Materials Literature
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Recent investigations disclose that semiconductor–ionic conductor materials (SIMs) as novel functional materials deliver superior ionic conductivity. However, SIMs are not utilized as electrolyte membranes in traditional fuel cells due to mixed ion–electron conduction. To address this issue, a Schottky fuel cell using…
Abstract The development of new optical materials and metamaterials has seen a natural progression toward both nanoscale geometries and dynamic performance. The development of these materials, such as optical metasurfaces which impart discrete, spatially dependent phase shifts on incident light, often benefits from th…
Optimum cooling of conventional thermoelectric (TE) devices is limited to about ⅙ Carnot efficiency for TE materials with figure of merit, ZT ≈ 1. This is ¼ to ½ the efficiency of typical two‐phase refrigeration systems and limits the use of TE materials to specialized applications where a combination of small size, s…
Zinc oxide nanoparticles (ZnO NPs) have a wide range of applications, but the number of reports on ZnO NP-associated toxicity has grown rapidly in recent years. However, studies that elucidate the underlying mechanisms for ZnO NP-induced toxicity are scanty. We determined the toxicity profiles of ZnO NPs using both in…
N‐doped Cu 4 O 3 thin films are deposited by radio frequency magnetron sputtering in an ambient of Ar, O 2 , and N 2 using a pure Cu target. The structural, electrical, and optical properties are investigated systematically with the variation of N 2 gas flow during deposition. Results reveal that N 2 flow rate has a s…
A viscous suspension of negatively buoyant particles released into a wide, open channel on an incline will stratify in the normal direction as it flows. We model the early dynamics of this stratification under the effects of sedimentation and shear-induced migration. Prior work focuses on the behaviour after equilibra…
Amidine inhibitors for brass in 1 M HNO3 were synthesized, and the electrochemical behaviours were investigated by different electrochemical techniques under flow conditions. This type of inhibitor can effectively overcome the fluid impact in flowing HNO3 solutions for at least 24 h. The amidine inhibitors caused main…
High Resolution Image Download MS PowerPoint Slide The present study elaborates the catalytic effect of rare-earth metal oxides (Sm 2 O 3 and La 2 O 3 ) over ceria as a support phase transfer catalyst. The synthesized catalysts have been subjected to different characterization techniques, such as field-emission scanni…
Here we demonstrate theoretical investigations of tunneling in ferroelectric tunnel junctions (FTJs) with a composite barrier. The results show that the SrRuO 3 /SrTiO 3 /BaTiO 3 /SrRuO 3 composite FTJ has a larger tunneling electroresistance (TER) effect than the SrRuO 3 /SrTiO 3 /BaTiO 3 /Pt composite FTJ. The TER i…
The experimental characterization of mechanical and thermal properties of treated and raw sugarcane bagasse fibre hasbeen studied. The bagasse fibres are treated with sodium chloride (NaCl) and sodium hydroxide (NaOH) solutions. TheNaOH treated fibres show better structural and thermal properties than other two types.…
We have investigated the correlation between structural and transport properties in sputtered β-FeSe films grown onto SrTiO3 (100). The growth parameters, such as substrate temperature and thickness, have been varied in order to explore different regimes. In the limit of textured thick films, we found promising featur…
The micro-structural properties of materials change due to irradiation. The defects formed during the displacement cascades caused by irradiation are the primary source of radiation damage The number of primary defects produced, defect cluster size distribution, and defect cluster structures after a collision cascade…
The reactivity and the reaction conditions of the ring-opening polymerization of ε-caprolactone (ε-CL) and L-lactide (LA) initiated by aluminum ketiminate complexes have been shown differently. Herein, we account for the observation by studying the mechanisms on the basis of density functional theory (DFT) calculation…
Abstract Recently, we reported the observation of superconductivity at ~0.5 K in a La2O2M4S6-type (M: metal) layered compound La2O2Bi3AgS6, which is a layered system related to the BiS2-based superconductor system but possesses a thicker Bi3AgS6-type conducting layer. In this study, we have developed the La2O2Bi3AgS6-…
We report the prediction of a two-dimensional (2D) allotrope common to group-IV and group-V elements and III-V compounds, which consist of two nonplanar atomic layers connected by vertical bonds and form deformed octagon, hexagon, and squares (dohs) with threefold and fourfold coordinated atoms. Specifically for silic…
We are concerned with controlling wave propagation in an elastic medium by engineering its dispersive properties. To this end, we discuss a flexible and systematic framework for designing the material composition of the unit cell of a periodic medium when given a target dispersion relation or, equivalently, a target g…
We report a unique phenomenon of physical adsorption of coumarin 6-β-cyclodextrin (C6-β-CD) inclusion nanostructures on graphene oxide (GO) nanosheets, thus inducing ground-state electron transfer from the C6-β-CD composite to GO. On excitation, the C6-β-CD composite initially transfers energy to the attached GO surfa…
ZnO, which has high electrochemical stability, wide band gap energy, large excitonic binding energy, intense near band excitonic emission and is non-toxic, have potential applications in all fields. This chapter reviews the structural, optical and electrical properties of undoped and doped ZnO thin films. The type of…
Abstract The thermal properties together with the identification of the emitted volatiles during heating of the starch-graft-poly(geranyl methacrylate) copolymers with the use of a TG/FTIR-coupled method and some of the physicochemical properties of the copolymers were determined. It was found that the use of the gera…
Nanomaterials had been used because of the properties they exert in such scale (<100 nm), and they have been used in a wide variety of products like paints, electronics, fabrics, and also personal care products. Recent manuscripts available in the literature demonstrate the potential benefits of nanotechnology with th…