Effect of Fe-doping on the structural, optical and magnetic properties of ZnO nanostructures synthesised by co-precipitation method

摘要: Abstract Nanoparticles of Zn1−xFexO (0≤x≤0.2) were prepared by co-precipitation method followed drying at 200 °C. Tween-80, a non-ionic surfactant, not reported in earlier studies was used during preparation process. X-ray diffraction analysis showed the formation wurtzite ZnO phase nanostructures. The Rietveld confirmed hexagonal structure for all dopant levels without any impurity. Morphological observations using scanning electron microscopy show nanoparticles with remarkable morphologies. Photoluminescence spectra revealed emission bands both UV and visible regions due to defect centres acting as trap levels. Optical carried out diffuse reflectance spectroscopy (DRS) indicated decrease value band gap increasing Fe doping concentration. elemental composition Zn, O quantitatively obtained from EDAX purity as-prepared nanopowders that chemical is close starting stoichiometries. Magnetization–Field (M–H) hysteresis curves appearance ferromagnetic behaviour, where magnetic characteristics such coercivity saturation magnetization values, found be sensitive level.