department, Faculty of Postgraduate Studies for Advanced Science (PSAS); Beni-Suef University; Bani Sweif Egypt