We studied a Surface-enhanced Raman scattering (SERs) film by self-assembled deposition of Ag nanoparticles on the surface of PPy@PEDOT:PSS films to detect melamine molecules. The PPy@PEDOT:PSS film was prepared using an electrochemical polymerization method in a mixture solution of PPy and PEDOT:PSS. Then, Ag nanoparticles were directly deposited on the surface of PPy@PEDOT:PSS films by a chemical

ZnO/carbon-TiO2 core-sheath nanofibrous film was fabricated by a combination of electrospinning, tetrabutyl titanate (TBT) treatment and heated treatment. The results of field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction revealed that the wurtzite ZnO nanoparticles were successfully incorporated in carbon nanofibers (NFs) matrix without aggregation. And

A series of (Cu0.5Tl0.5)Ba2Ca2Cu3O10-δ superconducting samples impregnated with different percentage additions of potassium salt {CoSiW11}x nanoparticles (x = 0.00, 0.01, 0.02, 0.04, 0.06, 0.08 and 0.12 wt.%) were prepared using a single-step solid-state reaction technique at ambient pressure. These samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and

In this work, the La-doped TiO2 (La–TiO2) nanoparticles with different La content were successfully synthesized by hydrothermal method aiming at enhancing the visible-light photocatalytic performance. The as-prepared photocatalysts were characterized by XRD, BET, TEM, XPS, FT-IR, photocatalytic performance and photo-electrochemical analysis. The experimental results indicate that La doping could suppress

In the present work, we report the deposition of vanadium pentoxide (V2O5) thin film on the quartz crystal microbalance (QCM) using vacuum thermal evaporation method followed by rapid thermal annealing (RTA) in oxygen atmosphere (O2),for gas sensing application. The structure, morphology and surface wettability of the obtained thin film were characterized by X-ray diffraction (XRD), scanning electron

Titanium oxide (TiO2) codoped with Ni-Ga and Ni-Zn nanoparticles were synthesized by the thermal co-precipitation method. The energy-dispersive x‐ray fluorescence, X‐Ray Diffraction, UV–visible absorption spectroscopy, and magnetization methods were performed to study the elemental content, crystalline structure, optical and magnetic properties, respectively. The roadmap of the present work is to explore

Double compression method is an effective method to determine static recrystallization volume fraction of materials because there is a marked difference in flow stress between two passes, which is caused by static recrystallization. And now offset method that is based on some specific flow stress is widely used. However, this method is not suitable to determine static recrystallization volume fraction

The adsorption of H2 molecules on Li, Na and K-decorated MXenes (Ti2C) has been investigated with first-principles calculations. A detailed examination of the adsorption mechanism of the Li, Na and K-decorated systems was presented by charge population analysis, electron density and partial density of states calculations. The results show that Li-decorated Ti2C system was found suitable for hydrogen

This work presents a highly sensitive silver (Ag) based Surface Plasmon Resonance (SPR) sensor with graphene-coated over Silicon nitride (Si3N4) for sensing of Deoxyribonucleic acid (DNA) hybridization. The design consists of five layers namely Ag, Si3N4, graphene, and sensing medium along with BK7 glass prism that couple light at the metal–dielectric interface. The performance of the present structure

In view of the rough and sunken bottom of blind hole during the laser processing on carbon fiber-reinforced plastics (CFRP), a processing experiment with different hatch distance is conducted by picosecond laser, and the numerical simulation is carried out by COMSOL. The effects of scanning path distribution of hatch distance with equal and variable hatch distance in the processing depth, heat-affected

A novel β– Ti-xNb-3.5Sn alloys (x = 33, 36, and 39 wt. % Nb) were made using mechanical alloying of elemental powders by cold isostatic pressing. These powders were blended and then milled at different times using a planetary ball mill. The milled powders were compacted and then consolidated at different temperatures. The produced alloys were characterized as a biomedical material; using a scanning

CoFe2O4 nanoparticles were prepared by the co-precipitation method, the structural properties were performed using X-Ray Diffraction (DRX) in the goal to prove the success of Cobalt ferrite formation and determine crystal parameters. The size and morphological study were building using Scanning Electron Microscopy (SEM). The magnetic properties were carried using MPMS SQUID device. The CoFe2O4 nanoparticles

In the present work, we report the ferromagnetic (Fe, Ni) co-doped Zn1-x-yNiyFexO (y = 0.01 and x = 0.01, 0.03, 0.05) thin films fabricated through the RF magnetron sputtering on Silicon (400) substrate. Structural studies of prepared thin films through X-ray Diffraction (XRD) reveal the formation of a single-phased hexagonal structure of films. Atomic Force Microscopy (AFM) confirms the decrease in

In this paper, we report a junctionless FinFET-based capacitor less dynamic memory by using three-dimensional technology computer-aided design simulations. To realize the 1T-DRAM, the proposed device has been designed as a structure in which a poly-si layer is deposited on the fins of a typical junctionless FinFET. Poly-si has one or more grain boundaries (GB). A GB contains multiple traps, and these

In this research paper, our central focus is upon investigating structural and electrical properties of polycrystalline Ba0.9Ag0.1TiO3 powder which was fabricated through standard solid-state reaction technique. X-ray diffraction analysis at room temperature confirmed that the component crystallizes in both tetragonal and orthorhombic structures. The electrical response was explored by complex impedance

In the present manuscript, an effort has been made to develop the curcumin ZnO nanocomposites(CZNCs) for their self-cleaning applications. Presence of ZnO and Ag/ZnO nanoparticles in curcumin matrix get confirmed by X-ray diffraction (XRD) and fourier transform infrared spectrometer (FTIR) techniques. Optimum transparency with tuned refractive index has achieved in Ag/ZnO-curcumin nanocomposite as

The impact of atmospheric adsorbates on the spectral response and response speed of p-type graphene/n-type Silicon (p-Gr/n-Si) based Schottky barrier photodetectors are investigated. Wavelength resolved photocurrent and transient photocurrent spectroscopy measurements conducted under high-vacuum conditions revealed that the atmospheric adsorbates such as O2 and H2O stuck on graphene electrode lead

The material response of Borofloat, BK7, and B270 glass targets to 34 fs pulses of 800 nm central wavelength is analyzed in the 1–30 J/cm2 fluence domain. The contours of the craters change with the fluence very much the same for all three glasses up to approximately 20 J/cm2, above which the Borofloat and BK7 continue behaving similarly, while bump formation sets on for the B270 glass. Analyzing the

The present study aims to investigate the effect of (PVP: Sn-TeO2) interfacial layer on the electrical parameters of the Al/p-Si diode. For this aim, (Sn-TeO2) nanostructures were developed by the ultrasound-assisted method, and both their electrical and optical characteristics were investigated by XRD, SEM, EDS, and UV–Vis methods. The bandgap of Sn-TeO2 was found as 4.65 eV from the (αhυ)2 vs (hυ)

Herein, we report negative anomalous electrical tunability of the nanocomposite chitosan and graphene oxide (CS–GO) films based upon the dependence of dielectric constant and resistivity on DC bias. The origin of such anomalous tunability can be traceable to the reversible transformation of GO to reduced graphene oxide. In this transformation, H+ ions are released from water or GO side groups and those

Cr3+ ion-doped Ni–Ba–Co ferrite with the chemical formula Ni0.2Ba0.1Co0.7Fe2-xCrxO4 was prepared by the sol–gel route. The X-ray diffraction analysis confirmed spinel-phase structure of the prepared Cr3+ ion-doped Ni–Ba–Co ferrite. By Scherrer’s formula, the average crystallite size was calculated. Meanwhile, from Fourier transform infrared spectroscopy, the absorption peaks around 590 cm− 1 were found;

Neodymium oxide nanocrystals are synthesized by an inverse microemulsion method. XRD, XPS and HRTEM are used to characterize the properties of the neodymium oxide nanocrystals. Results show that the prepared neodymium oxide particles have obvious "column” structure with a column width of 400 ~ 600 nm and a length of 1 ~ 4 µm and have nanocrystalline structure with a high crystallinity. Neodymium-doped

The effect of oxygen vacancy (VO) defect regeneration in ZnO nanorods on their photocatalytic properties has been investigated. The ZnO nanorods with different VO defect concentrations were realized by the annealing in the different atmospheres of vacuum, oxygen, air and Ar. And the VO defect concentrations in the annealed ZnO nanorods follow an order of Cvacuum > CAr > Cair > Coxygen. By the photocatalytic

Gamma-ray/neutron shielding capacity and mechanical properties of erbium-doped potassium manganese borate glasses with the chemical form of (1 − x)MnO–29K2O–70B2O3–xEr2O3: x = 0–1 mol% coded as E0–E5 via bond compression model, XCOM software, and PHITS simulations have been investigated. The bulk modulus (KB.C) values increased from 90.19 for E0 glass sample with free Er2O3 to 101.24 GPa for E5 glass

In this work, the thermodynamic properties of TMAl (TM = Ni, Fe, Ti) compounds were studied at a temperature of 0–1000 K and a pressure of 0–40 GPa through first principles based on density functional theory. The thermal expansion coefficient α and Debye temperature (θD) is sensitive to temperature and pressure. The single crystal elastic constants and polycrystalline elastic properties were calculated

Based on the van der Waals (vdW) interaction potential and the bending rigidity of graphene, the self-scrolling mechanical behaviors of monolayer graphene flake induced by carbon nanotube (CNT)/black phosphorus nanotube (BPNT) are studied, and the analytical expressions of critical radius of CNT/BPNT are derived when the graphene flakes spontaneously scroll round them. The factors affecting the critical

Photon and neutron shielding factors and elastic moduli of phosphate glass doped with Tm3+ ions (abbreviated as PPKANT glasses) have been analyzed. MCNP-5 simulation code, and Phy-X/PSD software have been utilized to estimate the gamma rays and neutron shielding capacity. Furthermore, Makishima and Mackenzie’s theory has been performed to calculate elastic moduli. Young’s modulus, bulk modulus, and

Magnetic, magnetocaloric, and magnetoresistance properties of polycrystalline Tb2Ni0.94Si3.2 alloy have been investigated. Magnetic susceptibilities (AC and DC), remanent magnetization and the heat capacity studies of Tb2Ni0.94Si3.2 provide evidence for the spin glass behavior below the temperature, Tf = 5.2 K. At the Néel temperature, TN = 12.7 K, Tb2Ni0.94Si3.2 alloy orders antiferromagnetically

The actual ferroelectric polarization can be misjudged due to the existence of the leakage current. How to distinguish the impact of each part is of great significance to evaluate the actual domain switching polarization and liner polarization. The current (I)–electric field (E) curves are suggested to distinguish the electric displacement contribution of electric conductivity D1, dielectric displacement

In this article, the capping action of Sodium carboxymethyl cellulose (NaCMC) on ZnS nanoparticles synthesized by microwave-assisted method is reported. The X-ray diffraction and electron diffraction studies corroborated nanocrystalline nature of cubic ZnS. Discontinuous cluster growth of particles was implied by optical absorption studies. This was reflected in transmission electron microscope images

The enhancement of hole injection layers is strongly important issue for obtaining high-efficient and low-driving-voltage Organic Light-Emitting Devices (OLEDs). In this paper, we presented a comprehensive electroluminescence (EL) study of phosphazene-based ionic liquids (PzILs) used as a hole transport layer in solution-processed OLEDs. Charge transfer properties of PzILs were investigated by doping

Chiral liquid crystalline (LC) compositions with the selective reflection band (SRB) in a visible spectral range are suggested and studied as elements of LC-nose. This allows for optical detection of several volatile organic compounds (VOCs): SRB shifts and color of the sample changes under the action of VOCs. Ethanol, toluene, pyridine and acetic acid were detected by means of colorimetric and spectroscopic

In this research, the mechanical behavior of aluminum nanofoam was studied by the method of molecular dynamics simulation. The effective parameters in mechanical properties such as porosity, pore size, temperature, and strain-rate were investigated. The results showed that Young’s modulus, yield strength, and ultimate tensile strength were increased by decreasing the porosity and pore size. To accurately

The environmental influence (with alkaline and acid components) on the luminescence character of SnO2 nanoparticles’ ensembles in a porous silicate glass matrix was studied. The established changes in the luminescence are associated with the interaction nature of alkaline or acid ions with nanoparticles in the pores of silicate glass. A sharp drop in the radiation intensity is due to the formation

Memory devices that are capable of logic functions have shown great potential in constructing non-von Neumann parallel computing architecture. Here, we proposed a universal nonvolatile logic device, utilizing the amorphous–crystalline phase transition behavior and phase change control of ferromagnetism property of Mn-doped GeTe phase change magnetic material (PCMM). The materials implication (IMP)

In the present study, a procedure of the inserting of SnO2:CuO nanoparticles with different CuO nanoparticles contents within a macroporous silicon layer (macroPSi) gas sensor was prepared and successfully investigated. The macroPSi was effectively fabricated by laser assisted etching process, and CuO nanoparticles loaded with SnO2 with a high value of surface area were successfully synthesized by

The goal of this study was to acquire mechanical properties of a dual-phase grade advanced high strength steel (AHSS) by means of different microindentation loading conditions. Conventional, cyclic, and multi-step indentations were performed on DP 800 sample; and Young’s modulus, hardness values were obtained by the depth-sensing indentation technique. Effects of different load levels (50–300 mN) and

In this article, a comparative study is performed to explore the formation mechanism of laser-induced periodic surface structures (LIPSS) using femtosecond laser on silicon carbide (SiC). The optical properties of SiC transformed to a metal-like state when the excited carrier density exceeds 2e22 cm−3 under laser irradiation and significantly altered the laser energy deposition. The laser-induced carrier

This paper offers the study of the noise performance of four devices namely junctionless dual-gate FET (JL-DGFET), junctionless nanowire FET (JL-NWFET), charge-plasma based dopingless dual-gate FET (DL-DGFET) and dopingless nanowire FET (DL-NWFET). This work examines the maximum Noise-Figure (NFmax.), Auto-correlation factor (< V1·V1* >)/(< V2·V2* >), cross-correlation factor (< V1·V2* >), and output

The present manuscript investigated the effect of thermal annealing at 150 °C (below Tg) and 250 °C (above Tg) on the nonlinear as well as linear optical parameters and structural changes of the thermally evaporated As35Se65 thin films. The structural investigation was done by X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, whereas the surface morphology was studied by field

SiC coating was prepared on the graphite substrate and the effects of substrate morphology on the thermal radiation properties of SiC coating were investigated. As the surface roughness of the graphite substrate decreasing from 2.95 to 0.68 μm, the total emissivity of SiC coating increased 28.33% at 1000 °C and 36.21% at 1600 °C, respectively. At the same time, the spectral emissivity of SiC coating

The electronic structures, magnetic properties and mechanical stability of three configurations of a promising half-metallic quaternary Heusler compound CoMnVTe were systematically and comprehensively studied by the first-principle calculations. The results show that type-I and type-II configurations present half-metallic behavior with 100% spin polarization. Especially the type-I configuration has

Perovskite LaCoO3 nanopowders were synthesized via solution auto-combustion chemical route, using lanthanum and cobalt nitrates as oxidants and citric acid as fuel. Qualitative and Quantitative phase analysis performed by Rietveld refinements indicated the presence of pure single LaCoO3 phase. From fit parameters, goodness of fit “S” parameter (close to 1) and the difference between the experimental

Sm3+-doped LnNbO4 (Ln=La, Y) phosphors were obtained by high-temperature solid-state reaction. The crystal structure of LnNbO4:Sm3+ (Ln=La, Y) was characterized by X-ray diffraction. Luminescent properties of those phosphors were investigated by diffuse reflection spectra, excitation spectra, as well as emission spectra. The emission spectra of those phosphors consisted of several orangish-red emission

The impact of source doping gradient (SDG) in terms of lateral straggle (σ) on the performance of germanium epitaxial layer double-gate tunnel field effect transistor (ETL-DGTFET) was demonstrated by a simulation study. The non-zero tilt angle used in the ion implantation during the device fabrication process extends the implanted dopant atoms to the channel region from the source and drain which affects

Transparent conducting aluminum-doped ZnO thin films have been prepared by nebulizer spray pyrolysis technique for different doping concentrations on glass substrates. X-ray diffraction patterns reveal that all the films are polycrystalline of hexagonal structure with c–axis orientations. Atomic force microscopy (AFM) images noticed that the films have a uniform surface morphology consist spike shaped

In this paper, by the means of molecular dynamics simulations, the mechanical properties of defective hybrid C3N-BC3 in both armchair and zigzag arrangements have been studied. For the purpose of using this hybrid in nanotransistors and nonodiodes due to its special electrical properties, the mechanical properties of this nanosheet have been studied under various conditions. First, the failure stress

Graphene nanosheets have been prepared from fine graphite powders by a novel electrochemical exfoliation method using non-volatile sulfate salts. This new method utilizes a stainless steel wire cage and platinum wire electrodes to exfoliate pre-pelleted graphite powders into graphene sheets. Synthesized graphene samples have been characterized by Field Emission Scanning Electron Microscopy (FE-SEM)

In this study, barium hexaferrite film with different Ba:Fe molar ratios (1:2, 1:4, 1:6, 1:8, 1:10 and 1:12) has been synthesized by a sol–gel method and annealed at a temperature of 800 °C in the air. The structural, morphological and magnetic properties of the films have been analyzed by an X-ray diffractometer, a field emission scanning electron microscope and a vibrating sample magnetometer, respectively

The electrochemical response of laser powder bed additively manufactured Ti6Al4V is often considered at room-temperature conditions; however, structural Ti6Al4V components in a warm marine environment tend to respond differently. In light of this, the present work investigates the electrochemical response of the Ti6Al4V fabricated using laser powder bed fusion, in aqueous NaCl solution at varying temperatures

The structure stabilities and the mono-vacancy properties of the body-centered cubic transition metals were studied by the molecular static or molecular dynamic method on the basis of the improved ones of the modified analytic embedded atom method potentials. First, the molecular static method was applied to calculate the cohesive energies for the several possible structures under the assumption of

Tin sulfide SnS, SnS2 thin films have been fabricated and investigated for solar cell application as prospective inexpensive and environmentally safe material. Today, SnSx-based single bandgap and tandem solar cell designs demonstrate promising results as environment-friendly and cheap alternative to common Si, CdTe, CIGS cells. To enhance further the solar spectrum utilization, the graded bandgap

Mn0.6Fe2.4O4 was synthesized by the co-precipitation method. A simple method was developed for preparing Mn0.6Fe2.4O4@SiO2 nanocomposite via few steps. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) images, BET surface area measurements were used to characterize the physical structures of the investigated samples. The crystallite size of the nanocomposite is greater than

A hypereutectic alloy is a metallic alloy which has a composition beyond the eutectic point. As the temperature of a non-eutectic composition is lowered, the liquid mixture will precipitate one component of the mixture before the other. In the present paper, Ni–Si hypereutectic composites at the different solidification rates were prepared by a modified Bridgman directional solidification technique

Microstructure, dielectric, and electrical properties of CaCu3−xGexTi4O12 ceramics with x = 0–0.10 prepared by a conventional solid-state reaction method are investigated. Single-phase of CaCu3Ti4O12 was detected in all sintered ceramics. The substitution of Ge4+ into Cu2+ sites results in the grain size of CaCu3−xGexTi4O12 ceramics to decrease, compared to CaCu3Ti4O12 ceramic. Unusually, although

The novel V2O5/ZnO nanocomposite, an antibacterial material, was synthesized through a simple, low-cost, and energy-saving approach. The eggshell membrane was used for the first time as a bio-template, reducing and stabilizing agent during this synthesis. Ammonium metavanadate and zinc nitrate hexahydrate (1:1) were the metal precursors. The synthesis involved soaking of an eggshell membrane with the

A comparative study on the effect of additives (\(\text {Bi}_{2}\text {O}_{3}\) and \(\text {ZrO}_{2}\)) and sintering temperature on structural, morphological and magnetic properties of M-type barium hexaferrite has been investigated. Oxalate precursor method was used to synthesize \(\text {BaFe}_{12}\text {O}_{19}\) in the present investigation. Additives \(\text {Bi}_{2}\text {O}_{3}\) and \(\text

A modern progress in fluid dynamics has been emphasizes on nanofluids which maintain remarkable thermal conductivity properties and intensify the transport of heat in fluids. Here, the present-day endeavor progresses a Maxwell nanofluid towards stretched cylinder heated convectively. The addition properties, i.e., MHD, stagnation point, thermal radiation, heat sink/source and chemical reactions are