Structural and Optical Properties of Sprayed Ba Doped CdS Nanostructure Thin Films

Hassan, Ehssan S.; Khudhair, Dawood M.; Muhammad, Shawki Khalaf; Jabbar, Ali Mohammed; Dawood, Mohammed O.; Habubi, Nadir F.; Chiad, Sami Salman

doi:10.1088/1742-6596/1660/1/012066

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…In chemical spraying processes, film development processes are performed either by condensing ion with ion, or by adsorbing the colloidal solution from the surface of the substrate [4]. Many methods are used for the preparation of cadmium sulfide, including vacuum thermal evaporation [5], RF and DC sputtering [6], screen printing [7], chemical bath deposition [8], Spin coated [9], hot injection method [10], but among these methods chemical spraying was more affordable and easy to prepare thin films from chemical reactions in addition the grown films were homogeneous and high adhesion [11][12][13]. Optical characteristics like permeability, absorption and energy gap values are important for gas sensing applications [14].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of Cadmium Sulfide under the Influence of Both Substrate Temperature and Gas Operation

Hassan¹,

Razzaq²,

Qutbi³

et al. 2021

Nano BioMed ENG

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The importance of this research is to study the effect of changing the temperature at the same time on each of the prepared samples and during the gas sensing processes, the effects of substrate temperature T s were investigated after precipitation by the microstructural and optical characteristics of cadmium sulfide using thermal spraying method with different temperatures of (300, 400, and 500) °C. The structural investigations of these films were studied, showing that the increases in substrate temperature were shown cubic and hexagonal phases according to ICDD card no. (21-0929) and (43-0989). The dramatic change occurred at 500 °C in changing the phase from hexagonal to a cubic structure. XRD exhibits a dominant plane at (200) for different substrate temperatures. Optical transmittance, absorption coefficient, and energy gap values were calculated by UV/VIS spectrophotometer. These results showed that the band gap values decreased with increasing substrate temperature. The gas sensitivity was tested for NO 2 gas at several working temperatures from 175 °C to 250 °C, and various gas concentrations from 150 ppm to 200 ppm and found that the sensitivity increase with increasing both the operating temperature and gas concentration for a T s at 500 °C which offer also the best crystallization the best sensitivity at an operating temperature of 175 °C is 75% at a gas concentration of 150 ppm.

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Section: Introductionmentioning

confidence: 99%

Sensitivity of Cadmium Sulfide under the Influence of Both Substrate Temperature and Gas Operation

Hassan¹,

Razzaq²,

Qutbi³

et al. 2021

Nano BioMed ENG

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Structural and optical properties of In-doped CdS nanostructures: A comprehensive study

Bagheri,

Kafashan

2024

Ceramics International

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Modifications of some physical properties of nanostructured indium doped Co3O4 thin films

Chichan,

Jasim,

Shaban

et al. 2024

DJNB

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Using the chemical spray pyrolysis (CSP) technique, nanostructured undoped and Co3O4:In thin films are deposited. The effect of indium doping content in Cobalt ranged from 1% to 3% on optical, structural, and topographical properties of Co3O4 nanostructured thin films. No new peaks belonging to the In phase were seen, according to X-ray diffraction research, which revealed that pure and Co3O4: In thin films are polycrystalline in and cubic phase with (111), (311), (400), and (511) preferable orientation for all filmsThe Scherrer formula computation of average crystallite size shows that the size of Nano crystallites grows when doping is enhanced. AFM micrographs demonstrated how the surface shape of the films was discovered to be influenced by the inclusion of indium in the Co3O4 location.SEM images of Undoped Co3O4 and Co3O4:In films (CSP technique), showing separate semi-spherical blocks (120-200 nm) of nanoparticles (<30 nm). Band gap values for pure and doped were 2.52 to 2.38 eV. Resistance increases with increases Indium-doping, indicating more charge carriers and potential surface roughness influence. Sensitivity decreases with higher Indium concentrations, attributing to enhanced crystallinity and nano-crystalline size.

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Structural and Optical Properties of Sprayed Ba Doped CdS Nanostructure Thin Films

Cited by 5 publications

References 17 publications

Sensitivity of Cadmium Sulfide under the Influence of Both Substrate Temperature and Gas Operation

Sensitivity of Cadmium Sulfide under the Influence of Both Substrate Temperature and Gas Operation

Structural and optical properties of In-doped CdS nanostructures: A comprehensive study

Modifications of some physical properties of nanostructured indium doped Co3O4 thin films

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