Materials Literature
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Analogously with Cu(In,Ga)Se 2 , CuInS 2 shows a high degree of spatial inhomogeneities in structural, optical and electronic properties on the length scale of grain sizes and above which is caused by the grainy structure and the inhomogeneous growth of absorber layers. To analyse these locally fluctuating magnitudes,…
A tetranuclear complex [Zn4(L)4(μ 2-L)2(OH)2(H2O)6] (1) and a trinuclear complex [Zn3(μ 2-L)6(H2O)2] (2) have been prepared by treatment of HL (HL = 3-(4-carboxyphenylhydrazono)pentane-2,4-dione) with ZnCl2· 2H2O or Zn(NO3)2· 6H2O in methanol solution, respectively. Both molecular structures have been characterized by…
Abstract Photoconductivity and photoluminescence of HgCdTe‐based nanostructures with 50 to 200 nm‐wide potential wells were studied. The structures were grown by molecular beam epitaxy on GaAs substrates, and emitted light with wavelengths 2.8–3.8 μm at 300 K. The luminescence properties of the nanostructures at low t…
A new one-dimension Cd(II) coordination polymer [CdL2(NCS)2] n (L = (C5H4N)C(CH3) = N−N = C(CH3)(C5H4N)) has been synthesized and characterized by IR, UV, elemental analysis, TG technique and X-ray crystallography. Cd(II) atom has an distorted octahedral environment with a N6 donor set from four ligands and two NCS− a…
Intense nanosecond laser pulses were delivered to sub-diffraction limit spots on pure Si wafers with a near field scanning optical microscope (NSOM) for possible nanoscale direct patterning. Compared with the previous results obtained with a femtosecond laser, no evidence of nanoscale laser ablation on Si targets was…
Abstract ZnMgTe/ZnTe layered structures were grown on ZnTe substrates by molecular beam epitaxy, and the crystal structures were characterized using X‐ray diffraction methods. This structure would be the waveguide for various optoelectronic devices. Therefore, the crystal quality of this layered structure would be ver…
In this work, a new feeding policy structure for an alternative operation mode of the packed bed membrane reactor (PBMR) is proposed in order to increase the efficiency of the OCM— oxidative coupling of methane —process. This structure has a high potential to improve the process performance in comparison to fixed bed…
Employing the Bethe–Salpeter equation (BSE) and the Matsubara recipe, and invoking both the electron–electron and the hole–hole scattering channels, we establish that the binding energy (W) of a Cooper pair (CP) is real, and equals the BCS energy gap (Δ) for all T ≤ Tc for a one-component superconductor. Given that th…
Abstract Localized deformations such as shear bands, compaction bands, dilation bands, combined shear/compaction or shear/dilation bands, fractures, and joint slippage are commonly found in geomaterials like soil and rock. Thus, modeling their inception, development, and propagation, and effect on mechanical response…
We have developed a simple, mild method for N-formylation of a wide variety of amines in the presence of indium metal as a catalyst under solvent-free conditions. This reaction is applicable to the chemoselective N-formylation of amino groups and α-amino acid esters without epimerization.
Use of 2-(6-mercaptohexyl) malonic acid to adjust the morphology and electret properties of cyclic olefin copolymer and its application to flexible loudspeakers, Ko, Wen-Ching, Tseng, Chien-Kai, Leu, Ing-Yih, Wu, Wen-Jong, Lee, Adam Shih-Yuan, Lee, Chih-Kung
Measurement of the x-ray mass-attenuation coefficients of gold, derived quantities between 14 keV and 21 keV and determination of the bond lengths of gold, Glover, J L, Chantler, C T, Barnea, Z, Rae, N A, Tran, C Q
Ionic polymer metal composites (IPMCs) belong to electroactive polymers (EAPs) and have been suggested for various applications due to their light weight and to the fact that they react mechanically when stimulated by an electrical signal and vice versa. Thick IPMCs (3D-IPMCs) have been fabricated by hot pressing seve…
Structures with self-assembled InAs quantum dots (QDs) embedded in an AlAs matrix have been studied by steady-state and transient photoluminescence. It has been shown that in contrast to InAs/GaAs QD systems carriers are mainly captured by quantum dots directly from the AlAs matrix, while transfer of carriers captured…
Neutron and β/γ Radiolysis of Water up to Supercritical Conditions. 1. β/γ Yields for H 2 , H • Atom, and Hydrated Electron Page 7777.In the referenced work, pressure was measured with an Omega PX01 series gauge and strain gauge panel meter (Omega DP25B-S) of (0.2 bar stated accuracy.Unfortunately, the pressure readou…
Single crystal of ternary uranium-based silicide ${\text{U}}_{2}{\text{NiSi}}_{3}$, which crystallizes with a disordered hexagonal ${\text{AlB}}_{2}$-type structure, was investigated by means of magnetic, resistivity, heat capacity, and neutron-diffraction measurements. While dc magnetic characteristics and neutron-di…
To clarify the reason for the coexistence of long-range antiferromagnetic order and metallic conductivity for ${\text{NaV}}_{2}{\text{O}}_{4}$, in which the V ions form quasi-one-dimensional zigzag chains along the $b$ axis, we have performed a neutron-scattering experiment using a powder sample down to 20 K. The anal…
The structural heterogeneities in networks produced by UV- and by electron beam-initiated polymerization of aromatic diacrylates were unambiguously revealed by AFM imaging and studied by means of temperature-modulated differential scanning calorimetry. Two main second-order thermodynamic transitions were observed duri…
Zeolite Y was systematically synthesized from Ahoko Nigerian kaolin in a conventional hydrothermal system using novel metakaolinization technique. The effect of aging on the formation of zeolite phase was investigated during the course of the synthesis. A rapidly processed metakaolin at a temperature of 600°C and expo…
Strategies for exploring anionic templates to direct sophisticated supramolecular assembly have attracted attention. Herein, a series of new anion receptors 1-3 containing two indole-based binding sites bridged by linking spacer pyrazino[2.3-g]quinoxaline (PQ) have been rationally designed and prepared from the precur…