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。
When multiferroic terbium manganite (TbMnO3) crystal cylinders are periodically arranged in a square lattice, the resulting two-dimensional (2D) system exhibits photonic band gaps (PBGs). The absolute PBG originating from the Mie resonance is modulated from closed to open by applying an external static magnetic field,…
The diffraction efficiency of gratings etched into fused silica was measured and modelled. 950, 2120 and 3710 nm period gratings were fabricated with the use of two-beam interferometric laser-induced backside wet etching (TWIN-LIBWE). The spatial distribution of the modulation depth (MD), determined from AFM measureme…
Abstract A novel redox-active calix[4]arene-TTF 5 was prepared by the reaction of p-tert-butylcalix[4]arene 4 with the tosylated TTF 3 in the presence of cesium fluoride. The structure of the dyad 5 was identified by X-ray diffraction analysis, and the preliminary electrochemical properties of 5 were investigated by c…
The molecular dynamics of crosslinked polyurethanes have been studied by dielectric spectroscopy and compared with the dynamics of linear polyurethanes. Two local relaxations, γ and β, and a primary relaxation, α, were observed for all the samples, appearing in relation with the increase in temperature. The conductivi…
Diffusion processes are among the most important technical operations in various industries, especially chemical, pharmaceutical, and food production. In the diffusion model, it is assumed that viscous forces and permeability barriers within the microstructure of the biological material prevent coherent velocity ªow o…
We investigate the emission properties of a polarizable point dipole placed within a subwavelength distance from a silver or a slightly absorbing, negative-index metamaterial nanoslab. Using electromagnetic theory we show that in the immediate vicinity of the slab the dipole-slab interaction prevents the dipole from r…
Recently, various triangular [Mn${}^{\mathrm{III}}$]${}_{3}$ molecules have been extensively studied due to the fact that one can modulate the magnitude and the sign of the inter-ion exchange, thereby giving rise to very simple clusters that constitute some of the cleanest and best examples of so-called single-molecul…
As quantum dot (QD) bioconjugates are increasingly being used for biomedical in vitro and in vivo studies, validated methods for the quantitative determination of QD concentration are of considerable potential value. In this work, we have assessed inductively coupled plasma mass spectrometry (ICP-MS) as a method for t…
Tailoring the chemo-mechanical properties of metal-dielectric interfaces is crucial for many applications including nanodevice wiring, packaging, composites, and catalysis. Here, we combine moisture-induced fracture tests, electron spectroscopy, and density functional theory calculations to reveal fracture toughness p…
We studied the photoluminescence of ZnMgO thin film, grown by the radiofrequency sputtering method, as a function of excitation intensity and temperature. As the excitation intensity increases, a nonlinear emission band caused by the radiative recombination of the inelastic exciton-exciton scattering was detected at l…
The pressure vessel constitutes the most important structural component in a nuclear reactor from the point of view of its safety. The core of the reactor, that is, the nuclear fuel, is accommodated inside the vessel. This material is composed of fissile nuclides that undergo chain nuclear reactions of an exothermic n…
2-(2′-Pyridyl)imidazole L1 and its corresponding boron–fluorine complex, 1, were synthesized and their crystal structures correlated with their photophysical properties. L1 forms a rigid supramolecular network through hydrogen bonds and halogen bond in the single crystal, which induces amplified spontaneous emission i…
Structurally defective and highly crystallized chromium (Cr)-doped indium oxide samples are fabricated by rf sputtering. Both samples with 4% Cr doping show a very weak saturation magnetization of ∼0.05μ B /Cr. The magnetization of the structurally defective Cr-doped films as low as 2.8% is significantly enhanced to ∼…
We report water-in-oil (W/O) microemulsion synthesis of fluorescently bright and paramagnetically strong bimodal chitosan nanoparticles (BCNPs). The W/O microemulsion system provides a confined environment for producing monodispersed BCNPs. Average particle size as estimated by the Transmission Electron Microscopy was…
Glückliche Ehe: Die erste fusionierte TCNQ–TTF–TCNQ-Triade wurde synthetisiert und strukturell charakterisiert. In der TTF-Brücke und den Benzo-TCNQ-Einheiten wurde eine starke Krümmung beobachtet, was eine gute Packung für intermolekularen Ladungstransfer verhindert. Die Vis/NIR- und VT-EPR-Studien der gemischtvalent…
Poly(D-lactide)s (PDLA) having an end group of trimethoxysilyl (P(x)-Si-(OMe)(3)) or monoethoxydimethylsilyl (P(x)-Si-OEt) group were synthesized to immobilize macromolecular chains of polylactide onto a flat silicon surface by the "grafting onto" mechanism. Both the end-functional PDLAs were efficiently immobilized o…
We investigated nonlinear absorption and photobleaching processes in a liquid-crystal elastomer doped with light-sensitive azobenzene moiety. A conventional one-dimensional holographic grating was recorded in the material with the use of two crossed UV laser beams and the angular dependence of the diffraction efficien…
Transparent conducting aluminum-doped zinc oxide (AZO) films have been prepared on glass substrates by dc magnetron sputtering using ceramic ZnO with 2 wt% Al 2 O 3 target. The mechanism of negative oxygen ion generation on an AZO target surface and its influence on the conductivity of films were discussed. The negati…
The enhancement of weak Raman signals has been challenged to obtain high-quality signals of surface-enhanced Raman scattering (SERS). By employing the Parkinson's disease-related protein of α-synuclein, we introduce SERS-active gold nanoparticles (AuNPs) individually isolated with an ultrathin α-synuclein shell and th…
We review the differences between bubble formation in champagne and other carbonated drinks, and stout beers which contain a mixture of dissolved nitrogen and carbon dioxide. The presence of dissolved nitrogen in stout beers gives them several properties of interest to connoisseurs and physicists. These remarkable pro…