Materials Literature
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The paper discusses the reason why the image resolution can be significantly enhanced by the superlens with anti-reflection and phase control coatings (ARPC-superlens) via analyzing the surface plasmons (SPs) modes. ARPC-superlens is an asymmetric structure with finite thickness, in which we first find that there are…
A zwitterionic semisquaraine 1,3-regioisomer which exhibits distinct photophysical properties and chemical reactivity was isolated. Uniquely, this isomer has been identified as the reactive intermediate in the squaraine dye formation reaction rather than the neutral 1,2-isomer and opens up new avenues for the synthesi…
Detailed study of the synthesis parameters of silver doped with the organic dye Congo-red (CR@Ag) have led to an understanding of the origins of the superior performance of this novel-type methanol-oxidation catalyst (compared to pure silver) as demonstrated by the significant lowering of the temperature needed to rea…
P -type phosphorus-doped ZnO (ZnO:P) films were fabricated by atomic layer deposition of ZnO upon the amorphous silica substrates, which were prepared by coating the spin-on dopant consisted of P 2 O 5 and SiO 2 on silicon wafers. Post-deposition thermal treatments were carried out to diffuse the phosphorus dopants in…
Due to the high hydrogen capacity of LiBH4, various strategies have been investigated to improve the hydrogen release properties of LiBH4. Theoretical calculations suggest that doping LiBH4 with F-/CI- anions may generate lattice substitutions (such as the formation of LiBH3F or LiBH2F2), which will lower the hydrogen…
Abstract Conducting composites of polyaniline doped with dodecylbenzenesulfonic acid (PAni‐DBSA) and poly(styrene‐b‐styrene‐butadiene‐b‐styrene) (STF) as supporting matrix were prepared by in situ synthesis. The influence of composition and thickness on the electromagnetic properties and shielding effectiveness (SE) o…
CuAlO x thin films were prepared at three substrate temperatures (TS=60, 300, and 600 °C) and two oxygen partial pressures (PO2=0.5 and 2 mTorr) via dc reactive magnetron sputtering from Cu–Al 50–50 at. % alloy targets and subsequent annealing. As-deposited films with PO2=0.5 mTorr were oxygen deficient; although the…
Electroless copper(Cu) deposition on multi-walled carbon nanotube(MWCNT) activated with silver nitrate was developed and the mechanism was proposed. The Cu/MWCNT hybrid nanowires with MWCNT coated with about 30 nm uniform and continuous crystalline Cu layer which have preferred crystal orientation along the (111) plan…
We report a click chemistry approach for the consecutive layer-by-layer assembly of thermo- and pH-sensitive clickable copolymers on silica particles and the subsequent formation of vesicle-like dual-responsive click capsules. These click capsules exhibit both thermo- and pH-responsive behaviors by elevating the solut…
The effect of alloying on the texture of Mg-Nd-Zr and Mg-Li alloy sheets is studied using pole and inverse pole figures. The basal texture intensity in rolling of Mg-Nd-Zr alloys is shown to be substantially decreased due to the precipitation of dispersed intermetallic Mg 12 Nd phase particles. As a result, the workab…
Single-crystalline wurtzite CdS nanowires underwent gas-phase substitution to form unique superlattice cubic Cu1.8S (digenite) and hexagonal Cu2S (chalcocite) structures, using thermal evaporation of CuCl2 at 500∼600 °C. The Cu1.8S nanowires consisted of superlattices along the 〈111〉 direction, with controlled growth…
The dependence of electrical, optical, structural, and surface properties on the thickness of Ga-doped ZnO (GZO) thin films deposited on glass substrates by cylindrical rotating magnetron sputtering (CRMS) was investigated. The resistivity of the CMRS-grown GZO films gradually decreased from 7.4×10 −3 Ohm-cm to 4.9×10…
From time to time, the gap between sintering science and technology is being attempted to be bridged, but there are still a number of unresolved issues in sintering. So far, only thermal energy was considered for accomplishing sintering of a powder compact. However, other sources of energy may be treated exclusively o…
A solid oxide fuel cell (SOFC) unit is constructed with Ni–yttria-stabilized zirconia (YSZ) as the anode, YSZ as the electrolyte, and La 0.8 Sr 0.2 MnO 3 –Ce 0.9 Gd 0.1 O 1.95 as the cathode. DeNO x tests are performed at 700 to 800°C. NO decomposition occurs over the cathode. The N 2 and O 2 produced as the cathode g…
Abstract In this study, the two-way shape memory effect (TWSME) of a Ni-54.5 at.% Ti alloy was investigated experimentally to develop a NiTi linear actuator. The two-way shape memory effect was induced through a compressive shape memory cycle composed of four steps: (1) loading to maximum deformation; (2) unloading; (…
A series of ruthenium(II) and rhodium(III) porphyrin complexes with diphenyl phenylacetylene phosphine (dpap) was synthesised and fully characterised by UV-vis, 1H NMR and 31P{1H} NMR spectroscopy, and in most cases also by single-crystal X-ray diffraction. The substitution pattern of the porphyrin was varied with inc…
Well-aligned ZnO nanorod arrays (ZNAs) grown on the ZnO seed layers coated ITO substrates ranging in various times from 1.5 to 5 hr have been fabricated from aqueous solutions at low temperature. Morphologies, crystalline structure and optical transmission of as-prepared ZNAs were investigated by a scanning electron m…
Ion exchange of YCl 3 aqueous solutions with anion-exchanger AV-17-8 was used to synthesize yttrium hydroxide as a stable sol having average particle sizes of 3–15 nm and as a powder having specific surfaces of 50–160 m 2 /g.
Nanoparticles exhibit unique size-dependent physical and chemical properties which may be further modified by controlling their spatial arrangement. For example, when metallic nanoparticles are placed sufficiently close together, near-field coupling between surface plasmons occurs which can lead to enhancement. In thi…
We fabricated a hydrophobic surface of polycaprolactone (PCL) and dynamic hydrophobic surface of poly(ethylene oxide) (PEO), which is an inherently hydrophilic material, by varying the surface pattern that is replicated with the lotus leaf. To improve the replication efficiency, we applied an electric field-aided tech…