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Photoluminescence and optical dispersion parameters of N-doped ZnO nano-fiber thin films |
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| Authors: | M S Abd El-saddek I S Yahia Z A Alahmed F Yakuphanoglu |
| Affiliation: | 1. Nanomaterials Laboratory, Physics Department, Faculty of Science, South Valley University, Qena, 83523, Egypt 2. Nano-Science&Semiconductor Labs., Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt 3. Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Kingdom of Saudi Arabia 4. Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia 5. Department of Physics, Faculty of Science, Firat University, Elazi?, Turkey |
| Abstract: | N-doped ZnO (NZO) nanocrystalline thin films were successfully synthesized via sol–gel method. The structural and optical properties of the films were characterized by various techniques including X-ray diffraction, atomic force microscopy (AFM), UV–vis absorption and photoluminescence. The UV–vis absorption edge was changed with increasing N-doping concentration. X-ray diffraction (XRD) results clearly showed that the zinc oxide doped with nitrogen (5 to 20 wt.%) were identified with phases of hexagonal ZnO and N-doped ZnO nanocrystalline thin films. The refractive index dispersion mechanism obeys the Single oscillator model. The dispersion parameters E o and E d of the thin films were determined. The dispersion parameters were changed by N dopant. It is evaluated that the structural, optical constants, photoluminescence properties of Zinc oxide film can be controlled by N dopants. |
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