Impact of indium ions on some properties of TiO2 thin films for sensor applications

Doubi, Youssef; Hartiti, Bouchaib; Siadat, Maryam; Arba, Youssef; Stitou, Mohamed; Labrim, Hicham; Nkuissi, Hervé Joël Tchognia; Fadili, Salah; Tahri, Mounia; Thévenin, Philippe; Losson, Etienne

doi:10.1016/j.matpr.2022.06.026

Cited by 8 publications

(7 citation statements)

References 20 publications

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“…This application requires semiconductors with high absorbance, low transmittance and small energy band gap energy. Moreover, our results are close to those obtained of CuO, CZTS, CdTe and CIGS which are well known materials and the most used as an absorber layers in solar cells applications [44–47] …”

Section: Resultssupporting

confidence: 86%

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Experimental Investigation of Pure Spinel Mn₃O₄ Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

et al. 2023

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The semiconductor realization is a very significant stage in gas sensor application. Herein, the Mn3O4 semiconductor was deposited using chemical spray pyrolysis. The effect of deposition temperature on structural, vibrational optical and electrical Mn3O4 thin layers properties were investigated through: X‐ray diffraction, Raman spectroscopy, UV‐visible spectrophotometer, and two points electrometers respectively. The X‐ray diffraction showed the appearance of spinel phase of tetragonal Mn3O4 with strong formation direction along (101) plan and without any secondary phase indicating the formation of pure Mn3O4. The Raman spectroscopy confirmed the results obtained in XRD and certified the high‐quality formation of Mn3O4. In addition, the crystallinity improvement (the increase of crystallite size and the decrease of dislocation density) was caused by the increasing of deposition temperature from 350 °C to 450 °C. Optical properties such as transmittance, absorbance and band gap energy were extracted by UV‐Visible spectrophotometer. Thus, low transmittance, high absorbance and small band gap energy were observed at the highest substrate temperature (450 °C). The electrical conductivity showed good values between 4.83 and 13.89 mS.cm−1. These properties make Mn3O4 an appropriate material to be used as a sensitive layer in gas sensors applications.

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Section: Resultssupporting

confidence: 86%

“…Moreover, our results are close to those obtained of CuO, CZTS, CdTe and CIGS which are well known materials and the most used as an absorber layers in solar cells applications. [44][45][46][47]…”

Section: Optical Propertiesmentioning

confidence: 99%

Experimental Investigation of Pure Spinel Mn₃O₄ Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

et al. 2023

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“…Generally, high crystallization of thin films indicates lower dislocation density. [33] The high crystallite size and low dislocation density of the sample prepared at 500 °C confirm the good crystallinity of Co 3 O 4 thin layer prepared at this condition. Also, the microstrain for cobalt oxide prepared by different deposition temperatures decreased from 1.…”

Section: Structural Propertiessupporting

confidence: 53%

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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“…These optical parameters were estimated in previous works. [ 38,39 ] The refractive index describes the speed at which a light beam passes through a material. [ 40 ] The refractive index of the TiO 2 layer increases with the increase in solution flow rate.…”

Section: Resultsmentioning

confidence: 99%

“…This parameter is calculated by using the values of the refractive index and the extinction coefficient. [ 39 ]…”

Section: Resultsmentioning

confidence: 99%

The High Impact of Solution Flow Rate on Optical Properties of TiO₂ Thin Layers for Optoelectronic Applications

Doubi

Hartiti

Siadat

et al. 2022

Cryst. Res. Technol.

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The semiconductor's realization is a very significant stage of optoelectronics devices. In this work, an elaboration of the TiO2 semiconductor is made with various solution flow rates via spray pyrolysis. The structural and optical properties of pure TiO2 are investigated with several characterization techniques which include: X‐ray diffraction (XRD), Raman spectroscopy, and UV–vis spectrophotometry. The XRD of elaborated TiO2 layers exhibits nanocrystalline nature with a preferential orientation at the (101), a unique phase of anatase TiO2. The apparition of vibration modes in Raman spectra confirms the TiO2 formation with a single phase. The produced TiO2 has an optical transmission varying from 90% to 70% in the visible wavelength. The energy band gaps are 3.42, 3.32, and 3.28 eV for the TiO2 elaborated at 1, 1.5, and 2 mL min−1, respectively which prove the semiconducting properties of TiO2. All other optical parameters such as refractive index (n), extinction coefficient (k), and dielectric constant (εr, εi) vary with the variation of solution flow rate. These investigations discover that the properties of TiO2 layers can be adjusted by solution flow rate. It seems that the process of spray pyrolysis provides a facile way to control the quality of TiO2 thin layers.

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Impact of indium ions on some properties of TiO2 thin films for sensor applications

Cited by 8 publications

References 20 publications

Experimental Investigation of Pure Spinel Mn₃O₄ Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

Experimental Investigation of Pure Spinel Mn₃O₄ Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

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

The High Impact of Solution Flow Rate on Optical Properties of TiO₂ Thin Layers for Optoelectronic Applications

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Impact of indium ions on some properties of TiO2 thin films for sensor applications

Cited by 8 publications

References 20 publications

Experimental Investigation of Pure Spinel Mn3O4 Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

Experimental Investigation of Pure Spinel Mn3O4 Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

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

The High Impact of Solution Flow Rate on Optical Properties of TiO2 Thin Layers for Optoelectronic Applications

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Experimental Investigation of Pure Spinel Mn₃O₄ Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

Experimental Investigation of Pure Spinel Mn₃O₄ Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

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

The High Impact of Solution Flow Rate on Optical Properties of TiO₂ Thin Layers for Optoelectronic Applications