Materials Literature
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The principle of operation of a device for measuring magnetic losses during rotation magnetization reversal of ferromagnetic specimens is described. The designed device is characterized by sufficiently high sensitivity and allows one to reliably determine magnetic losses for small Fe–3% Si single-crystal specimens whe…
We report much improved color gamut liquid crystal displays (LCDs) with specially engineered low-reabsorption, narrow emission spectrum and high quantum yield colloidal quantum-dot light converting device (QLCD) and its applications to TV displays. By theoretical and experimental optimizations, color gamut as wide as…
Based on semiclassical Boltzamnn transport theory in random phase approximation, we develop a theoretical model to investigate low-temperature carrier transport properties in relatively high doped bilayer graphene. In the presence of both electron–hole puddles and band gap induced by charged impurities, we calculate l…
We report on an extensive research result about the relationship between the growth parameters of growth temperature, working gas ratio, and Low-temperature (LT) ZnO buffer and the physical properties of surface properties, structural properties, and optical properties in the ZnO films grown on (001) Si substrates by…
The unique bonding between Cu and Cu will be reported. The material was prepared by filling metal Cu into isolated nano-holes of anodized aluminum oxide (AAO). Nano-Cu filaments were exposed from AAO surface. The electric conductivity appears only in the vertical direction along filled metal, and insulation property a…
A study of the absorption spectrum of thin KPb2Cl5 films, in the spectral range of 2–6 eV, within the temperature interval 90–520 K. It is found that low-frequency exciton states are localized in the sublattice of the compound containing the Pb2+ ions, and that they are excitons of intermediate coupling having a two-d…
This work proposes an interdigitated microelectrode biosensor (IMB), which includes hydrogenated amorphous silicon carbide (a-SiC:H) as surface to be functionalized. Accordingly, two a-SiC:H films are included, one on top of SiO2, and another on top of microelectrodes. The design along with the medium were simulated o…
Contribution Of Soil and Soil Fractions' (Clay and Silt) Exchangeable and Nonexchangeable Potassium to Available Potassium for Corn Plant in Loess-Like and Loess-Derived Soils of Golestan Province
Adsorption of proteins on metal oxides is important in many fields of life. We carried out studies on deposition (adsorption) of proteins (bovine serum albumin, BSA) on oxides at different pH values (2.5, 4.8 and 7). The oxide samples were of the SiO 2 /BSA, ST20(SiO 2 /TiO 2 )/BSA and SA1(SiO 2 /Al 2 O 3 )/BSA types.…
We investigated the electrocaloric (EC) effects in epitaxial Ba 0.8 Sr 0.2 TiO 3 (BSTO) thin films grown on LaAlO 3 and MgO substrates and in BSTO sol-gel thin films grown on Si substrates. We compared the EC effects in two forms of BSTO to confirm whether the giant EC effect recently observed in the polycrystalline t…
J. Chen, M. Xue, and colleagues report 3D interdigital electrodes based on reduced graphene oxide for stretchable all-solid-state supercapacitors with adjustable volumetric capacitance, which are accomplished via pressure spray printing and machine coating. The supercapacitor presented on page 4601 can remain high spe…
Abstract : This report was written by the author under the Engineer Scientist Exchange Program activity in the US Army Research Laboratory from April 2013 to September 2014. To clarify the accuracy of finite element (FE) material models for butyl rubber, the component-level loading test was conducted on drop testers i…
The short-circuit damage of a power transformer is the serious main equipment accident in power grid. Thus to reduce transformer short-circuit accident by detecting transformer winding deformation is extremely important. This paper proposes a methodology to interpret low-voltage impedance measurements of a deformed or…
In bulk samples of p-Cd1 − x Mn x GeP2, p-Cd1 − x Mn x GeAs2, and p-Zn1 − x Mn x GeAs2 at high hydrostatic pressures (P ≤ 9 GPa), the pressure dependences of the electrical resistivity and the volume change were studied. In all the studied samples, there were phase transitions accompanied by a volume jump. This sugges…
We fabricated a 0.17-μm gate-length AlGaN/GaN high electron mobility transistor (HEMT) on SiC recessed by using ICP gate etching with a gas mixture of BCl3/Cl2. The ICP gate recess process exhibited an etch rate of 20 nm/min for the AlGaN layer and the clean surface characteristics at the etched AlGaN/gate metal inter…
The microstructure, texture evolution and thermal properties of the as-cast and as-extruded Mg92Zn4Y4and Mg92Zn4Y3Gd1alloys with long period stacking ordered (LPSO) structure phases have been investigated in details. The results show that the microstructures of the as-cast and as-extruded alloys mainly consist of α-Mg…
Abstract In this study, a nanocomposite of 3, 4, 9, 10‐perylenetetracarboxylic acid and L‐cysteine (PTCA‐Cys) with satisfactory water‐solubility and film‐forming ability was prepared and worked as substrate for modifying the glassy carbon electrode. Then, gold nanoparticles (AuNPs) were immobilized to achieve a PTCA‐C…
In order to improve the salt spray corrosion resistance of the aerospace electronic products with the power MOSFET, meet the high reliability requirements, improve the packaging process of power MOSFET. This paper starts from the mechanism of packaging materials'salt spray corrosion, through the packaging materials se…
The advanced IC packaging technologies such as 3D-TSV, 2.5D interposer, PoP and Flip-Chip wafer micro-bumping are being implemented for consumer electronic products like as mobile phones, tablets, and so on. The form factor of consumer product trends toward small and thin which driving IC packaging toward smaller, thi…
We performed MD simulations of nanoindentation on a single layer graphene nanoribbon in order to obtain the tip-position-dependent mechanical properties of the graphene nanoribbon. A correlation between the load and the indentation depth was constructed. Also, the bending rigidity, the Young’s modulus and the strength…