Optical and electrochemical properties of spinel cubic nanostructured thin film Co3O4 prepared by spray pyrolysis

Soltani, Sahar; Rozati, Seyed Mohammad; Askari, Mohammad Bagher

doi:10.1016/j.physb.2021.413464

Cited by 9 publications

(2 citation statements)

References 25 publications

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“…The intensity of peaks increased with the increase of deposition temperature from 425 to 500 °C (may be due to the amelioration of Co 3 O 4 thin layers quality). The obtained XRD results demonstrated visibly the superiority of our Co 3 O 4 thin layers to the others recently published, having a noise peaks and without any preferred formation direction, [29,30] and elaborated by high-cost techniques needing (Ar and oxygen) sources. [31] Figure 1 shows the hkl-indexed (XRD) profiles of pure Co 3 O 4 / glass films.…”

Section: Structural Propertiessupporting

confidence: 67%

The High Efficient Investigations of Properties of Co₃O₄ Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

Doubi

Hartiti

Siadat

et al. 2023

Physica Rapid Research Ltrs

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Herein, the cobalt oxide thin films are elaborated by spray pyrolysis technique. The effect of temperature of substrates on several properties of cobalt oxide is studied. The thin layers are characterized by using X‐ray diffraction (XRD), Raman spectrometry (RS), and UV–vis spectrophotometer. The XRD analysis shows that Co3O4 thin layers have been formed along <111> preferential orientation. The RS displays the characteristic vibration modes of cobalt oxide phase, which confirms the formation of a single phase of spinel Co3O4 thin layers. The UV–vis spectrophotometer allows us to investigate the optical properties such as the absorbance, the transmittance, and the optical bandgap. The variation of electrical properties with the variation of temperature deposition confirms the high impact of the effect that study to make the cobalt oxide an important candidate for gas sensor devices.

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Section: Structural Propertiessupporting

confidence: 67%

The High Efficient Investigations of Properties of Co₃O₄ Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

Doubi

Hartiti

Siadat

et al. 2023

Physica Rapid Research Ltrs

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“…The nano-and microstructures of the Co 3 O 4 electrodes prepared by different methods have electrochemical performance that varies according to each other. Soltani et al showed that the Co 3 O 4 structures produced by spray pyrolysis with an average grain size of 30 nm which exhibited a specific capacity of 1800 F g −1 at a scan rate of 10 mV s −1 [10]. Chemical bath deposited Co 3 O 4 electrodes showed specific capacitance of 1576 F g −1 as an electrode in another study [11].…”

Section: Introductionmentioning

confidence: 98%

Surface dynamics and electrochemical examination of Co₃O₄ films by iron doping

Yakar,

Sarf,

Bayirli

et al. 2024

Surf. Topogr.: Metrol. Prop.

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This study focused on Co3O4 films, which were prepared by cost-effective chemical bath deposition on In:SnO2 (ITO) substrates with iron doping concentrations ranging from 2 to 6 mol %. Structural properties were investigated by XRD as well as nanotexture of Fe:Co3O4 films was captured via SEM and detailed fractal analysis was analyzed in each prepared film. Effective using of prepared Fe:Co3O4 electrodes for electrochemical charge storage applications has been examined by using CV and EIS. From x-ray patterns, spinel cubic structure of Co3O4 was observed in all samples, while peaks with Co2O3 and substrate indexed peaks were also shown. Pure and iron doped Co3O4 surfaces have spherical agglomerative forms while porous structures were observed in 4% Fe:Co3O4 samples. Redox peaks induced by Faradaic reactions in the CV plots present pseudo-capacitive nature for all electrodes and improves charge transfer process in 4% Fe:Co3O4 and 6% Fe:Co3O4 from EIS measurements.Additionally, using scaling theory, the coverage ratio, fractal dimensions, cluster sizes and interface critical exponent values of the superficial hetero morphology of the samples are calculated. While the coating rate decreases according to the iron concentration, fractal dimensions increase. However, as the number of clusters increases, the average cluster size decreases. The interface critical exponent value shows an irregular change.

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Correlation Between Structural, Electrical, and Optical Properties of ZnO:In for Ethanol Gas Sensing Application

Davoodi,

Rozati,

Soltani

2024

J. Electron. Mater.

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Optical and electrochemical properties of spinel cubic nanostructured thin film Co3O4 prepared by spray pyrolysis

Cited by 9 publications

References 25 publications

The High Efficient Investigations of Properties of Co₃O₄ Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

The High Efficient Investigations of Properties of Co₃O₄ Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

Surface dynamics and electrochemical examination of Co₃O₄ films by iron doping

Correlation Between Structural, Electrical, and Optical Properties of ZnO:In for Ethanol Gas Sensing Application

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Optical and electrochemical properties of spinel cubic nanostructured thin film Co3O4 prepared by spray pyrolysis

Cited by 9 publications

References 25 publications

The High Efficient Investigations of Properties of Co3O4 Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

The High Efficient Investigations of Properties of Co3O4 Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

Surface dynamics and electrochemical examination of Co3O4 films by iron doping

Correlation Between Structural, Electrical, and Optical Properties of ZnO:In for Ethanol Gas Sensing Application

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The High Efficient Investigations of Properties of Co₃O₄ Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

The High Efficient Investigations of Properties of Co₃O₄ Nanostructured by Facile Spray Pyrolysis Technique for Future Gas Sensors Application

Surface dynamics and electrochemical examination of Co₃O₄ films by iron doping