Materials Literature
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Electron accumulation with a sheet density greater than 1013 cm−2 usually occurs at InN surfaces. Here, the effects of treatment with ammonium sulfide ((NH4)2Sx) on the surface electronic properties of highly Mg-doped InN (>4×1018 cm−3) have been investigated with high resolution x-ray photoemission spectroscopy. The…
The superiron salts BaFeO 4 and K 2 FeO 4 when utilized as battery cathodes both undergo a three electron charge transfer; however, they exhibit significantly different physical and electrochemical properties. K 2 FeO 4 exhibits higher solid-state stability and higher intrinsic 3e – capacity (406 mAh/g) than BaFeO 4 (…
Vertically aligned carbon nanofibers (VACNFs) were grown by plasma-enhanced chemical vapor deposition (PECVD) using Ni nanoparticle (NP) catalysts that were deposited by airbrushing onto Si, Al, Cu, and Ti substrates. Airbrushing is a simple method for depositing catalyst NPs over large areas that is compatible with r…
The thermal performance of Cu/Al interface structure is studied based on the investigation of the diffusion interfacial thickness, phonon scattering and phonon coincidence degree by using the NEMD (non-equilibrium molecular dynamics) method under different temperatures. There is an interesting phenomenon that the ther…
In this paper, I have tried to analyze the electrical properties and the experimental data related to drain current–drain voltage of the Zn 0.7 Mg 0.3 O / ZnO / Zn 0.7 Mg 0.3 O heterojunction field effect transistor by use of Hoffman nonideal model theoretically. Also by use of different scattering mechanisms in two-d…
A new kind of high-performance asymmetric supercapacitor is designed with pyrolyzed bacterial cellulose (p-BC)-coated MnO2 as the positive electrode material and nitrogen-doped p-BC as the negative electrode material, via an easy, efficient, large-scale, and green fabrication approach as described by Shu-Hong Yu and c…
Flexible integrated circuits consisting of carbon nanotube thin-film transistors (CNTTFTs) were fabricated on a poly(ethylene naphthalate) (PEN) substrate by the transfer technique of the CNT network. The CNT network grown on a SiO2/p+-Si substrate by plasma-enhanced chemical vapor deposition was transferred onto the…
In order to enhance the photoconductivity of 3C-SiC by high Al doping, the Al/N codoping has been investigated using the first principles calculation. Several structural models were constructed, i.e., Al1/N, Al2/N, Al3/N, and Al4/N. Structural stability and electronic property of Al/N codoped 3C-SiC with different mod…
Patterning of microspheres with well-dispersed metallic nanoparticles (NPs) is a challenging task owing to NPs' high agglomeration potential. Here, a simple, three-step method is presented to decorate glass beads with gold nanoparticles arranged in a quasi-hexagonal manner. Such nano-modified particulate materials can…
Scalable methods, PRINT particle fabrication, and spray-assisted layer-by-layer deposition, are combined by Paula Hammond, Joseph DeSimone and co-workers on page 4707 to generate uniform and functional nanotechnologies with precise control over composition, size, shape, and surface functionality. A modular and tunable…
In this paper, we analyze the internal picosecond dynamics of enantiomeric ((S)-) and racemic ((R,S)-) ibuprofen (IBP), when forming inclusion complexes, in solid state, with methyl-β-cyclodextrin (Me-β-CD), by inelastic and quasi elastic neutron scattering. The study was aimed at understanding, by the analysis of the…
In order to control yarn vibration and improve carpet quality, it is essential to research the fluctuation of yarn tension and its influences during tufting process. Assuming the polypropylene yarn has linear elasticity with a circular cross-section, we take the dynamic tension as the output and the friction acted on…
This work was devoted to the description of the effect of alloying by transition metals (Cr, Cu, Fe) on the structure and properties of TiAl15Si15 alloy. Alloying elements does not form separate phases, being dissolved in titanium silicide or aluminide. Cu was found predominantly in aluminide phase, while iron was fou…
A graptolitic association composed by Climacograptus sp., cf. Climacograptus minutus Carruthers, Diplograptus sp., and Monograptus sp., was found in the Rinconada Formation at the type locality. The faunistic association points out to an Early Silurian age (Llandoverv), probably equivalent to the bioestratigraphic zon…
In the era of sub-30nm devices, the size of the defects on semiconductor wafer has already exceeded the resolution limit of optic microscope, but we still can't help using optical inspection tools. Therefore, the contrast enhancement technique is more useful rather than the resolution itself. The best contrast can be…
Study of electronic properties of graphene on an anisotropic crystal substrate including boron nitride (BN) has raised significant interest recently due to the application of graphene based vertical hetero-devices. We have performed scanning tunneling microscopy (STM) and scanning tunneling spectroscopy studies of sin…
Controlling the cooling rate during calcination and sintering, phase pure perovskite Ba(Zn 1/3 Nb 2/3 )O 3 has been prepared by simple solid state reaction route with density >93% at relatively low sintering of 1175°C making it compatible for microwave dielectric applications. The samples are characterized by X-ray di…
Using diverse bandgap photovoltaic cells can improve solar conversion efficiency, but these systems also require efficient dispersive optics to direct portions of the solar spectrum onto the appropriate optimized cells. We use an extended coupled-mode model to show how multiplexed volume gratings interact with one ano…
The paper is focused on the experimental investigation of the montmorillonite nanofillers effect on deformation properties of polystyrene KRASTEN 171. The combination of a low amount of clay with dispersed polymeric phase may cause synergistic effects leading to very fair balance of mechanical behaviour in some cases.…
Electron beam lithography is a promising technology for next generation lithography. Compared to optical lithography, it has better pattern fidelity and larger process window. However, the proximity effect caused by the electron forward scattering and backscattering in the resist and the underlying substrate materials…