Physical properties of nanostructured CeO2 thin films grown by SILAR method

Khan, Ishaque Ahmed; Belkhedkar, M. R.; Salodkar, R. V.; Ubale, A.U.

doi:10.1063/1.5032437

Cited by 6 publications

(3 citation statements)

References 24 publications

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“…The A region is an infrared absorption band between 1750 cm −1 and 1500 cm −1 , and the B region is an infrared absorption band between 700 cm −1 and 450 cm −1 . In the A region, it was found that the three kinds of samples showed H–O–H stretching vibration bands near 1600 cm −1 , and the asymmetric stretching vibration band of Ce–O of Ce-doped α-Fe 2 O 3 appear at 1633 cm −1 , this is consistent with the results of Ishaque et al [30]. Compared with the FTIR results of pure CeO 2 crystals, a red shift of 2 cm −1 of Ce–O occurred in Ce-doped α-Fe 2 O 3 .…”

Section: Resultssupporting

confidence: 90%

Effect of Ce Doping on the Structure and Chemical Stability of Nano-α-Fe2O3

et al. 2019

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Ce-doped nano-α-Fe2O3 was successfully synthesized via the hydrothermal method. The properties of the prepared particles were studied by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS) and electrochemical methods. It was found that the Ce element can be doped into the α-Fe2O3 lattice resulting in lattice distortion, which can refine the grain and improve the crystal surface’s integrity significantly. In addition, doping of Ce element can shorten the Fe–O bond length in the α-Fe2O3 crystal, cause a blue shift of the stretching vibration band, enhance binding energy of Fe–O and the chemical stability of the α-Fe2O3 crystal.

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Section: Resultssupporting

confidence: 90%

Effect of Ce Doping on the Structure and Chemical Stability of Nano-α-Fe2O3

et al. 2019

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“…After the reduction process, the two peaks located at positions of 526 cm − 1 and 1423 cm − 1 , in the sample 5Fe5Ce-Ni_Alloy, were associated with symmetric and asymmetric vibrations, respectively, of the Ce-O bond in a distorted cubic lattice of CeO 2 doped with lower valence cations [42]. While the peaks at 661 cm − 1 and 1542 cm − 1 were attributed to stretching vibrations of the Ce-O bond in the undoped CeO 2 , crediting the previously introduced hypothesis that during the reduction process a part of the Fe 3+ and Ni 2+ ions migrates towards the surface of the support, with the formation of metal nanoparticles and a subsequent rearrangement of the cubic ceria lattice [43,44].…”

Section: Tablesupporting

confidence: 57%

Mesoporous Ce–Fe–Ni nanocomposites encapsulated in carbon-nanofibers: Synthesis, characterization and catalytic behavior in oxygen evolution reaction

Rosmini

Tsoncheva

Kovatcheva

et al. 2022

Carbon

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“…Moreover, ceria (CeO 2 ) thin film has attracted much attention and widely explored due to its extraordinary characteristics. Mainly, its high transmittance of visible light, wide direct band gap of 3.2 eV, high stability, high dielectric constant and high refractive index [13][14][15], consequently, ceria thin films have been used for technological applications such as optoelectronics [16,17], solid oxide fuel cells [18,19], energy storage [20,21] and catalysts [22][23][24][25]. Moreover, CeO 2 has been used as a corrosion protective coating [26,27].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystallography, Microstructure, Crystal Defects, Optical and Optoelectronic Properties of ZnO:CeO2 Mixed Oxide Thin Films

et al. 2020

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We report the synthesis and characterization of pure ZnO, pure CeO2, and ZnO:CeO2 mixed oxide thin films dip-coated on glass substrates using a sol-gel technique. The structural properties of as-prepared thin film are investigated using the XRD technique. In particular, pure ZnO thin film is found to exhibit a hexagonal structure, while pure CeO2 thin film is found to exhibit a fluorite cubic structure. The diffraction patterns also show the formation of mixed oxide materials containing well-dispersed phases of semi-crystalline nature from both constituent oxides. Furthermore, optical properties of thin films are investigated by performing UV–Vis spectrophotometer measurements. In the visible region, transmittance of all investigated thin films attains values as high as 85%. Moreover, refractive index of pure ZnO film was found to exhibit values ranging between 1.57 and 1.85 while for CeO2 thin film, it exhibits values ranging between 1.73 and 2.25 as the wavelength of incident light decreases from 700 nm to 400 nm. Remarkably, refractive index of ZnO:CeO2 mixed oxide-thin films are tuned by controlling the concentration of CeO2 properly. Mixed oxide-thin films of controllable refractive indices constitute an important class of smart functional materials. We have also investigated the optoelectronic and dispersion properties of ZnO:CeO2 mixed oxide-thin films by employing well-established classical models. The melodramatic boost of optical and optoelectronic properties of ZnO:CeO2 mixed oxide thin films establish a strong ground to modify these properties in a skillful manner enabling their use as key potential candidates for the fabrication of scaled optoelectronic devices and thin film transistors.

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Physical properties of nanostructured CeO2 thin films grown by SILAR method

Cited by 6 publications

References 24 publications

Effect of Ce Doping on the Structure and Chemical Stability of Nano-α-Fe2O3

Effect of Ce Doping on the Structure and Chemical Stability of Nano-α-Fe2O3

Mesoporous Ce–Fe–Ni nanocomposites encapsulated in carbon-nanofibers: Synthesis, characterization and catalytic behavior in oxygen evolution reaction

Synthesis, Crystallography, Microstructure, Crystal Defects, Optical and Optoelectronic Properties of ZnO:CeO2 Mixed Oxide Thin Films

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