Studies of Structural, Optical, and Raman Analysis of Ni‐Substituted CoFe2O4

• Published in: Physica status solidi. A, Applications and materials science Vol. 221; no. 18
• Main Authors: Sarita, Anchal, Priya, Choudhary, Shobha Ram, Rulaniya, Mahendra Singh, Kumar, Arvind, Dolia, Satya Narain, Alvi, Parvez Ahmad, Choudhary, Banwari Lal
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01-09-2024
• Subjects: Chemical synthesis; Cobalt ferrites; Crystallites; Cubic lattice; Diffraction patterns; Doping; Emission spectra; Excitation spectra; ferrite; FESEM; Field emission microscopy; Fourier transforms; FTIR; Infrared analysis; Infrared spectra; Infrared spectroscopy; Lattice parameters; Lattice vibration; Photoluminescence; Polycrystals; Raman; Raman spectra; Raman spectroscopy; Sol-gel processes; Spectrum analysis; Vibration mode; X-ray diffraction; XRD
• ISSN: 1862-6300; 1862-6319
• DOI: 10.1002/pssa.202400083

The polycrystalline ferrite samples of NixCo1−xFe2O4 (x = 0.1, 0.3, 0.5, 0.7, and 0.9) are synthesized through the well‐known sol–gel method. The X‐ray diffraction (XRD) pattern confirms the cubic single‐phase spinel structure. Rietveld refinement indicates the absence of any other impurity phases in the samples. Additionally, XRD analysis reveals variations in lattice parameters corresponding to the doping. The Debye Scherer formula has been used to calculate the crystallite size of the samples, the crystallite size of the samples existing in the nanoregime. The results from field emission scanning electron microscopy confirm the morphological structure of the prepared samples. Additionally, the energy‐dispersive X‐ray spectra confirm the elemental composition and purity of the synthesized samples, validating the appropriateness of doping in the polycrystalline samples. The Raman spectra give the information about the vibrational modes in the sample. The Fourier transform infrared rays spectrum shows that the samples have a broad range of chemical interactions. The photoluminescence spectroscopy (PL) suggests strong luminescence in the visible range. PL spectroscopy provides that PL intensity decreases with increasing excitation wavelength due to nanosize of the particle.
Polycrystalline ferrite samples of NixCo1−xFe2O4 (x = 0.1, 0.3, 0.5, 0.7, and 0.9) are synthesized via the sol–gel method and confirmed to have a cubic single‐phase spinel structure. Morphological structure and elemental composition are validated by field emission scanning electron microscopy and electron diffraction spectroscopy, respectively. Raman spectra provide vibrational mode information, while fourier transform infrared spectroscopy indicates diverse chemical interactions. Photoluminescence spectroscopy shows strong visible luminescence, with intensity decreasing as excitation wavelength increases.