Texture Coefficient Research Articles

Quasiepitaxial Aluminum Film Nanostructure Optimization for Superconducting Quantum Electronic Devices

In this paper, we develop fabrication technology and study aluminum films intended for superconducting quantum nanoelectronics using AFM, SEM, XRD, HRXRR. Two-temperature-step quasiepitaxial growth of Al on (111) Si substrate provides a preferentially (111)-oriented Al polycrystalline film and reduces outgrowth bumps, peak-to-peak roughness from 70 to 10 nm, and texture coefficient from 3.5 to 1.7, while increasing hardness from 5.4 to 16 GPa. Future progress in superconducting current density, stray capacitance, relaxation time, and noise requires a reduction in structural defect density and surface imperfections, which can be achieved by improving film quality using such quasiepitaxial growth techniques.

Effects of bias voltage on the microstructure and properties of AlCrN/AlTiN nanoscale multilayer coatings

Bias voltage has great influence on the microstructure and properties of multilayer coatings, but it is endowed less attentions compared with modulation periods. In this work, effects of bias voltage ranging from −120 V to −210 V on the microstructure and properties of the AlCrN/AlTiN multilayer coatings are investigated. Results show that the multilayer coatings possess fcc-(Al,Cr,Ti)N singular phase, and grow preferentially along the (111) plane, but the texture coefficient of the (111) plane drops greatly at −210 V. Surface roughness decreases firstly and then increases with the bias voltage. Conversely, the hardness increases gradually to the maximum value 33.0 GPa at −180 V, and then decreases to 26.4 GPa at −210 V caused by the texture variation and coarse structure. The adhesion strength decreases gradually with the bias voltage due to augmented residual stress. The friction coefficient and wear rate drop firstly and then increase at −210 V. Abrasion, oxidation and adhesion wear are primarily responsible for the failure of the coatings at mediate bias voltage, while spallation accelerates the failure of the coatings at −120 V and −210 V caused by their poor microstructure and mechanical property.

Covariance Matrix Estimation of Texture Correlated Compound-Gaussian Vectors for Adaptive Radar Detection

Covariance matrix estimation of compound-Gaussian vectors with texture-correlation (spatial correlation for the adaptive radar detectors) is examined. The texture parameters are treated as hidden random parameters whose statistical description is given by a Markov chain. States of the chain represent the value of texture coefficient and the transition probabilities establish the correlation in the texture sequence. An Expectation-Maximization (EM) method based covariance matrix estimation solution is given for both noiseless and noisy snapshots. An extension to the practically important case of persymmetric covariance matrices is developed and possible extensions to other structured covariance matrices are described. The numerical results indicate that the benefit of utilizing spatial correlation in the covariance matrix estimation can be significant especially when the total number of snapshots in the secondary data is small. From applications viewpoint, the suggested model is well suited for the adaptive target detection in sea-clutter where some spatial correlation between range cells has been experimentally observed. The performance improvements of the suggested approach for small number of snapshots can be particularly important in this application area.

Synthesis, characterization, and gas sensing application of crumpled CdO sheets prepared in alkaline media

CdO crumpled sheets have been synthesized by microwave-assisted irradiation in alkaline solutions of NH4OH and NaOH, respectively, and in presence of a surfactant. The morphology of CdO samples have been investigated using Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). X-ray diffraction analysis (XRD) has been used to determine the cadmium oxy/hydroxide crystalline phases of CdO formed during synthesis and successive annealing at 300 °C. Crystallite sizes of CdO nanostructures obtained from NH4OH and NaOH reagent-assisted synthesis are 44 nm and 57 nm, respectively. The specific surface area (SSA), lattice parameter, X-ray density, dislocation density, macrostrain, and texture coefficient (TC), have also been determined. The optical characteristics of CdO samples were investigated using UV reflectance (DRS) and K-M plot. NO2 gas detecting capabilities of CdO nanostructures have been investigated at low working temperature of 150 °C. When compared to its NaOH counterpart, the CdO sample prepared by NH4OH reagent-assisted synthesis demonstrated a superior sensitivity to NO2, being demonstrated even at the low concentration of 0.14 ppm, with excellent selectivity.

Optogeometric and waveguiding properties of multimode ZnO planar waveguide sprayed thin films

ZnO thin films with different thicknesses (T1=230.0, T2=450.0, T3=634.0, T4=926.9 and T5=1153.4nm) were deposited by spray pyrolysis on ordinary glass. All of the films had wurtzite crystal structure. The texture coefficient of the (002) plan decreased from 2.74 to 1.64 while that of the (103) increased from 0.65 to 1.23 over the thickness. Flaky shaped grains were observed in the SEM images with a tendency to get larger and hexagonal in shape. The surface evolution was verified by AFM microscopy. The ordinary and extraordinary refractive indices increased with thickness from 1.9344 and 1.9365 to 1.9768 and 1.9830 respectively. The mode order had a significant impact on the confinement of the electric field in the TE mode, therefore the power confinement factor increased by 16.58% with respect to thickness, reaching over 99% whilst it was reduced by 16.39% when the mode order increased from 0 to 4 in T5.

Experimental study on the sandstone abrasiveness via mineral composition and microstructure analysis

Rock abrasiveness is an important factor affecting the tool's lifetime and efficiency in breaking a rock. Characterizing rock abrasiveness helps in the design, optimization, and mean-life prediction of tools. X-ray diffraction, cast thin section analysis, and CERCHAR abrasiveness tests were performed on 18 different sandstones to characterize rock abrasiveness and explore new methods for characterization. The relationship between the mineral composition and microstructure of sandstone and abrasiveness was investigated. The results show that different structural maturities have varying effects on abrasiveness. In addition, the higher the structural maturity, the more the abrasiveness. Furthermore, in sandstones of the same structural maturity, the abrasiveness increases with equivalent quartz content (EQC). The texture coefficient (TC) and CERCHAR abrasiveness index (CAI) of sandstones with the same structural maturity showed a good linear relationship. Moreover, the correlation coefficients considering the combined parameters are above 0.85. Therefore, obtaining the microstructure and mineral composition of sandstone can effectively characterize rock abrasiveness. It also provides a new method for predicting the abrasiveness of the rock in the well.

Bismuth sulfide nanorods by thermal decomposition of a complex: Effect of reaction temperature on microstructural and optical properties

Bismuth sulfide nanorods have been prepared by thermolysis of a bismuth dithiocarbamate complex, as a single-source precursor, in a mixture of solvents (oleylamine, 1-dodecanethiol, and 1-octadecene) at various temperatures. Bismuth sulfide nanorods denoted as BS(120), BS(150), BS(180), BS(200), and BS(220) have been obtained at the specified temperatures (°C). They have been characterized by X-ray diffraction analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV/Vis spectrophotometry, and photoluminescence (PL) spectroscopy. The effect of temperature on the microstructural and optical properties of the obtained Bi2S3 has been studied. The results show that interactions of the N–H group of oleylamine and the S–H group of dodecanethiol with the nanoparticles are temperature-dependent. The crystallite sizes of the nanoparticles were calculated using the Scherrer equation, Williamson–Hall (W–H) analysis, and Rietveld analysis, which yielded values in the ranges 20.1–45.9, 20.9–26.6, and 23.0–29.6 nm, respectively. Analysis of the microstrain in crystals of the nanoparticles showed that while the strain therein was due to contraction of the nanoparticles obtained at 180 °C, the strains at other temperatures were due to expansion, thereby confirming the effect of temperature on the nature of the defects in Bi2S3 crystals. The lattice strains were estimated by the W–H and Rietveld analyses to be in the ranges 3.19 × 10−5–1.04 × 10−4 and 0.008–0.067, respectively. The crystallite sizes and lattice strains estimated by both W–H and Rietveld analyses were mutually consistent, showing similar trends. SEM and TEM analyses showed that the nanorods were aggregated into longer rods at 120 and 150 °C, whereas shorter rods were obtained at 180 and 220 °C, suggesting a change in preferential growth direction. The widths and lengths of the nanorods were estimated as 20.97–41.25 nm and 79.4–111.0 nm, respectively, giving aspect ratios in the range 1.92–5.52. The band-gap energies of the nanorods varied in the range 1.08–0.78 eV, which can be related to differences in tail state width as observed in the absorption spectra. Calculation of texture coefficients showed preferential growth in the (111), (020), and (321) directions.

Electrochemical behavior and electro-crystallization mechanism of Cu-Ni/Nano-Al2O3 coating with a deposition current density dependence

In this work, preparation of Cu-Ni/Nano-Al2O3 composite coating with (111)-preferred orientation on the surface of the H64 brass via electrodeposition technique. Variation of the deposition current density was found to play a key role in the control of the microstructure and strongly influence the corrosion resistance of the composite coating. Electrochemical impedance spectroscopy results indicated that the increase of nano-alumina content in composite coating is caused by the change of polarization mode. Under different current densities, the Ni (111) plane is only preferred orientation and the relative texture coefficient reaches the highest value of 54.36% at 5 A•dm−2. The crystallite size of these coatings is about 10–55 nm dependent on current density, and high current density could refine the size. The microstructure of the coating changed from cauliflower to spherical with increasing deposition current density. Moreover, the Cu-Ni/Nano-Al2O3 composite coating obtained at 5 A•dm−2 increased the polarization resistance and coating resistance of the H64 brass by about 50% and 83%, respectively. The corrosion potential (Ecorr) of Cu-Ni/Nano-Al2O3 composite coating is shifted towards the nobler direction from − 1.191 V to − 0.063 V(Ag/AgCl) with the current density increases. The corrosion mechanism of Cu-Ni/Nano-Al2O3 composite coating has gone through two stages corresponding to two-time and three-time constant of EEC models, respectively. The Cu-Ni/Nano-Al2O3 has large potential merits in field of corrosion.

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

Due to its excellent physical and chemical properties, transition metal-doped zinc oxide has potential applications in different fields. In this research paper, 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. The X-ray diffraction analysis shows a wurtzite structure with preferential orientation for all films, where the high texture coefficient values (above 3) corresponded to the (002) plane. Fe doping reduced the crystallite size from 12.3 to 8.7 nm and lattice constants c and a values from 5.19 to 5.155 Å and from 3.236 to 3.203 Å respectively. 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 from 248 to 54 nm and the Root–Mean–Square roughness of films from 5.27 to 4.22 nm. 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, and the absorption in the ultraviolet region were increased. The gap energy of ZnO strongly increased from 3.26 to 3.51 eV with doping. 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. In this report, Fe-doped ZnO films exhibited remarkable properties. Therefore such films can be usefully used in different device applications.

Calcination-dependent microstructural and optical characteristics of eco-friendly synthesized ZnO nanoparticles and their implementation in analog memristor application

Using Camellia Sinensis leaf aqueous extract as a friendly reducing, capping, and stabilizing agent, ZnO nanoparticles (NPs) are synthesized via the green process. The plausible mechanism for the ZnO NPs formation is proposed as the chelation of Zn, or metal complexation, under the thermally assisted energy from the annealing process. An inclusive study on the effect of the annealing process on the ZnO NPs is conducted from room temperature to 850 °C. The structural, morphological, thermal, and optical characteristics and their intercorrelation with annealing temperature are thoroughly studied. In particular, the change of crystalline texture coefficient contributed to the systematic perspective of the shape changes of the ZnO NPs. The (002)-oriented growth becomes preferred at 400–700 °C, corresponding to the increase of conical-shaped NPs from 150 to 250 nm in average size. With further temperature, the preferred growth transfers from (002) to (100) orientations, and polygonal spherical-shaped NPs can be obtained. Photoluminescence spectra reveal that singly and doubly ionized oxygen vacancies are the most dominant in the NPs. With the optimized green materials, implementing an eco-friendly memristor based on ZnO NPs found promising for electronic devices.

Impact of annealing on structural and optical properties of ZnO thin films

This paper analyzes the effect of annealing on morphological, structural and optical properties of Zinc Oxide (ZnO) thin films and their applications in optical sensing. ZnO thin films were deposited using radio frequency (RF) sputtering technique followed by annealing in presence of nitrogen environment at 100 °C, 200 °C and 300 °C. The effect of the annealing on surface and structural properties were studied through SEM, AFM, XRD, Raman and PL. Increment of the annealing temperature improves the texture coefficient of the film in (101) plane. Further optical sensing was performed on annealed ZnO thin films at room temperature. The results confirm that the annealing temperature of the thin films is related to crystalline structure and showed the highest optical response. The optimized annealed sample offers photo to dark current ratio (PDCR) in the order of 2.8 × 104. The annealed devices at 200 °C and 300 °C showed 102 times improved PDCR compared to devices annealed at 100 °C. This optimized sample showed improved results for UV range optical applications.

Photocatalytic waste-to-renewable energy nexus using solar light induced quantum dots

Modern green transition obligations support a circular economy to maximize the use of existing resources, where climate-neutral net-zero energy goals argue for a hydrogen economy to minimize the energy dependence on fossil fuels. In this study, the surface functionalized cadmium sulfide nanoparticles were used as a photocatalyst to efficiently demineralize the methylene violet (MV) and rhodamine B (RhB) for hydrogen evolution. The influence of sulfur vacancy on photocatalytic hydrogen production was systematically investigated. The sulfur vacancy in CdS quantum dots (QDs) surface demonstrated a viable strategy for improving charge separation and photocatalytic performance. The impact of vacancy formation on the QDs properties, including the band gap, crystallite size, average strain, photoluminescence, dislocation density, electrostatic repulsion, and texture coefficient were thoroughly examined. The growth kinetics of CdS in the presence of different capping agents was analyzed using UV–Vis, Fourier transform infrared, and photoluminescence spectra. The results of experiments and theoretical calculations were used to examine the interactions of the CdS-ligand and its structural and optoelectronic properties. The thioglycolic acid functionalization effectively passivates surfaces, which gives desirable optical and textural properties and potential circular applications. Optimized nanocluster geometry, stability, and band gap were examined by implementing density functional theory and time-dependent density functional theory. The solar light-driven mineralization of MV and RhB was done, further, the treated water was used for the generation of hydrogen making circular use of CdS quantum dots for a net-zero energy approach.

Microstructure, tensile properties and rollability of V-5(Al-5Ti-1B) alloys for hydrogen separation

Microstructure, tensile properties and rollability of V-5(Al-5Ti-1B) alloys (V-5ATB) for hydrogen separation have been investigated in this work. The long needle like TiB phases precipitated in V-5ATB alloys are beneficial to grain refinement. The fracture mode of the two as-cast alloys at room temperature is brittle fracture. The tensile strength of V-5ATB alloys is higher than that of V-5Al alloys, but the elongation is lower. The ultimate reduction rate of the first pass rolling (rup) of V-5ATB alloys at room temperature is higher than that of V-5Al alloys, indicating that the compression deformability of V-5ATB alloys exceeds its the tensile deformability. With increasing rolled reduction rate, the TiB phases in V-5ATB alloys were fragmented from long needle into short rods or dots and the gaps were filled leaving no noticeable voids by V-based solid solution (Vss) plastic flow, and texture coefficient (TC) value in the (2 0 0)V plane of V-5ATB alloys continuous increases.

Experimental investigation on rock microfabrical effects on dynamic hardness behaviour

Rocks' physicomechanical properties are influenced by their textural qualities. Rock mass stability is largely governed by these variables. Many geoengineering facilities depend on the capability to assess both short and long-term rock behaviors based on the interaction between different textural characteristics and physicomechanical properties. Rock hardness is frequently used in excavation engineering and is measured by several methods with different mechanisms. The Leeb dynamic hardness method has been recently applied in rock engineering applications as a new, inexpensive, non-destructive, and portable technique. This paper aims to show the interaction between the quantitative microfabrical features and the Leeb hardness of the rocks. For this purpose, 33 various rock types were chosen by considering their physicomechanical properties and microfabrical characteristics. Thin sections were prepared and their microphotographs were analyzed by ImageJ software. Four basic characteristics, including grain perimeter and area and length of minor and major axes, were measured. Then, seven textural quantities, including equivalent diameter (Dequi), shape factor (SF), aspect ratio (AR), grain compactness (C), texture coefficient (TC), interlocking index (g), and grain size homogeneity (t), were calculated based on those basic parameters and statistically analyzed. The findings indicate that the Leeb hardness increases with increasing the grain area and perimeter, equivalent diameter, grain compactness, homogeneity of grain size, grain interlocking, and TC. In contrast, Leeb's hardness decreases with increasing the AR and SF. The texture coefficient reveals the most meaningful relationship (R2 > 0.8) with the Leeb dynamic hardness test among the studied microfabrical characteristics in sedimentary and igneous rock samples.

Structure and Optical Properties of Transparent Cobalt-Doped ZnO Thin Layers

Transparent thin layers of cobalt-doped ZnO were produced with the pulsed laser deposition method. The cobalt content of the original solid solution was 20% at. The crystallographic structure was examined by X-ray diffraction, which showed that the fabricated layers crystallized in the wurtzite phase and had a dominant orientation along the a-axis. The texture coefficient (increasing from F = 0.08 for the non-annealed layer to F = 0.94 for the annealed layer at 400 °C) and grain size (D = 110 ÷ 140 nm) were calculated. Optical constants, such as the refractive index n (1.62) and the extinction coefficient k (0.1 ÷ 0.4), were determined from the ultraviolet–visible–near-infrared transmission spectrum using the envelope method. The value of the optical band gap was determined, which is lower than for pure ZnO. Increasing the annealing temperature of the ZnO:Co layer increases the Urbach energy from 0.20 to 0.25 eV, which shows the difference in the type of growth defects in the ZnO matrix.

Influence of Y<sup>3+</sup> Doping on Dielectric and Optical Properties of Ce<sub>2</sub>S<sub>3</sub> Spherical Shaped Nanostructures Synthesized by Chemical Precipitation Method

In the present investigation, Y3+ doped (5 wt. %, 10 wt. %, and 12 wt. %) cerium sesquisulfides (Ce2S3) nanoparticles (NPS) were synthesized by a simple chemical precipitation method. Thin films of Y3+:Ce2S3 NPs achieved on ITO (indium tin oxide) substrate. XRD (X-ray diffraction) patterns were used to estimate the size of the NPS, morphology index, texture coefficient, and lattice constants. The crystallite size was found to be in the range of 18-34 nm. UV-visible spectral studies were carried out in order to understand optical absorptivity, and optical band (Eg) of the as-synthesized nanostructures (NS). It has been observed that the red shift in the optical absorptivity and Eg value varies between 3.45 eV to 2.59 eV. Morphology and the presence of Y+3 were investigated by scanning electron microscope (SEM) and energy dispersive X-ray studies (EDX). However, agglomerated spherical-shaped NPs and homogeneous dispersion of Y3+ were observed in EDX analysis. Chemical constituents and nature of the doped NS were examined by X-ray photoelectron spectroscopy (XPS), and binding energies matched with Y 3d3/2, Y 3d5/2, Ce 3d3/2, Ce 3d5/2, O1s, C1s peaks. Y3+: Ce2S3 (12 wt. %) NS subjected for dielectric property studies in the frequency range of 10 Hz-10 MHz at room temperature (RT). High dielectric permittivity (Ɛ), and very low dielectric loss (tan δ) were observed at low frequency for 12 wt. % Y3+:Ce2S3 NS as compared with other doped NS. The as-synthesized NS can be used for high dielectric permittivity, low dielectric loss, and capacitor-related applications.

Secondary recrystallization of Goss texture in one-stage cold rolled Fe–Ga thin sheets via a large rolling reduction

Preparing Fe–Ga sheets with excellent magnetostrictive coefficients by rolling and annealing methods can greatly promote the development of high-efficiency magnetostrictive devices. 0.3 mm thick Fe–Ga thin sheet was produced by the one-stage large-reduction cold rolling method without intermediate annealing. Trace V and Nb elements addition improves the rolling formability of the Fe–Ga sheet by precipitating a large number of (Nb,V)C particles. The evolution of precipitation, microstructure, texture, and magnetostrictive coefficients in the Fe–Ga sheet was investigated. The microstructure of primary recrystallization is composed of homogenous distribution of fine grains with an average grain size of about 22 μm. The composite inhibitors composed of MnS and (Nb,V)C precipitates with a particle size of 40∼80 nm suppress the matrix grains effectively. The primary recrystallization texture consists of a strong γ texture with a peak at {111}<112> and a relatively strong {114}<481> texture. The secondary recrystallization of Goss grain occurs at the annealing temperature of 900 °C and is completed at 1100 °C by the combined effects of the existing inhibitor and texture. The Fe–Ga thin sheets composed of several millimeter-sized grains of Goss texture accompanied by small grains oriented by {114}<481> were obtained after annealing at 1100 °C, and its measured magnetostriction value is about 238 ppm. The present work proposes a promising routine to produce high-performance Fe–Ga thin sheets.

Study the structural and Optical properties of ZnO thin film

This research included preparation of ZnO thin films from Zinc acetate solution (Zn(CH3COO)22H2O). on glass substrate with dimension (2.5cmx2.5cmx0.1cm) using chemical spray pyrolysis method composed with (0.2M). The structural properties were characterized by X-Ray diffraction (XRD), Atomic force microscope (AFM), Scanning electron microscope (SEM) and Energy dispersive of X-Ray (EDX). The film grown have a polycrystalline wurtizte structure it can be seen that the highest texture coefficient was in (002) plane. So (AFM) measurement show that the roughness average (1.51nm), root mean square (RMS = 1.75nm) and dimeter average (108.96nm). The optical properties were characterized by (UV- Visible) and showed that higher transmittance about (97%) and optical Energy gab (Eg=3.28 eV).

Comparative Characterization of the TiN and TiAlN Coatings Deposited on a New WC-Co Tool Using a CAE-PVD Technique

The main objective of this work was to assess and compare the structure and mechanical properties of the TiN and TiAlN coatings deposited on a new WC-Co tool using the cathodic arc evaporation vacuum deposition (CAE-PVD) technique. The cutting tool was sintered at high temperature and high pressure using a powder tungsten carbide matrix ligated with cobalt (WC-Co). Powdered grain growth inhibitors (TiC, TaC, and NbC) were admixed into the matrix to enhance its strength and to facilitate the adhesion of the Ti base coatings. Detailed scanning electron microscopy with energy-dispersive spectrometry (SEM-EDS) and X-ray diffraction (XRD) analyses were performed, aiming to substantiate the effectiveness of the inhibitor additions. XRD data were thoroughly exploited to estimate the phase contents, average crystallite sizes (D), coating thicknesses (t), texture coefficients (Thkl), and residual stress levels (σ). Atomic force microscopy (AFM) was used to calculate the average roughness (Ra) and the root mean square (Rq). The microhardness (µHV) was measured using the Vickers method. The TiAlN characteristics (D = 55 nm, t = 3.6 μm, T200 = 1.55, µHV = 3187; σ = −2.8 GPa, Ra = 209 nm, Rq = 268 nm) compared to TiN ones (D = 66 nm, t = 4.3 μm, T111 = 1.52, µHV = 2174; σ = +2.2 GPa, Ra = 246 nm, Rq = 309 nm) substantiate the better adequacy of the TiAlN coating for the WC-Co substrate. The structural features and data on the TiN and TiAlN coatings, the tool type, the different stress kinds exerted into these coatings, and the way of discrimination of the coating adequacy are the novelties addressed in the paper.

Visible light activated SnO2:Dy thin films for the photocatalytic degradation of methylene blue.

This paper explores the impact of dysprosium (Dy) doping on structural, optical, and photocatalytic properties of tin oxide (SnO2) thin films fabricated via spray pyrolysis. Dysprosium doping levels ranged from 0 to 7 at%, and films were grown on glass substrates at 350 °C. X-ray diffraction (XRD) analysis revealed an increase in crystallite size with Dy doping, signifying improved crystalline quality. Simultaneously, dislocation density and strain decreased, indicating enhanced film quality. Texture coefficient (Tchkl) results showed a predominant crystal orientation along the (110) plane due to Dy doping. Optical band gap energy (Eg) decreased with Dy doping up to 5%. Urbach energy increased with Dy doping, suggesting atomic structural flaws and defects. Scanning electron microscopy (SEM) analysis revealed the presence of numerous micro-aggregates on the film's surface. Notably, the density of these micro-aggregates increased proportionally with higher Dy doping levels, particularly emphasizing the pronounced effect observed in SnO2:Dy 5% thin films. These findings underscore the potential of Dy-doped SnO2 thin films for advanced photocatalytic applications, with SnO2:Dy 5% exhibiting favorable properties and demonstrating a 90.99% degradation efficiency in three hours under solar irradiation.