Influence of tungsten doping on the structural, morphological features, and optical properties of the Co3O4 nanoparticles

In this research article, nanocrystalline Co3O4 and Co3O4 with three different weight percentages (1, 3 and 5) of
W-doping were synthesized by involved microwave synthesis followed by a calcined process. The spectral
characterizations of prepared Co3O4 and Co3O4 with W-doping samples were assessed with the aid of XRD, FT-IR, EDX, optical spectra measurement and luminescence, as well as chromaticity studies. Using the aforementioned tools, notable spectral shifts such as vibration band wavenumber, absorption/luminescence, and colour coordinates, as well as elemental composition variations of synthesized Co3O4 material, were observed under the impact of W-doping. Topographical surface features were also significantly varied in W-dopant Co3O4 particles, when compared to the pure Co3O4 through scrutiny via SEM and TEM measurement. These all feature changes happened due to the ionic radius difference between W and Co ions. The finding optical properties of synthesized material results suggests to implication in potential applications of photonic devices.