1. Solid State Physics Department, Physics Research Institute, National Research Centre, 33 El-Bohouth St, Dokki, Giza 12622, Egypt
2. Photometry and Radiometry Division, National Institutes of Standards (NIS), Tersa St, Al-Haram, 12211 Giza, Egypt
3. Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
4. Department of Nanotechnology and Advanced Materials, Graduate School of Applied and Natural Science, Selçuk University, Konya 42030, Turkey
5. Solar Research Laboratory, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics, Cairo, Egypt