Abstract
Ni1-xCdxFe2O4 (0.0 ≤ x ≤ 1.0 in step of 2) spinel ferrite thin films have been synthesized by spray deposition technique. The prepared films were characterized by X-ray diffraction, Raman spectroscopy, Scanning Electron Microscopy, UV–vis spectroscopy, Photoluminescence and contact angle measurement studies. The analysis of XRD pattern reveals broad peaks exhibiting a single phase cubic spinel structure. The crystallite size obtained from Scherrer’s formula varies between 8−24 nm confirming the nanocrystalline nature. Metal cation active vibration modes, metal oxygen stretching and bending vibrations were confirmed through the Raman analysis. The FE-SEM shows that the formation of spherical agglomeration and grain size are found to be in the range of 19–38 nm. The elemental compositions of the prepared thin films were studied by EDS. The energy band gap decreases from 1.86 to 2.11 eV with increase in Cd2+ content x calculated by using UV–vis data. The Photoluminescence study showed the characteristic near-band-edge emission of presently investigated films samples at around 710 nm. All films are hydrophilic in nature conformed by contact angle measurement.
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