Influence of the Zn plasma kinetics on the structural and optical properties of ZnO thin films grown by PLD

Leon, J.; Pérez-Centeno, A.; Gómez-Rosas, G.; Mariscal, Antonio Joaquín Franco; Serna, Rosalía; Santana-Aranda, M. A.; Quiñones-Galván, J.G.

doi:10.1007/s42452-019-0497-1

Cited by 11 publications

(3 citation statements)

References 39 publications

(65 reference statements)

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“…This change in orientation was also noted by Ayana et al [39]in ZnO thin films produced using spray pyrolysis on p-type Si substrate. Similarly, Leon et al [40] conducted experiments depositing ZnO on Si and glass substrates using PLD, where they adjusted deposition parameters to achieve films oriented exclusively in the (101) direction without any presence of (002). Fujimura et al [41] calculated surface energy density values for different orientations, with (002), (110), and (100) measuring 9.9, 12.3, and 20.9 eV nm −2 , respectively.…”

Section: Structural Propertiesmentioning

confidence: 99%

Properties of spray pyrolysis deposited Zr-doped ZnO thin films and their UV sensing properties

Alasmari,

Abd-Elraheem,

Aboud

et al. 2024

Phys. Scr.

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This study investigated the characteristics of Zr-doped ZnO thin films with varying Zr doping concentrations. X-ray diffraction (XRD) analysis confirmed the presence of the ZnO hexagonal phase without any additional phases detected. The crystallite size was determined using Scherrer’s equation and Halder-Wagner equation, revealing distinct trends as the Zr content increased. The impact of Zr doping concentration on structural properties such as lattice parameters was also explored. Field emission scanning electron microscopy (FESEM) images indicated agglomeration, with a peak value observed at Zr-5wt% of 175 nm that decreased at higher Zr contents. Optical properties exhibited minor variations with increasing Zr content, with the maximum band gap recorded at 3.28 eV for Zr-7wt% and Zr-10wt% films. Utilizing the Spitzer-Fan model, the high-frequency dielectric constant peaked at 14.26 for Zr-7wt% films. Optical mobility displayed fluctuations with rising Zr content. Direct current (DC) conductivity results unveiled two donor levels in the deposited films, showcasing minimum activation energies of 0.23 and 0.165 eV for high and low-temperature ranges in the Zr-3wt% film. Furthermore, the response to UV light illumination at a wavelength of 365 nm was examined, revealing notable changes in rise and decay times with varying Zr content. Overall, this comprehensive analysis sheds light on the intricate interplay between Zr doping concentrations and the physical properties of ZnO thin films, offering valuable insights for potential applications in various technological fields.

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Section: Structural Propertiesmentioning

confidence: 99%

Properties of spray pyrolysis deposited Zr-doped ZnO thin films and their UV sensing properties

Alasmari,

Abd-Elraheem,

Aboud

et al. 2024

Phys. Scr.

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“…However, the selection of the synthesis method depends on the specific requirements of the application, the desired thickness, uniformity of the film, and surface states, as well as the equipment and resources available. Sputtering, Molecular Beam Epitaxy (MBE), Pulse Laser Deposition (PLD), and Metal-Organic Chemical Vapor Deposition (MOCVD) are considered as complicated and expensive methods, which involve sophisticated experimental apparatus and specific conditions [27][28][29][30][31][32]. Soft chemistry methods such as spray pyrolysis, dip-and spin-coating, and electrodeposition are regarded as relatively easy and inexpensive techniques [33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Electroplating of hydrophobic/hydrophilic ZnO nano-structural coatings on metallic substrates

Belamri,

Boumaza,

Boudjadar

2023

Phys. Scr.

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In the present work, ZnO thin film is shown as a coating on an aluminum substrate. In order to synthesize ZnO thin films, electroplated Zn thin layers were thermally oxidized in atmospheric air for different times (1h–4h) at a fixed annealing temperature of 500 °C. The samples were characterized by scanning electron microscopy (FEG-SEM) equipped with energy dispersive x-ray analysis (EDX), a profilometer, x-ray diffraction (XRD), and Raman spectroscopy. The wettability properties of the synthesized films were evaluated by measuring the contact angle between the surface of the films and a deposited water drop (WCA). The FEG-SEM images show that the surface morphologies change throughout treatment time. The sample treated for 2 h shows flower-like microstructures with an average size of 100 μm, which are covered with spherical ZnO nanostructures with a size less than 50 nm. Measured surface roughness ranges from 5.800 μm to 6.560 μm. Layers thicknesses vary between 31 and 38 μm. Structural characterization by XRD demonstrates that the synthesized ZnO thin films were polycrystalline and have Wurtzite hexagonal structures, grown manly along the (101) plan. The estimated crystallite sizes are in the nanometric scale and reach their maximum value for the sample treated for 2 h. This annealing time corresponds to the low dislocation density (δ) and low lattice strain (ε), indicating fewer defects. The Raman analysis shows five normal vibrational modes, which correspond to the ZnO Wurtzite structure. It was possible to obtain both hydrophobic and hydrophilic surfaces; the shape and surface roughness of the as-prepared films had an impact on the results. The largest measured contact angle, of 97°, was obtained after annealing for 2 h at 500 °C.

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“…Moreover, it can also be applied in gas sensors, catalysts and solar cells due to its larger ration of length to diameter. It is noted that semiconductors such as ZnO, SnS 2 , TiO 2 could well be used in the field of photocatatalysis, and present an outstanding property [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic decomposition of rhodamine B by newly designed one-dimension ZnO using chemical method

Wang¹,

Hou²,

Lin³

et al. 2019

SN Appl. Sci.

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High quality and mono-dispersed ZnO nanowire and nanorod were firstly synthesized using co-precipitation method without using any organic solvents in the whole preparation process, which is consistent with the development of green chemistry and also can be used for large-scale production. The co-precipitation method is so popular with us that it is conducive to control and industrialize, which is also useful to save energy and protect our environment in part because we never utilize organic solvents and even ethanol in fabricating one-dimension (1D) ZnO. Although the focus here will be on the preparation of nanowired and nanoroded ZnO, we also explore the reaction mechanisms for semiconductor ZnO and commit to provide a prospective blueprint for how understanding growth mechanisms can be used to synthesize other one-dimensional metal oxide with environmental friendly method. As a semiconductor, it can be used in the field of the photocatalytic property, which was tested by the degradation of rhodamine B (RhB) solution. 1D ZnO nanowire products exhibit a high rate degradation of 10 mg L −1 RhB aqueous solution and achieve almost complete degradation of RhB from aqueous solution under light resource within 60 min.

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Influence of the Zn plasma kinetics on the structural and optical properties of ZnO thin films grown by PLD

Cited by 11 publications

References 39 publications

Properties of spray pyrolysis deposited Zr-doped ZnO thin films and their UV sensing properties

Properties of spray pyrolysis deposited Zr-doped ZnO thin films and their UV sensing properties

Electroplating of hydrophobic/hydrophilic ZnO nano-structural coatings on metallic substrates

Photocatalytic decomposition of rhodamine B by newly designed one-dimension ZnO using chemical method

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