Materials Literature
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A novel versatile light-triggered strategy is developed to organize inorganic nanoparticles into nanovesicles based on the photo-oxidation of simple and commercial thiols as described on page 5613 by T. Zhang, Z. Tang, Z. Nie, and co-workers. Thanks to the vesicular structures, an improved catalytic activity and unpre…
Delicately designed pure octupolar molecular compounds, tetra(triptycene)porphyrazine and its skeleton expanded derivatives have been studied on the basis of density functional theory. The pure octupolar contribution with better isotropy to the second-order nonlinear optical response for these compounds is revealed, w…
The inside front cover was designed by J. Jiang and co-workers, whose article is on page 857. The background shows a scanning electron microscopy (SEM) image of Ni-Mn oxides and sulfides precursors, from which one can see the morphology of these nanoparticles. The highlighted line in the top of the image stresses the…
On page 5192, Y. Seo and co-workers describe a new benchmark set for dye-sensitized solar-cell performance using a novel dye. The fabrication of a very efficient resonant light-scattering device with a high photocurrent and good stability is described.
Solar power is one of the fastest growing sources of renewable power in the world today.The word “photovoltaic” is a combination of two words “photo”, meaning light, and “voltaic”, meaning electricity. Therefore photovoltaic technology, the scientific term used to describe solar energy, involves the generation of elec…
(0.97-x)BiScO3-xPbTiO3-0.03Pb(Mn1/3Nb2/3)O3(BS-PT-PMN) (x=0.54, 0.56, 0.58, 0.59, 0.60, and 0.62) ceramics were prepared by traditional solid state reaction method. The high Curie temperature Tc, large piezoelectric constant d33and high mechanical factor Qmwere obtained in the ternary solid solutions at the same time.…
Magnetic properties of first obtained polycrystalline films of FeCr 2 O 4 , CoCr 2 O 4 , and CoFe 0.5 Cr 1.5 O 4 multiferroics and films of a Cr 2 O 3 /CoFe 2 O 4 composite multiferroic have been studied. In particular, magnetization curves and temperature dependences of the magnetic moment of the samples were measure…
The corrosion behavior of tantalum in tetraethyl ammonium chloride (TEA) ethanol solutions was investigated using potentiodynamic polarization, cyclic voltammetry, and impedance techniques along with scanning electron microscopy (SEM). At the early stage of scanning, the current density in the cyclic voltammetry curve…
We briefly describe the development of thermocatalytic sensors. Problems associated with instability of sensors during their operation are outlined. We propose that for improving stability, the access of the mixture being analyzed to the reaction chamber must be limited so that the condition in which the sensor output…
Understanding ferroelectricity in polymers presents a formidable challenge, as specific requirements in the crystalline ordering of the polymer chains must be met that run counter to the propensity of polymers to form largely disordered structures. Consequently, poly(vinylidene fluoride) (PVDF:[-CH2-CF2-]n and its cop…
This paper reports a theoretical and experimental study on induced strain in silicon-based rib structures. Simulations of induced stress and strain distribution were performed for nitride-strained silicon; moreover, locally-accurate strain measurements were performed on manufactured rib structures in proximity of the…
.This study successfully simulated the single crystal copper nanocutting by a rigid body /elastic tools with nose radius at the nitrogen gas environment using molecular dynamics, and analyzed the workpiece temperature distribution and dislocation during nanocutting. After simulations, it can be found that when cutting…
Titanium dioxide (TiO2) thin film is deposited using Reactive Radio Frequency (RF) sputtering on Si (100) wafer and annealed in N2for 2 hours at different temperatures i.e. 500°C, 750°C and 1100°C. The TiO2peak is characterized using X-ray diffraction (XRD). At 500°C and 750°C, only anatase peak is observed with the g…
Cuprous oxide thin films were prepared by sol-gel method was successfully deposited onto n-Si substrate. Sol solutions were prepared by dissolving copper (II) acetate in isopropyl alcohol. Diethanolamine and glucopone were added into the sol solution to dissolve the copper (II) acetate rapidly to prevent the precipita…
In this contribution, a new classification of a certain class of metamaterials is presented. The media under discussion are bi-isotropic, in other words their response is not dependent on the vector direction of the electric and magnetic fields of excitation. The classification covers as special cases the recently int…
In order to increase the intrinsic coercivity of the Nd-Fe-B magnets, the aging process optimization had been carried out. The results showed that more than 17 kOe intrinsic coercivity could be obtained by the aging process optimization. The microstructures and the fractures of the Nd-Fe-B magnets treated by the optim…
Material properties in the process of tribo-emission decides the characteristics of both spectra and intensity of triboluminescence. ZnS:Mn semiconductor material was proved to be a high emission triboluminescent material in many investigations; Ce- and Yb-doped hexacelsian possess the excellent shortwave tribolumines…
S Vogt, S-C Gleber, Q Jin, S Chen, L Finney, C Jacobsen, M Ralle, C Fahrni, D Mustafi; Biological X-ray Fluorescence Microscopy: Advances and Unique Opport
Manufacture of fuel tablets from UO2 powder includes many processes, among which shrinkage without application of external loading till now requires explanations. Particles of UO2 are brittle up to ~ 700°C. By cold pressing due to the porous structure of powder billets separate particles are pressing one into another…
The industrial development has been aggravating the atmospheric pollution increasingly. The pollution flashover has always been one of the most important problems that bother the development of electric power system in China. The key to prevent the happening of pollution flashover accident is that the electric power o…