Thickness effect on the properties of Mn-doped ZnO thin films synthesis by sol-gel and comparison to first-principles calculations

Boukhari, Ammar; Deghfel, B.; Mahroug, Abdelhafid; Amari, Rabie; Selmi, N.; Kheawhom, Soorathep; Mohamad, Ahmad Azmin

doi:10.1016/j.ceramint.2021.03.039

Cited by 35 publications

(14 citation statements)

References 54 publications

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“…Similar result was reported for Mn-doped ZnO. 26 However, Alnehia et al 13 reported that Fe doping leads to decrease in the refractive index. As shown in Fig.…”

Section: Resultssupporting

confidence: 82%

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Optical, Photocurrent, Electrical, Structural, and Morphological Properties of Magnetron Sputtered Pure and Iron-Doped Zinc Oxide Thin Films

Mahroug

Berra

et al. 2023

ECS J. Solid State Sci. Technol.

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Pure and iron-doped ZnO films were deposited by thermal oxidation of sputtered metallic zinc and iron. The effect of iron (Fe) doping on the optical, morphology, structural, electrical, and photocurrent properties of zinc oxide films was examined. X-ray diffraction analysis shows a wurtzite structure with preferential orientation for all films. Fe doping reduced the crystallite size. The different calculated structure parameters confirm the incorporation of Fe (Fe3+) in the ZnO lattice. The surface morphology of thin films measured using atomic force microscopy revealed that the Fe doping could markedly decrease the grains size and the root mean square roughness of films. For all films, the transmittance analysis shows a transmittance above 90% in the visible region and with an increase in the Fe concentration, the transmittance, the absorption in the UV region, and the gap of ZnO were increased. The effect of Fe doping on different optical parameters was discussed in detail. The photoluminescence analysis of pure and doped ZnO exhibits one ultraviolet emission (384 nm) and green emission. Compared to pure ZnO, the ultraviolet peak intensity decreased as Fe content increased. The electrical resistivity was decreased and the photocurrent properties of ZnO were enhanced by Fe doping.

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“…Similar result was reported for Mn-doped ZnO. 26 However, Alnehia et al 13 reported that Fe doping leads to decrease in the refractive index. As shown in Fig.…”

Section: Resultssupporting

confidence: 82%

“…This behavior of the refractive index matches with the literature. 25,26 We notice that the refractive index increases with Fe doping in the absorption region, this may be related to the change in grain size and surface morphology of films by doping. Similar result was reported for Mn-doped ZnO.…”

Section: Resultsmentioning

confidence: 91%

Optical, Photocurrent, Electrical, Structural, and Morphological Properties of Magnetron Sputtered Pure and Iron-Doped Zinc Oxide Thin Films

Mahroug

Berra

et al. 2023

ECS J. Solid State Sci. Technol.

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“…Table 2 summarizes the theoretical-study-only ALD articles found in the Web of Science and covered in this review. It is worth mentioning that this review mostly focuses on the theoretical-study-only ALD articles and does not cover the combined experimental and theoretical ones, which are cited here [ 75 , 76 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 , 140 , 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 , 153 , 154 , 155 , 156 ]. Figure 5 displays the publications, summarized in Table 2 , that are covered in this study.…”

Section: Theoretical Studies On Aldmentioning

confidence: 99%

Recent Advances in Theoretical Development of Thermal Atomic Layer Deposition: A Review

et al. 2022

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Atomic layer deposition (ALD) is a vapor-phase deposition technique that has attracted increasing attention from both experimentalists and theoreticians in the last few decades. ALD is well-known to produce conformal, uniform, and pinhole-free thin films across the surface of substrates. Due to these advantages, ALD has found many engineering and biomedical applications. However, drawbacks of ALD should be considered. For example, the reaction mechanisms cannot be thoroughly understood through experiments. Moreover, ALD conditions such as materials, pulse and purge durations, and temperature should be optimized for every experiment. It is practically impossible to perform many experiments to find materials and deposition conditions that achieve a thin film with desired applications. Additionally, only existing materials can be tested experimentally, which are often expensive and hazardous, and their use should be minimized. To overcome ALD limitations, theoretical methods are beneficial and essential complements to experimental data. Recently, theoretical approaches have been reported to model, predict, and optimize different ALD aspects, such as materials, mechanisms, and deposition characteristics. Those methods can be validated using a different theoretical approach or a few knowledge-based experiments. This review focuses on recent computational advances in thermal ALD and discusses how theoretical methods can make experiments more efficient.

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“…In all wet coating processes, including dip coating, one needs to control the final thickness of the coating layer after its solidification [ 7 , 8 , 21 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. In many cases, the coating liquid is made of rheologically complex fluids [ 8 , 29 , 31 , 32 , 33 , 34 ], which are difficult to handle and evenly deposit on substrates.…”

Section: Introductionmentioning

confidence: 99%

The Thickness and Structure of Dip-Coated Polymer Films in the Liquid and Solid States

2022

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Films formed by dip coating brass wires with dilute and semi-dilute solutions of polyvinyl butyral in benzyl alcohol were studied in their liquid and solid states. While dilute and semi-dilute solutions behaved as Maxwell viscoelastic fluids, the thickness of the liquid films followed the Landau-Levich-Derjaguin prediction for Newtonian fluids. At a very slow rate of coating, the film thickness was difficult to evaluate. Therefore, the dynamic contact angle was studied in detail. We discovered that polymer additives preserve the advancing contact angle at its static value while the receding contact angle follows the Cox–Voinov theory. In contrast, the thickness of solid films does not correlate with the Landau-Levich-Derjaguin predictions. Only solutions of high-molecular-weight polymers form smooth solid films. Solutions of low-molecular-weight polymers may form either solid films with an inhomogeneous roughness or solid polymer domains separated by the dry substrate. In technological applications, very dilute polymer solutions of high-molecular-weight polymers can be used to avoid inhomogeneities in solid films. These solutions form smooth solid films, and the film thickness can be controlled by the experimental coating conditions.

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Thickness effect on the properties of Mn-doped ZnO thin films synthesis by sol-gel and comparison to first-principles calculations

Cited by 35 publications

References 54 publications

Optical, Photocurrent, Electrical, Structural, and Morphological Properties of Magnetron Sputtered Pure and Iron-Doped Zinc Oxide Thin Films

Optical, Photocurrent, Electrical, Structural, and Morphological Properties of Magnetron Sputtered Pure and Iron-Doped Zinc Oxide Thin Films

Recent Advances in Theoretical Development of Thermal Atomic Layer Deposition: A Review

The Thickness and Structure of Dip-Coated Polymer Films in the Liquid and Solid States

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