Özet:

In this study, Pr dopedZnO [Zn1-x PrxO (where x = 0.01,0.02,0.03,0.04,0.05)] nanoparticles with praseodymium (Pr3+) doped were synthesized by hydrothermal technique. The hydrothermal technique for the preparation of Pr doped ZnO nanostructures at different concentrationsis to an easy, fast and efficient method. The crystal structures, crystal morphologies and optical properties of synthesized nanoparticles were characterized by X-ray diffraction (XRD), Energy dispersive X-ray (EDX), surface morphology scanning electronmicroscope (SEM) and DiffusereflactanceUV-VIS spectroscopy.XRD studies showed that all Pr doped ZnO samples had hexagona lcrystal structure and Pr3+ ions were successfully incorporated into ZnO nanostructures, and there were nopeaks of Pr or praseodymiumoxide diffraction peaks in the pattern. From the SEM images, it was seen that ZnO becomes denser and more compact as the Pr concentrationin creases in the crystal structure. In the EDX results, the presence of Zn, O and Pr peaks in the composition of the synthesized samples were detected. Energy band gaps were calculated from the optical measurements of all samples and it was observed that the calculated energy band gap values increased with the praseodymium concentration.

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