Materials Literature
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We investigate nano-sized double layer anti-reflection coatings (ARCs) using a TiO2 and SiO2 sol-gel solution process for mono-crystalline silicon solar cells. The process can be easily adapted for spraying sol-gel coatings to reduce manufacturing cost. The spray-coated SiO2/TiO2 nano-sized double layer ARCs were depo…
Graphenes have been considered suitable candidate materials for electrodes of energy storage devices such as lithium-ion batteries (LIBs) because of their outstanding mechanical, thermal and electrical properties. However, there are problems when using these carbon materials for electrodes because of their low electro…
We fabricated InSnZnO (ITZO) thin-film transistors (TFTs) with a high-permittivity (K) ZrO2 gate insulator using a solution process and explored the microstructure and electrical properties. ZrO2 and ITZO (In:Sn:Zn = 2:1:1) precursor solutions were deposited using consecutive spin-coating and drying steps on highly do…
A heavy hydrocarbon mixture represented by C 17 –C 31 carbon groups was investigated to determine extraction recoveries by supercritical carbon dioxide in the ranges of 12–65 MPa for pressure and 50–90 °C for temperature. The purpose of the study was to obtain a three-dimensional scheme of the SC–CO 2 /heavy hydrocarb…
The scaling behavior of nano-aluminum nitride added polycrystalline MgB2 superconductor is discussed. A series of polycrystalline MgB2 samples with different amounts of nanosized AlN addition are synthesized by solid reaction. All the synthesized pellets are subjected to x-ray diffraction, field emission gun scanning…
This paper investigates the effect of slot-pole combination on harmonic loss such as iron loss and eddy-current loss in wind generators with high-temperature superconductor field winding. In order to study the effect of stator configuration, three wind generators having the same rotor structure but different stators w…
Electrospun polycaprolactone and poly(lacto-co-glycolide) membranes were loaded with biphasic calcium phosphate powder to facilitate osteoconductivity. Different concentrations of biphasic calcium phosphate powder were added to the polymer solution, and successful loading was confirmed by X-ray diffraction analysis, t…
We show that an interlayer exciton condensate doped into a strongly correlated Mott insulator exhibits a remarkable enhancement of the bandwidth of the magnetic excitations (triplons). This triplon is visible in the dynamical magnetic susceptibility and can be measured using resonant inelastic x-ray scattering. The ba…
The multi-crystalline Si used to fabricate solar cells contains nitrogen, with a concentration typically in the mid-1015 cm−3 range that was introduced by the Si3N4 liner of the crucible used for ingot growth. Low temperature infrared spectroscopy has been used to identify and determine the concentrations of the nitro…
Abstract BACKGROUND Biochemical oxidation reactions require oxygen to be supplied by dispersed bubbles. Drawbacks of the gas–liquid system are enzyme denaturation and low oxygen utilization efficiency. Therefore, oxygen production through the decomposition of H2O2 is useful for controlled oxygen transfer in bioreactor…
The new uranyl sulfide anion [(UO2)S4](6-) has been synthesized and characterized as a cation-stabilized anion in the compound Na2Ba2(UO2)S4. This compound was synthesized at 873 K from the solid-state reaction of uranium, Na2O2, BaS, and sulfur. The coordination about the U(6+) center in [(UO2)S4](6-) is square bipyr…
Here we demonstrate the effects of tip loading force on the contact quality and local current-voltage character between conductive AFM tips and individual noble metal nanoparticle-strontium titanate (NP-STO) interfaces. These results show that though contact quality may improve with increased loading force, nanopartic…
Electromagnetic forming (EMF) is a promising metal-forming process for complex geometrical shape and light-weight construction. Ring expansion is one of the basic EMFs wherein the workpiece is under nearly uniform tensile stress. The final strains of the rings at different discharge voltages are measured. It is found…
This work demonstrates the possibility of rearranging nanoporous cavity structures in crystalline syndiotactic polystyrene (s-PS) by applying external stresses. A molecular dynamics (MD) simulation was performed for the s-PS crystal with increasing or decreasing of each stress tensor component, starting from the nanop…
Bidirectional two-colored mechanoluminescent light emission has been demonstrated by unifying two polydimethylsiloxane elastomer layers functionalized with zinc sulfide doped with Cu (ZnS:Cu) or Cu and Mn (ZnS:Cu,Mn). The bilayered composite films are simply fabricated by dispensing uncured ZnS:Cu,Mn + PDMS onto previ…
For stretchable electronics to achieve broad industrial application, they must be reliable to manufacture and must perform robustly while undergoing large deformations. We present a new strategy for creating planar stretchable electronics and demonstrate one such device, a stretchable microelectrode array based on fle…
Gold nanoparticles were green-synthesized using a glycosaminoglycan, chondroitin sulfate, as the reducing agent by mixing Au3+ and chondroitin sulfate under heating. Chondroitin sulfate-reduced gold nanoparticles were characterized by UV-Vis spectrophotometry, high resolution transmission electron microscopy and atomi…
Polymer matrix nano-sized oxide composites were fabricated by using a modified injection molding in which nano-sized silicon oxide and nano-sized magnesium oxide were contained. Thermal decomposition and evaporation of organic resin depended on the composition of the composites. Nano-sized oxides were uniformly distri…
Die Analyse von Ladungsverschiebungen in Gold-Ethin-Komplexen zeigt die Existenz quantitativer Zusammenhänge zwischen messbaren Eigenschaften und den Bestandteilen chemischer Bindungen im Dewar-Chatt-Duncanson-Modell. Durch passende Experimente können diese Bestandteile voneinander separiert und somit entscheidende Er…
Owing to the superparamagnetic iron oxide nanoparticles’ wide applications, a new approach in the synthesis of mainly superparamagnetic iron oxide nanoparticles is reported. The Fe 3 O 4 nanoparticles (∼500 nm) were synthesised through the carbon reduction method, which is a brand new method. The best parameters of sy…