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

Abstract

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.

LiAlO2/LiAl5O8 Membranes Derived from Flame-Synthesized Nanopowders as a Potential Electrolyte and Coating Material for All-Solid-State Batteries

“…Figure S2 shows the W–H plots for the as-produced LiAlO 2 NPs. The nonlinearity in the W–H plot (Figure S2b) indicates the presence of the anisotropic strain . The gradient of β t cos θ versus sin θ plot gives the NP microstrain, and the Y -axis intercept gives the k λ/ D value.…”