Materials Literature
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Permanent magnet (PM) machines are widely used in industrial processes due to their merits such as high power density and torque and low losses (high efficiency). These machines operate frequently under harsh conditions; therefore, they expose different types of faults. These faults can be diagnosed in initial stages…
Device applications of low-dimensional semiconductor nanostructures rely on the ability to rationally tune their electronic properties. However, the conventional doping method by introducing impurities into the nanostructures suffers from the low efficiency, poor reliability, and damage to the host lattices. Alternati…
Many theranostic nanomedicines (NMs) have been fabricated by packaging imaging and therapeutic moieties together. However, concerns about their potential architecture instability and pharmacokinetic complexity remain major obstacles to their clinical translation. Herein, we demonstrated the use of CuInS/ZnS quantum do…
A ternary-blend strategy is presented to surmount the shortcomings of both fullerene derivatives and nonfullerene small molecules as acceptors for the first time. The optimal ternary device shows a high power conversion efficiency (PCE) of 10.4%. Moreover, a significant enhancement in PCE (≈35%) relative to both of th…
High-quality hybrid halide perovskite nanocrystals are fabricated through a simple, versatile, and efficient two-step process involving a dry step followed by a ligand-assisted liquid-phase exfoliation step. The emission wavelength of the resulting nanocrystals can be tuned either through composition by varying the ha…
Power allocation is a major concern in hybrid energy storage system. This paper proposes an extended droop control (EDC) strategy to achieve dynamic current sharing autonomously during sudden load change and resource variations. The proposed method consists of a virtual resistance droop controller and a virtual capaci…
Mixed tin (Sn)-lead (Pb) perovskites with high Sn content exhibit low bandgaps suitable for fabricating the bottom cell of perovskite-based tandem solar cells. In this work, we report on the fabrication of efficient mixed Sn-Pb perovskite solar cells using precursors combining formamidinium tin iodide (FASnI3) and met…
We predict the existence and dynamical stability of heptagraphene, a new graphitic structure formed of rings of 10 carbon atoms bridged by carbene groups yielding seven-membered rings. Despite the rectangular unit cell, the band structure is topologically equivalent to that of strongly distorted graphene. Density-func…
5-(4′-isopropylbenzylidene)-2,4-dioxotetrahydro-1,3-thiazole, ( IPBDT ) was tested as a potential copper corrosion inhibitor in 0.1 mol dm –3 Na 2 SO 4 solution at pH=3. Using dc polarization measurements and electrochemical impedance spectroscopy ( EIS ) the influence of the inhibitor concentration and temperature on…
Strongly correlated electronic systems such as Transition Metal Oxides often possess various mid-gap states originating from intrinsic defects in these materials. In this paper, we investigate an extremely sharp Photoluminescence (PL) transition originating from such defect states in two widely used perovskites, LaAlO…
Electrochemical impedance spectroscopy (EIS) measurements are performed on a Ti-6Al-4V alloy with and without welding. EIS measurements are always performed simultaneously on two identical specimens: one stressed with a slow strain rate tensile test or a constant load test and one free of stress test. A similar electr…
A permeation probe is a useful device for detecting the atomic hydrogen flux to plasma-facing walls. Recently, we developed a new type of probe using 60Pd-40Cu alloy (PdCu) as the permeation material. The deuterium behaviors in PdCu samples were investigated using nuclear reaction analysis (NRA) and permeation observa…
Different methods of silane coating deposition on the surface of 304 stainless steel were studied. Deposition was performed in different solutions with a variety of pH values. Three types of solutions were prepared i.e. neutral, containing only methanol with triethoxyoctylsilane and two acidic consisting of methanol,…
A palm-oil modified hydroxyethyl imidazoline has been used as corrosion inhibitor for Cu in 3.5 % NaCl solution by using potectiodynamic polarization curves, linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS) measurements. Results showed that modified imidazoline acts as good inhibit…
The behavior of the dislocation loop of a self-interstitial atom (SIA) near an edge dislocation and its conservative climb process were modeled in body-centered cubic Fe by incorporating loop rotation. The stable position of the loop and its rotational angle due to the interaction with an edge dislocation were evaluat…
A well-designed, efficient, one-step assembly strategy is implemented in this work by constructing a confined nanospace to manufacture an approximately 120 nm thick inorganic upconversion (UC) nanofilm with highly (101) oriented and morphology-controllable crystal grains, as well as transparent and robust characterist…
The surface treatment of ultralow-κ dielectric layers by exposure to atomic oxygen is presented as a potential mechanism to modify the chemical composition of the dielectric surface to facilitate copper diffusion barrier layer formation. High carbon content, low-κ dielectric films of varying porosity were exposed to a…
In this paper, we study the oxygen and hydroxyl adsorption on both pristine and S deficient MS2 (M = Mo, W, Hf) monolayers, using first‐principles molecular dynamics calculations. Our simulations reveal that single‐layer HfS2 suffers severely from oxidation, which results in the formation of strong Hf–O bonds, likely…
Skin scarring is a highly prevalent and inevitable outcome of adult mammalian wound healing. Scar tissue is both pathologically and aesthetically inferior to the normal skin owing to elevated concentration of highly orientated collagen I architecture in the innate repaired tissue. With highly invasive surgery being th…
Bismuth telluride (Bi 2 Te 3 ) is a well-known thermoelectric material with potential applications in several different emerging technologies. The bulk structure is composed of stacks of quintuple sheets (with weak interactions between neighboring sheets), and the performance of the material can be significantly enhan…