In the present work Pure and Cobalt (Co) doped Zinc Oxide (ZnO) Nanoparticles were synthesized by Sol-gel method. The effect of Co doping on structural and optical properties of Nanoparticles were investigated using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) spectroscopic characterization techniques. The XRD spectrum revealed the formation of Wurtzite structure of ZnO. The structural properties of nanoparticles including particle size and lattice strain were calculated from XRD data. SEM shows the morphology of Nanoparticles. The presence of functional groups was analyzed from FTIR spectra. The properties of Cobalt doped zinc oxide nanoparticles prepared through simple cost effective, Sol-gel method can be used in optoelectronics and thermally stable devices.
The present work aims at evaluating the outcome of zinc precursors on the crystal structure, shape, surface and optical properties of ZnO nanopowders. Zinc oxide nanopowders are fabricated via simple, cost-effective, low-temperature, the sol-gel method using different zinc precursors such as zinc nitrate and zinc chloride. The structural properties of the obtained ZnO nanopowders are studied using X-ray diffraction spectra and their morphology from SEM micrographs. Further, Fourier transform infrared spectra reveals the existence of functional groups that supports the formation of zinc oxide. Moreover, optical absorption and emission of ZnO nanopowders were evaluate during ultraviolet-visible and photoluminescence spectra. The results of this study revealed that the precursor is significant in altering the crystallite size, shape, optical absorption and emission entities of nanopowders. In addition, the role of zinc precursors to fabricate nanopowders that is suitable for various optoelectronic device applications were also discussed.
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