Thin Films - Science topic

Herein, electrodeposition of Zn-Ni alloy thin films on CS substrates under various conditions, from sulfate baths containing Na3C6H5O7, C7H5NO3S, and 2-butyne-1,4diol, was studied. So as to have the best bath composition, a mixture design application was examined. The best obtained composition was: 0.3 M Na3C6H5O7-, 0.1 g/L C7H5NO3S and 0.1 g/L 2-b...

A thin layer of carbonate breccia, with limestone fragments in a red clay and calcite matrix, lies between Pliocene-Pleistocene basaltic lava and Danian limestones. Rare basaltic pieces suggest peperite formation due to lava interaction with wet breccia, with fluidal shapes from ductile deformation. This interaction varied with water saturation.

In this paper, we propose a tunable optical filter with a high Q factor based on photonic crystal technology, achieving a Q factor of 442.85 using thin film lithium niobate technology. By proportionally adjusting the dimensions of the unit structure, this filter enables coarse tuning across the 1520–1570 nm range (C band). Furthermore, by utilizing...

The computation of electric field in transcranial magnetic stimulation (TMS) is essentially a problem of gradient calculation for thin layers. This paper introduces a hybrid-order hybridizable discontinuous Galerkin finite element method (HDG-FEM) and systematically demonstrates its superiority in TMS computations. The discrete format of HDG-FEM em...

In this study, InGaSnO (IGTO)-based bilayer In2O3/IGTO and IGTO/In2O3 thin-film transistors (TFTs) were designed, and their carrier transport mechanisms and electrical performances were investigated. Herein, the ultrathin In2O3 layer provided a higher carrier concentration (Ne), thus accumulating free carriers and enhancing the carrier mobility. Th...

Quantum materials have been in the limelight for several years now. These materials exhibit intriguing quantum phenomena, which, when harnessed properly, promise extraordinary advancements across various scientific and technological domains. To fully exploit their potential, it is imperative to synthesize such quantum materials in thin film form so...

En este trabajo se describe de manera general las condiciones de uso de una máquina evaporadora de la marca Balzers, modelo BA510A y un cañón de electrones de la marca Island e-Beam, modelo HVCEB-8. Se explica el proceso para realizar depósitos de dióxido de silicio sobre sustrato de vidrio F2, utilizando una razón de depósito de 3.0 Å/s. Se presen...

In this paper, flexible highly sensitive piezoresistive pressure sensors for low compressive stress detection (9.8 Pa to 10.7 kPa) are proposed, by using Photo‐Sensitive Resin Plate (PSRP). The photolithography method is employed to create the micro‐dome structure pattern on PSRP. Finally, the active parts of the sensors are made by depositing a th...

Correction for ‘Enhanced desalination with polyamide thin-film membranes using ensemble ML chemometric methods and SHAP analysis’ by Jamilu Usman et al., RSC Adv., 2024, 14, 31259–31273, https://doi.org/10.1039/D4RA06078D.

Nonreciprocity of spin waves, which means the difference in amplitude depending on the direction of propagation, provides functionality to spin wave-based devices. One of the known origins of spin wave nonreciprocity is the asymmetry of the excitation efficiency due to the asymmetry of the out-of-plane microwave magnetic field generated by an anten...

Dip coating is a coating method by immersing the material in a solution for a certain time and then removing the material from the dipping place. Dip coating is an effective coating method that adds strength to each coated material and is accurate. Researchers have developed a microcontroller-based dip coater with an automatic calibration system th...

Instability-induced patterns with spatially varying dimensions and geometric shapes, or inhomogeneous instability patterns, are ubiquitous in biological structures and have attracted much interest in both fundamental research and engineering applications. However, it remains a challenge to create such patterns using materials with stiffnesses and s...

Sn thin films with ordered concave patterns were formed by the thermal deposition of Sn onto an anodic porous alumina template and peeling off the Sn thin film from the template. Ordered nanohole array structures with uniformly sized pores were obtained by anodizing the obtained Sn thin film. This is because each shallow concave formed on the Sn th...

Electrocorticography (ECoG) has garnered widespread attention due to its superior signal resolution compared to conventional electroencephalogram (EEG). While ECoG signal acquisition entails invasiveness, the invasive rigid electrode inevitably inflicts damage...

Spontaneous parametric down conversion (SPDC), especially in non-linear waveguides, serves as an important process to generate quantum states of light with desired properties. In this work, we report on a design of a strongly dispersive, singly poled thin film lithium niobate (TFLN) waveguide geometry which acts as a convertible source of photon pa...

While the accessible pores render an enormous variety of functionalities to the bulk of metal-organic frameworks (MOFs), the outer surfaces exposed by these crystalline materials also offer unique characteristics not...

Electro-optic modulators for next-generation optical interconnects require low loss-efficiency products, compact footprints, high modulation efficiency, broad bandwidths, and low losses. Here we propose and demonstrate a low-loss high-efficiency thin-film lithium-niobate Mach Zehnder modulator enabled by a novel ultralow-loss slow-light structure b...

In this work, the investigation of the surface strain‐induced electrical changes in two commonly employed solution‐processable organic semiconductors, i.e., 6,13‐bis(triisopropylsilylethynyl)pentacene (TIPS‐Pentacene) and N,N′‐bis‐(2‐ethylhexyl)−1,7‐dicyanoperylene‐3,4:9,10‐bis(dicarboximide) (N1400), is reported. A detailed electromechanical chara...

Twistronics has received much attention as a new method to manipulate the properties of 2D van der Waals structures by introducing moir\'e patterns through a relative rotation between two layers. Here we begin a theoretical exploration of twistronics beyond the realm of van der Waals materials by developing a first-principles description of the ele...

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The utilization of multiple dielectric materials is an effective way to improve the energy storage performance of dielectric thin films. However, the heterointerfaces are the underbelly of multilayer dielectric thin films, which often causes defect-induced breakdown. The adaptive anodizing method was proposed to optimize dielectric heterointerface....

The mechanical flexibility and conductivity of Al-doped ZnO thin films on flexible substrates are improved effectively via imbedding of silver nanowires (Ag NWs). The corresponding optical and electrical properties (before imbedding Ag NWs: 47.9 Ω/sq. at 85.1%, after imbedding Ag NWs: 14.7 Ω/sq. at 84.9%) indicate that the imbedding of Ag NW enable...

We investigate interface failure of model materials representing architected thin films in contact with heterogeneous substrates. We find that, while systems with statistically isotropic distributions of impurities derive their fracture strength from the ability to develop rough detachment fronts, materials with hierarchical microstructures confine...

Miniaturization is crucial to realize thermoelectric (TE) devices as an energy source for smart utilities. The present work reports the bulk-like ZT value realized in Cu2−xSe thin films in the mid-temperature range. The effect of varying the film thickness on the structural and TE properties were systematically studied, and the obtained results wer...

We have developed novel impedance standards based on thin-film surface mount device (SMD) resistors. Due to the small dimensions of such resistors, the frequency dependence is very small and can be calculated from quantities that can be either measured or numerically calculated. For nominal resistance values in the 10 kΩ range, as for our applicati...

The investigation on variation of the optical band energy gap Eg of a polymer doped with colored mineral salt has been receiving increasing attention. In recent study, Eg and other optical properties of poly vinyl alcohol PVA doped with cobalt chloride CoCl2 were studied in wavelength range of (400-900) nm. thin films (PVA-CoCl2) were prepared thro...

Continuous miniaturization of electronic components puts higher demands on the heat dissipation of the micro-systems, which requires environmental friendliness, good heat exchange capability, and high-performance micro-refrigeration materials. Here, we developed a Ni–Mn–Fe–In microwire fabricated by the Taylor–Ulitovsky method, showing ⟨001⟩A orien...

The relationship between the dynamics and structure of amorphous thin films and nanocomposites near their glass transition is an important problem in soft-matter physics.

This article continues the research initiated in (Jachalski et al. in SIAP 73(3):1183–1202, 2013). We derive explicit formulae for the leading order profiles of eleven types of stationary solutions to a one-dimensional two-layer thin-film liquid model considered with an intermolecular potential depending on both layer heights. The found solutions a...

Using the interface response theory formalism, we present a theoretical study on the effect of hydrostatic pressure and temperature on the behavior of localized electronic states and eigenstates of a new MQWs consisting of two semiconductors: \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{a...

In this study, the first noncontact and non‐destructive methodology is developed for monitoring and imaging the operation and performance of thin‐film field‐effect transistors (TFTs) using second‐harmonic generation (SHG) imaging. By analyzing the SHG signal intensity, which is directly related to the electric field at the interface between the sem...

Call For Chapters (Elsevier) Plasma Processing for Semiconductor Materials and Thin Film Devices We are calling for chapters for the book by Elsevier. Please see the attached file for details. If you are interested to contribute in any of the Chapters or to find out more information related to this Edited Book, please email to any of the Guest Edit...

In this study, a combinatorial and high-throughput approach was leveraged to investigate nanotwin behavior in the ternary CuNiAl alloy system. Combinatorial co-sputtering was used to synthesize 169 unique CuNiAl alloy compositions, which were characterized in both the as-sputtered and annealed conditions to elucidate relationships between compositi...

Spatially-varying alignment of liquid crystals is essential for research and applications. One widely used method is based on the photopatterning of thin layers of azo-dye molecules, such as Brilliant Yellow (BY), that serve as an aligning substrate for a liquid crystal. In this study, we examine how photopatterning conditions, such as BY layer thi...

The paper establishes the nonlinear (orbital) stability of static 180-degree Néel walls in ferromagnetic films under the reduced wave-type dynamics for the in-plane magnetization proposed by Capella et al. (Nonlinearity 20:2519–2537, 2007). The result follows from the spectral analysis of the linearized operator around the Néel wall’s phase, which...

Preparation of highly active core–shell/hybrid materials based on up-converting particles combined with semiconductors for photocatalytic application usually requires sophisticated and multi-step synthesis procedures. We propose a new design of a highly efficient NIR-driven photocatalytic system composed of spatially separated thin films of upconve...

Acoustic microfluidic is an important technology in particle manipulations in biomedical analyses and detections. However, the particle-movement manipulations achieved by the standing surface acoustic wave is suitable for particles in a thin layer of fluids, however it is difficult to manipulate particles in deeper solutions due to the energy loss...

Malaria is a contagious disease that infects many people each year. It is diagnosed in the laboratory using an expert and thorough examination of healthy and sick red blood cells (RBCs). This study refers to classifying the RBCs that are infected and non-infected with Malaria using a deep convolutional neural network (CNN). Also, it referred to eva...

We demonstrate telecommunication-wavelength Pockels electro-optic modulators in thin-film lithium tantalate (TFLT) with superior DC stability compared to equivalent thin-film lithium niobate (TFLN) modulators. Less than 1 dB output power fluctuation for quadrature-biased TFLT is measured compared to 5 dB with TFLN over 46 hours with 12.1 dBm input...

Following the recent observation of anomalous Hall effect in antiferromagnetic hexagonal MnTe thin films, related phenomena at finite frequencies have come into focus. Magnetic circular dichroism (MCD) is the key material property here. In the x-ray range, the XMCD has already been demonstrated and used to visualise domains via photoemission electr...

Nanotechnology has elucidated scientific phenomena of various materials at the nano-level. The next step in materials developments is to build up materials, especially condensed matter, based on such nanotechnology-based knowledge. Nanoarchitectonics can be regarded as a post-nanotechnology concept. In nanoarchitectonics, functional material system...

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Antiferroelectric (Pb0.87Sr0.05Ba0.05La0.02)(Zr0.52Sn0.40Ti0.08)O3 thin film capacitors were fabricated for dielectric energy storage. Thin films with excellent crystal quality (FWHM 0.021°) were prepared on (100) SrRuO3/SrTiO3 substrates by pulsed laser deposition. The out-of-plane lattice constant of the thin film was 4.110 ± 0.001 Å. An average...

The waterborne epoxy resin (WER) colored antiskid thin layer has been widely used in asphalt pavement to improve driving safety. The tectonic depth determines the antiskid performance of aparticle antiskid type thin layer. The spalling of aggregate from a thin layer may reduce the tectonic depth, thus damaging antiskid performance. The spreading pr...

In this work, the effect of laser irradiation on the optical properties of magnesium oxide thin films was investigated and evaluated. Thin films of magnesium oxide were prepared at a concentration of 0.2 M by depositing them on glass slides by drop casting method at temperature of 30-40 °C, then irradiating these films with a 5mW diode laser radiat...

In the realm of photoelectrocatalytic (PEC) water splitting, the BiVO4/WO3 photoanode exhibits high electron–hole pair separation and transport capacity, rendering it a promising avenue for development. However, the charge transport and reaction kinetics at the heterojunction interface are suboptimal. This study uses the hydrothermal–electrodeposit...

In this work, we rigorously establish the convergence analysis and error estimates of a four-stage, third-order implicit-explicit Runge-Kutta (IMEX RK (4,3)) scheme for the no-slope-selection (NSS) thin film growth model, which follows from detailed eigenvalue bound estimates for constructed operators and nonlinear analysis of the NSS equation. To...

Volatile organic compounds (VOCs) play a fundamental role in organismal interactions, facilitating intra- and interspecific communication. Accurate collection and analysis of VOCs are essential for understanding these interactions, but the choice of collection method and adsorbent material can introduce biases. This study investigates the variabili...

Amorphous TiO 2 has insufficient chemical stability that can be enhanced with annealing induced crystallization. However, the crystalline structure is already predetermined by the defect composition of the amorphous phase. In...

In the process of using thin-film thermocouples for contact measurement of the reaction temperature in proton exchange membrane fuel cells (PEMFC), the impact of thin-film thermocouple volume on the system’s reaction temperature field variation, reaction efficiency, and the lifespan of thermocouples under these conditions is not thoroughly studied....

We demonstrated a high-order mode modulator based on thin-film lithium niobate (TFLN). By introducing a mode converter and a polarization splitter-rotator (PSR), the modulator can achieve dual-mode modulation. Additionally, we designed a periodic capacitively loaded traveling-wave electrode on TFLN to enhance modulation efficiency and bandwidth. Th...

An infrared (IR) absorber is a crucial component for thermal detectors, requiring high absorptance over a broad wavelength range while maintaining low heat capacity for optimal performance. Most thermal detectors use a thin film IR absorber that is suspended in air, supported by a layer beneath it for mechanical stability. However, this support lay...