OPTICAL VIBRATIONAL AND MORPHOLOGICAL PROPERTIES OF S-Co3O4 NANOSTRUCTURED THIN FILM

Year 2017, Volume: 18 Issue: 2, 388 - 397, 30.06.2017

Tülay Hurma

https://doi.org/10.18038/aubtda.295720

Cited By: 2

Abstract

Sulphur
doped Co₃O₄ (S-Co₃O₄)
nanostructured thin film has been produced by ultrasonic spray pyrolysis (USP)
method. The film has been characterized by X-ray diffraction (XRD),
energy-dispersive X-ray spectroscopy (EDAX), Fourier transform infrared (FT-IR)
and Raman spectroscopy. The surface appearance of the film was obtained using
scanning electron microscope (SEM). Optical reflectance and transmittance
spectra were recorded with a double beam spectrophotometer equipped with an
integrating sphere. The optical constants such as refractive index, extinction
coefficient, optical conductivity, real and imaginary parts of the dielectric
constant of the film were calculated. The XRD pattern shows that the film has
only clear diffraction peaks around 2θ = 29.26^o corresponding to the
(111) plane of cubic Co₃O₄. The crystallite size was
calculated to be approximately 24 nm. The Raman measurements revealed four
peaks of Co₃O₄. Infrared spectrum of the film has been
investigated in 500–3000 cm⁻¹ region.

Keywords

S doped Co3O4, XRD, Optical constant, FT-IR, Raman

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