Structural, Optical and Magnetic properties of Ni-doped ZnO synthesized by Co-precipitation method
A.A.Gadalla1, Israa Abood1*, M.M.Elokr2
Affiliation
- 1Physics Department, Faculty of Science, Assuit University, Assuit, Egypt
- 2Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
Corresponding Author
Israa Abood, Physics Department, Faculty of Science, Assuit University, Assuit, Egypt, Tel: +201090030242; E-mail: Israa_abood@yahoo.com
Citation
Abood, I., et al. Structural, Optical and Magnetic Properties of Ni-Doped ZnO Synthesized by Co-Precipitation Method. (2017) J Nanotechnol Material Sci 4(1): 19- 26.
Copy rights
© 2017 Abood, I. This is an Open access article distributed under the terms of Creative
Commons Attribution 4.0 International License.
Keywords
Abstract
Dilute magnetic semiconductors of Ni-doped ZnO nanoparticles (Zn1-xNixO, where x = 0.00, 0.02, 0.04, 0.05, 0.06 and 0.08) were synthesized by the chemical co-precipitation method. The effects of Ni concentration on the structure, optical and magnetic properties of the obtained samples were investigated using X-ray diffraction (XRD), energy dispersive X-ray spectroscopic analysis (EDX), UV–visible absorption (UV–V) , photoluminescence spectroscopy (PL) and vibrating sample magnetometry(VSM).
XRD patterns of the prepared samples display that the lattice constants of Zn1-xNixO, of x > 0.0 are slightly larger than the ones of pure ZnO. However, XRD reveals that both pure and doped ZnO samples exhibit hexagonal wurtzite structure. The energy band gap has also been estimated using UV-Vis optical absorption spectra. EDX spectroscopy was used to identify the elemental constituents of a material in samples. Also, vibrating sample magnetometry (VSM) data of Ni-doped ZnO show distinctly hysteresis loops at room temperature indicating the ferromagnetic behavior of the samples.
