Structural and optical properties of TiO2:NiO nanoparticles thin films prepare by chemical spray pyrolysis

Wasan A Al-Taa'Y,Bushra A Hasan

doi:10.30723/ijp.v19i49.632

Wasan A Al-Taa'Y, Bushra A Hasan

Open Access

https://doi.org/10.30723/ijp.v19i49.632

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Abstract

The properties of structural and optical of pure and doped nano titanium dioxide (TiO2) films, prepared using chemical spray pyrolysis (CPS) technique, with different nanosize nickel oxide (NiO) concentrations in the range (3-9)wt% have been studied. X-Ray diffraction (XRD) technique where using to analysis the structure properties of the prepared thin films. The results revealed that the structure properties of TiO2 have polycrystalline structure with anatase phase. The parameters, energy gap, extinction coefficient, refractive index, real and imaginary parts were studied using absorbance and transmittance measurements from a computerized ultraviolet visible spectrophotometer (Shimadzu UV-1601 PC) in the wavelengths range (300-800)nm. Optical properties of TiO2 affected by the adding of NiO impurity where the transmittance increased as NiO concentration increased but with more adding the transmittance returned to decrease again. It was found the extinction coefficient, refractive index, real and imaginary parts values decreased with increasing doping percentage up to 7% and then increases occur one more again at 9%. Energy gap values increased after doping with NiO where the values lies in the range was 3.31 to 3.51 eV .

Highlights

Key wordsThe structural and optical properties of pure and doped nano titanium dioxide (TiO2) films, prepared using chemical spray pyrolysis (CSP) technique, with different nano-size nickel oxide (NiO) concentrations in the range (3-9) wt% have been studied
There have been increasing application in a wide range of fields for the use of metal oxides
Experimental work A pure semiconductor metal oxide TiO2 mixed with an inorganic material nickel oxide (NiO) at different concentrations (3, 5, 7 and 9) wt% was prepared in this work

Summary

Key words

The structural and optical properties of pure and doped nano titanium dioxide (TiO2) films, prepared using chemical spray pyrolysis (CSP) technique, with different nano-size nickel oxide (NiO) concentrations in the range (3-9) wt% have been studied. TiO2 metal oxide, NiO nickle oxide, structure and Optical properties. The parameters, energy gap, extinction coefficient, refractive index and real and imaginary parts were studied using absorbance and transmittance measurements from a computerized ultraviolet visible spectrophotometer in the wavelengths range (300-800) nm. Optical properties of TiO2 were affected by the addition of NiO impurity where the transmittance increased as NiO concentration increased but Article info. It was found that the extinction coefficient, refractive index and real and imaginary parts values decreased with increasing the doping percentage up to 7% and increases again at 9%.

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