Materials Literature
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Normally-off GaN-on-Si heterojunction field-effect transistors (HFETs) have been developed with up to 650 V blocking capability, fast switching, and low conduction losses in commercial devices. The natively depletion-mode device can be modified to be normally-off using a variety of techniques. For a power electronics…
Many technologies require oxides with high electronic conductivity or mobility (e.g., transparent conducting oxides, oxide photovoltaics, or photocatalysis). Using high-throughput ab initio computing, we screen more than 4000 binary and ternary oxides to identify the compounds with the lowest electron effective mass.…
Nitro aromatics are the principal components of explosives used in acts of terrorism and within improvised explosive devices, among others. Although high sensitivity towards nitro aromatic explosives has been demonstrated, selective detection and discrimination are critical for practical applications. Fluorescence que…
Here, a novel and facile method is reported for manufacturing a new stretchable conductive material that integrates a hybrid three dimensional (3D) carbon nanotube (CNT)/reduced graphene oxide (rGO) network with a porous poly(dimethylsiloxane) (p‐PDMS) elastomer (pPCG). This reciprocal architecture not only alleviates…
The interaction between carbon nanotubes (CNTs) and tannic acid (TA) as well as the effects of TA adsorption on the dispersibility and biocompatibility of CNTs were evaluated.
A novel core–shell nanostructured WO 3 is investigated in detail and shown to work successfully as an electron transporting material in hybrid perovskite solar cells. A thin TiO 2 shell reduces charge recombination while highly textured single-crystal WO 3 nanostructures promote fast electron transport leading to an e…
Yttrium iron garnet (YIG, Y 3Fe5O12) films have been epitaxially grown on Gadolinium Gallium Garnet (GGG, Gd3Ga5O12) substrates with (100) orientation using pulsed laser deposition. The films were single-phase, epitaxial with the GGG substrate, and the root-mean-square surface roughness varied between 0.14 nm and 0.2…
In response to the ever-increasing global demand for viable energy-storage systems, sodium and potassium batteries appear to be promising alternatives to lithium ion batteries because of the abundance, low cost and environmental benignity of sodium/potassium. Electrical energy storage via ion-intercalation reactions i…
Similar to their optic counterparts, acoustic components are anticipated to flexibly tailor the propagation of sound. However, the practical applications, e.g. for audible sound with large wavelengths, are frequently hampered by the issue of device thickness. Here we present an effective design of metasurface structur…
We report the structure of the Zr metal–organic frameworks (MOFs) UiO-66 and UiO-67 to very fine detail using synchrotron single-crystal X-ray diffraction and the synthesis method used to obtain single crystals. Zr terephthalate MOF UiO-66 is known to have missing linkers, and the nature of these are shown to be coord…
We report on the design, verification and performance of MuMax3, an open-source GPU-accelerated micromagnetic simulation program. This software solves the time- and space dependent magnetization evolution in nano- to micro scale magnets using a finite-difference discretization. Its high performance and low memory requ…
Zn-Mg alloys, in which Mg is an alloying element, are proposed for medical applications as a promising biodegradable material for temporary implants in orthopedics or traumatology. They can be used to replace nonfunctional or damaged tissues. When the healing process of tissues is finished, the Zn-Mg alloys are gradua…
A fully analytical model for the quantum capacitance of AGNR-FETs is proposed in order to explore several finite-size and edge effects. It is demonstrated that, the quantum capacitance of sub-10 nm AGNRs versus channel potential, has a non-monotonic behavior with peak values and corresponding channel potentials which…
SiO2f/SiO2composites reinforced with 3D six-directional preform were fabricated by silicasol-infiltration-sintering method. To characterize the mechanical properties of the composites, mechanical testing was carried out under various loading conditions, including tensile and shear loading. All of the testing curves ex…
To increase the wrinkle resistant property of tussah silk fabric, the eco-friendly crosslinking agents of citric acid (CA) was applied to tussah silk wrinkle resistant finishing process. Tussah silk fabric was treated with a conventional pad-dry-cure method. The finishing effects of tussah silk fabric including wrinkl…
This paper presents a numerical algorithm to analyze the magnetizing process of a four-pole isotropic bonded NdFeB permanent magnet, which is magnetized by using a capacitor discharge impulse magnetizing fixture. In order to predict the distribution of residual magnetic flux density accurately, a vector Jiles-Atherton…
In this study, the channel size dependence of the shear stress between water droplets and solid walls in nm-order channel was analyzed. We considered a several different-sized and highly hydrophobic channel whose macroscopic contact angle was about 150 degrees. We have evaluated the shear stress and the normal pressur…
Reed Pulp was Raw Material that Pretreated by Four Methods {ultrasonic, Microwave, N, N-Dimethyl Acetamide (DMAc) and Tetrahydrofuran (THF)}. Reed Microcrystalline Cellulose (MCC) was Prepared by the Dilute Hydrochloric Acid Hydrolysis from Pretreated Reed Pulp. the Influences of Pretreatment Methods on Crystalline Ty…
Phosphorus-containing epoxy resins with different phosphorus content were obtained from 2-(Diphenylphosphinyl)-1, 4-benzenediol (DPO-HQ) and biphenyl-A epoxy resin by crosslinking with 4, 4’-diaminodiphenylsulfone (DDS). The thermal degradation kinetics of the modified epoxy resins containing different phosphorus cont…
The intermetallic compound Mg 2 Ni as a potential material for hydrogen storage has been investigated theoretically. The sorption and diffusion of a hydrogen atom in the bulk and on the surface of this material, as well as the step-by-step process of dissociative chemisorption of a H 2 molecule on the surface, have be…