International Journal of Technology and Applied Science

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Synthesis and Spectroscopic studies in pure CaF2 nanomaterial

Author(s) Venkata Reddy. G. N.
Country India
Abstract Pure calcium fluoride (CaF₂) nanomaterials were successfully synthesized using the solution combustion method, a cost-effective and rapid synthesis route ideal for producing high-purity nanocrystalline materials. The exothermic redox reaction between calcium and fluorine precursors in the presence of a suitable fuel resulted in the formation of phase-pure CaF₂ nanoparticles. Structural characterization by X-ray diffraction (XRD) confirmed the formation of a single-phase cubic fluorite structure with average crystallite sizes in the nanometer range. Morphological analysis using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed nearly spherical particles with uniform distribution. Optical properties were investigated using UV–Visible spectroscopy, from which the optical band gap was calculated using Tauc’s plot, indicating a band gap in the range of ~5.4 eV, consistent with the intrinsic properties of CaF₂. FTIR spectroscopy further confirmed the presence of Ca–F bonding and absence of impurity phases. Photoluminescence (PL) spectroscopy exhibited characteristic emission peaks at 450nm at excitation of 280nm, suggesting potential for photonic and optoelectronic applications. The results demonstrate that the solution combustion method is an efficient route for synthesizing high-quality pure CaF₂ nanomaterials with
Keywords Calcium fluoride (CaF₂), Nanomaterials, Transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), UV–Visible spectroscopy (UV–Vis), Band gap energy, Photoluminescence (PL
Field Physics > Nano Technology / Nuclear
Published In Volume 6, Issue 10, Array 2015
Published On 2015-10-05
Cite This Synthesis and Spectroscopic studies in pure CaF2 nanomaterial - Venkata Reddy. G. N. - IJTAS Volume 6, Issue 10, Array 2015.
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