Structural, electronic, magnetic, optical and optoelectronic properties of the sprayed cobalt doped ZnO nanostructured thin films

Haimeur, A. El; Zarhri, Zakaryaa; Bouaouda, M.; Colin, Jean-Louis; Addou, M.; Elkenz, A.

doi:10.1088/2053-1591/aad123

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…The result obtained for the undoped gadolinium oxide thin film which is 1,666 is relatable to other research works such as M. Misha et al [2] that found it in between 1,6 and 1,8 for different temperatures and 1,6 and 1,7 for different oxygen partial pressure, also Q. S. Johnson et al [10] In addition, the graphs obtained in figure 7 shows an increase in the absorbance from undoped gadolinium oxide to 2 at then 4 at % indium doped gadolinium oxide respectively. This increase can be correlated with crystallite average size where the diminution amplify the light interactions with our thin films leading to an augmentation in it [25]. Where C is a constant, Eg is the gap energy « eV », hυ is phonon energy « eV » and « r = 1/2 » for direct band gap.…”

Section: Optical and Optoelectronic Properties Of Gd2o3mentioning

confidence: 88%

Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd₂O₃: In)

et al. 2022

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This paper featured a study on undoped and Indium doped Gadolinium oxide Gd2O3: In thin films, elaborated on a glass substrates at temperature of 500 °C by homemade Spray Pyrolysis technique, at different Indium concentrations as follow 0, 2, 4, 6 and 8 at %. This thin layers, where a subjects to a numerous characterization techniques to study the effect caused by introducing the dopant element “Indium” in Gadolinium oxide lattice on the structural properties (X-Ray Diffraction and Raman spectroscopy) and optical properties. The structural characterization carried by the X-ray diffraction (XRD) reveals a polycrystalline Monoclinic B-type structure for all Gd2O3:In thin films. Moreover, these findings are verified by the Raman spectroscopy results. Concerning the optical properties of our thin films, the optical measurements carried by UV-VIS-NIR spectrophotometer shows an increase in the transmittance value within the visible region [370-900 nm] and in the band gap energy value by raising Indium doping rate from 0 at % to 6 at %, also the disorder caused inside the thin films were estimated by the Urbach equation. That said, the 2 at % Indium doped gadolinium oxide thin film provides interesting results that can be applied in solar cells as an optical window material.

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Section: Optical and Optoelectronic Properties Of Gd2o3mentioning

confidence: 88%

Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd₂O₃: In)

et al. 2022

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“…They are of keen potentials for various applications such as spintronics, spin-valve transistors, spin light-emitting diodes, and logic devices [6][7]. DMSs obtain their magnetic properties as a result of intrinsic defects or adding external impurities within semiconductors by doping process [6][7][8]. One of the most challenges facing DMS materials to be viable for commercial application is to get Curie temperatures (Tc) above room temperature or what so called the room temperature ferromagnetism (RTFM).…”

Section: Introductionmentioning

confidence: 99%

“…One of the most challenges facing DMS materials to be viable for commercial application is to get Curie temperatures (Tc) above room temperature or what so called the room temperature ferromagnetism (RTFM). Thus, recent studies are interested in increasing Tc experimentally by controlling the different preparation conditions and through different doping mechanisms [8,9].…”

Section: Introductionmentioning

confidence: 99%

Tailoring the optical and physical properties of La doped ZnO nanostructured thin films

Ahmed

Tawfik

Elfayoumi

et al. 2019

Journal of Alloys and Compounds

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The modification and tailoring the characteristics of nanostructured materials are of great interest due to controllable and unusual inherent properties in such materials. A simple spray pyrolysis technique is used to prepare pure and La-doped ZnO films. The influence of La concentration (0, 0.33, 0.45, 0.66, 0.92 and 1.04 at. %) on the structural, optical, and magnetic properties of ZnO was investigated. The exact nominal compositions of the prepared films were determined from the field emission scanning electron microscope occupied with EDX. X-ray diffraction confirmed that the samples possessed single-phase hexagonal wurtzite structure. The main crystal size was decreased from 315.50 Å to 229.04 Å depending on La dopant concentration. This decrease is due to the small ionic radius of Zn ions in compared to La ions.The band gap values were found to be depend strongly on La 3+ ion content. Introducing La into ZnO induces a clear magnetic moment without any distortion in the geometrical symmetry, it 2 also reveals the ferromagnetic coupling. The saturation magnetic moment of 1.04 at% La-doped ZnO shows the highest value of 0.014 emu, which is ~23 times higher than pure ZnO sample.The obtained results were discussed and compared with other literature data and showed an acceptable agreement.

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Effect of Co2+ substitution into zinc oxide host lattice via electrodeposition cum hydrothermal approach for enhancing dye synthesized solar cell performance

et al. 2022

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Structural, electronic, magnetic, optical and optoelectronic properties of the sprayed cobalt doped ZnO nanostructured thin films

Cited by 4 publications

References 15 publications

Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd₂O₃: In)

Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd₂O₃: In)

Tailoring the optical and physical properties of La doped ZnO nanostructured thin films

Effect of Co2+ substitution into zinc oxide host lattice via electrodeposition cum hydrothermal approach for enhancing dye synthesized solar cell performance

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Structural, electronic, magnetic, optical and optoelectronic properties of the sprayed cobalt doped ZnO nanostructured thin films

Cited by 4 publications

References 15 publications

Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd2O3: In)

Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd2O3: In)

Tailoring the optical and physical properties of La doped ZnO nanostructured thin films

Effect of Co2+ substitution into zinc oxide host lattice via electrodeposition cum hydrothermal approach for enhancing dye synthesized solar cell performance

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Product

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Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd₂O₃: In)

Microstructural, morphological and optical properties of sprayed thin films of indium doped gadolinium oxide (Gd₂O₃: In)