Structural and optical properties of hexagonal ZnO nanostructures grown by ultrasonic spray CVD

Narin, P.; Kutlu, E.; Atmaca, G.; Atılgan, Abdullah; Yıldız, Abdullah; Li̇şesi̇vdi̇n, S. B.

doi:10.1016/j.ijleo.2018.04.089

Cited by 16 publications

(5 citation statements)

References 29 publications

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“…In addition, the angular positions of reflections (100) and (002) for all the synthesized zinc oxide films correlate well with literature data [15][16][17][18]. A joint analysis of the diffraction patterns for a zinc oxide film synthesized by pulsed laser ablation of a high-purity target of pressed ZnO powder and the diffraction patterns corresponding to magnetron sputtering of a ZnO target [4,[14][15][16]] revealed that diffraction maxima (100), (101 ), (102), and (110) were lacking in the X-ray diffraction patterns of samples produced by magnetron sputtering.…”

Section: Resultssupporting

confidence: 82%

Structural and photoelectric properties the thin film ZnO on LiTaO-=SUB=-3-=/SUB=- substrate

2022

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The results of the study of the structural and photoelectric properties of the ZnO-LiTaO3 thin-film structure are presented. The results X-ray structural analysis and results atomic-force microscopy of the surface zinc oxide thin films synthesized on a single-crystal lithium tantalite substrate and on a KU-1 quartz substrate are presented. The spectral dependence of photoconductivity in the thin film structure of ZnO-LiTaO3 and the structure of ZnO-quartz in the ultraviolet and visible spectral ranges are presented. Keywords: zinc oxide, laser ablation, ferroelectric materials, X-ray structural analysis, atomic-force microscopy surface, photoconductivity, method Tikhonov-Lavrentiev regularization.

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Section: Resultssupporting

confidence: 82%

Structural and photoelectric properties the thin film ZnO on LiTaO-=SUB=-3-=/SUB=- substrate

2022

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“…Various methods have been applied to synthesize doped ZnO, such as sol-gel [7][8][9], hydrothermal [10][11][12], combustion [13][14][15] and chemical vapour deposition [16,17]. However, all of these methods except sol-gel require severe reaction conditions such as high temperature, sophisticated techniques, high purity of gas, adjustable gas flow rate, expensive raw materials and so on.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on photocatalytic activity of transition metals (Ag and Ni)-doped ZnO nanomaterials synthesized via sol–gel method

et al. 2020

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Ag and Ni/ZnO photocatalyst nanostructures were successfully synthesized by a sol–gel method. In this work, the photocatalyst sample was systematically studied based on several factors affecting the performance of photocatalyst, which are size, morphology, band gap, textural properties and the number of active sites presence on the surface of the nanocatalyst. X-ray diffraction revealed that Ag/ZnO nanomaterials experienced multiple phases, meanwhile for Ni/ZnO the phase of nanomaterials were pure and single phase for stoichiometry less than 5%. Field emission scanning electron microscope (FESEM) showed almost all of the synthesized nanomaterials possessed a mixture of nanorods and spherical-like shape morphology. The Ag/ZnO showed high photocatalytic activity, producing at least 14th trials of nanocatalyst reusability on degradation of methyl orange under UV irradiation. Interestingly, this phenomenon was not observed in larger surface area of Ni/ZnO nanomaterials which supposedly favour photocatalytic activity, but instead producing poor photocatalytic performance. The main reasons were studied and exposed by temperature-programmed desorption of carbon dioxide (TPD–CO 2 ) which showed that incorporation of Ag into ZnO lattice has enhanced the number of active sites on the surface of the nanocatalyst. Whereas incorporation of Ni in ZnO has lowered the number of active sites with respect to undoped ZnO. Active sites measurement is effective and significant, providing opportunities in developing an intensive study as an additional factor.

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“…The position of the maxima of the narrow UV photoluminescence bands and their spectral half-width suggest that they are similar to the exciton photoluminescence band [13]. Such a ratio between the intensities of the UV photoluminescence bands of the two samples under study can be explained as follows: the process responsible for intense photoluminescence in the UV spectral range is the recombination of excitons in the bulk of the ZnO layer [14]. The shift of the UV photoluminescence band by 3 nm toward longer wavelengths may be due to the fact that the observed photoluminescence in the zinc oxide layer of nanorods hydrothermally deposited on ferroelectric substrates is the total effect of luminescence from both exciton complexes and deep traps present in the bulk zinc oxide layer of nanorods.…”

Section: Results and Their Discussionmentioning

confidence: 77%

Some Properties of Semiconductor-Ferroelectric Structures

Azamatov,

Utamuradova,

Yuldoshev

et al. 2023

East Eur. J. Phys.

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This paper presents the properties of semiconductor-ferroelectric structures consisting of ZnO nanorods grown at low temperatures by the hydrothermal method on LiNbO3 and LiNbO3:Fe substrates. The resulting structures were analyzed by scanning electron microscope, photoluminescence, and spectrophotometry. SEM images and spectra, absorption spectra, and photoluminescence spectra in the ultraviolet and visible ranges are presented. The studies have shown the possibility of using, along with others, the hydrothermal method for synthesizing Zn(NO3)26H2O and C6H12N4 to obtain arrays of ZnO nanorods as a sensitive element of surfactant-based UV radiation sensors.

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Structural and optical properties of hexagonal ZnO nanostructures grown by ultrasonic spray CVD

Cited by 16 publications

References 29 publications

Structural and photoelectric properties the thin film ZnO on LiTaO-=SUB=-3-=/SUB=- substrate

Structural and photoelectric properties the thin film ZnO on LiTaO-=SUB=-3-=/SUB=- substrate

Comparative study on photocatalytic activity of transition metals (Ag and Ni)-doped ZnO nanomaterials synthesized via sol–gel method

Some Properties of Semiconductor-Ferroelectric Structures

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