Synthesis and Structural Characteristics of Fe Doped ZnO Nanoparticles at Different Molarities and Temperatures

Abstract

Article history: Received 04 March 2019 Accepted 30 March 2019 Available online 30 April 2019 Iron doped zinc oxide (Fe:ZnO) nanoparticles are prepared by wet chemical method at different molarities (0.025 M, 0.05 M and 0.1 M) and different temperatures (RT and 473 K). The nanoparticles are studied by X-ray diffraction (XRD), transmission electron microscopy (TEM) techniques. Crystallite sizes and lattice strain of nanoparticles are calculated by Williamson Hall (W-H) method. The average particle size of the nanoparticle is also calculated by Scherrer formula. Uniform deformation model (UDM), unifrom stress deformation model (USDM) and uniform deformation energy density model (UDEDM) are used to calculate stress, strain, and energy density involved in the sample. We get different particle sizes of nano particle perpendicular to different (hkl) planes. This shows that particles are not spherical in nature, particles are like rectangular block. It has been also observed from transmission electron micrograph that particles are of rectangular block types. The annealed sample shows larger particle size compared to the sample prepared at room temperature, which is an input for band gap engineering studies.