Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Nanotube forest behaves as highly absorbent material when they are randomly placed in sub-wavelength scales. Furthermore, it is possible to create diffractive structures when these bulks are patterned in a substrate. Here, we introduce an alternative to fabricate intensity holograms by patterning fringes of nanotube f…
The combination of optical concentration, spatial spectral splitting and the use of multiple cells of suitable bandgap, could provide a path for high PV conversion efficiency without requiring the use of monolithically integrated multi junction solar cells. We propose a dispersive point focus single element concentrat…
Anisotropic-gap and two-band effects smear out the superconducting transition (Tc) in literature reported thermal conductivity of MgB2, where large electronic contributions also suppress anomaly-manifestation in their negligible phononic-parts. Present thermal transport results on scarcely explored specimens featuring…
The sol–gel microencapsulation of free-radical initiator benzoyl peroxide in sol–gel methyl-modified silica microcapsules of core/shell geometry allows curing of acrylate-based polyurethane and polyester resin formulations sprayed from a pressurized can without the need to compartmentalize reactants from the initiator…
Electronic excited states at a bcc(110) lithium surface, both bare and covered by ionic ultrathin (1--2 monolayers) LiF epitaxial films, are investigated via many-body perturbation theory calculations achieving an atomistic level of detail. The full self-consistent solution of the GW equations is used to account for c…
An industrial pre-reduced iron catalyst for ammonia synthesis was reduced at 773 K and heated in the hydrogen atmosphere at temperatures in the range of 773 K – 973 K. Samples of different mean sizes of nanocrystallites depending on heating temperature were obtained (773 K 20 nm, 823 K 30 nm, 873 K 35 nm, 923 K 38 nm…
We discovered that adding H2 to the carrier gas in GaN barrier growth improved the light emitting diode (LED) peak quantum efficiency and shifted the efficiency maxima toward lower currents (∼20 mA). This implies that the Shockley–Read–Hall nonradiative process can be suppressed via the introduction of combination car…
The article deals with the influence of laser beams, which when acting on materials affect their surface. Depending on the intensity of exposure and the speed of displacement of the beam, due to the heating of the material and the subsequent cooling, there occurs the change in the pattern of the surface and of course…
As optical lithography is extended to the 14nm and 10nm technology nodes, sidewall angle (SWA) control of photomask features becomes increasingly important. The experiments to be reported here study SWA for advanced attenuated phase-shift photomasks. SWA is evaluated from three perspectives. First, the effects of mask…
J. H. Park, J.-W. Kang, and co-workers report a highly bendable and efficient organic solar cell. On page 4177, it is created using solution-processed metal nanowire electrodes on top of a plastic substrate. The solar cell device exhibits a high powerconversion efficiency and outstanding mechanical bending characteris…
In this study, influence of draw ratio, hot-pin temperature, and overfeeding on the color values of air-jet textured yarns, which were produced from polyester partially oriented yarn, was investigated. Two different air-jet textured yarns were produced by setting the value of only one variable to its minimum and maxim…
Abstract By using a simple solution chemistry approach with polyvinyprrolidone (PVP) as a capping agent, Mn2W(CN)8·xH2O microcrystals with unique morphologies including rice‐like, rod, octahedron, square platelet, and hollow‐core square platelet have been successfully synthesized. The influence of experimental paramet…
The Förster resonance energy transfer (FRET) properties in poly(methyl methacrylate) copolymers containing 2-(pyridine-2-yl) thiazole dyes were studied upon systematic variation of the donor-to-acceptor ratio. To this end, 2-(pyridine-2-yl) thiazole dyes specially designed for the usage as energy donor and acceptor mo…
In this work, the secondary piezoelectric effect in the ferroelectric 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 crystal was measured and characterized. The reverse internal electric field induced by the secondary piezoelectric effect shows a good linear response to the applied external electric field over the measured frequency r…
ABSTRACT In general, the complexation and gelation behavior between biocompatible poly(ε‐caprolactone) (PCL) derivatives and α‐cyclodextrin (α‐CD) is extensively studied in water, but not in organic solvents. In this article, the complexation and gelation behavior between α‐CD and multi‐arm polymer β‐cyclodextrin‐PCL…
Abstract The polycrystalline colossal magnetoresistive double‐layered manganite samples R 1.2 Sr 1.8 Mn 2 O 7 (R = La, Pr, Nd, Sm) were prepared by the sol–gel method and their room temperature elastic behavior was investigated by ultrasonic pulse transmission technique at 1 MHz. The values of elastic constants were c…
It would seem that with appropriate treatment almost any agricultural residue may be used as a suitable raw material for the wood-based panels like particle- and fiberboard production. The literature on wood-ligno-cellulose plant composite boards highlights steady interest for the design of new structures and technolo…
Oligoamide macrocycles with a backbone partially constrained by hydrogen bonds have been prepared. These macrocycles, carrying multiple H-bonding side chains, underwent strong aggregation in solution and form long fibers in the solid state. In contrast to the strong and specific complexation of the guanidinium ion by…
Substituted imidazole and benzimidazole often form polar hydrogen-bonded chains in the solid state. 2-Methylbenzimidazole is known to be a high-temperature organic ferroelectric. We have measured temperature dependences of 14 N nuclear quadrupole resonance (NQR) frequencies and proton T 1 in 2-methylbenzimidazole and…
Abstract Active packaging is used to preserve food, maintaining or improving its features and microbiological safety. In this research was developed flavoring films and evaluated changes in the films as function of the addition of active agents and their contact with food. We determined the water vapor permeability (W…