Materials Literature
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The electronic structures of graphene nanoflakes (GNFs) exposed to an organo-silane precursor [tetramethylsilane, TMS, Si(CH 3 ) 4 ] were studied using electron field emission (EFE), Raman spectroscopy, X-ray absorption near-edge structure (XANES), X-ray photoelectron spectroscopy (XPS), X-ray emission spectroscopy (X…
We report theoretically and experimentally a dc magnetoelectric sensor consisting of a thickness-polarized 0.7Pb(Mg1/3Nb2/3)O3–0.3PbTiO3 (PMN-PT) piezoelectric single-crystal plate arranged along the longitudinal direction and sandwiched between a pair of electrically connected aluminum strips. The operation of the se…
Rod‐like high‐purity β‐Sialon(Si 6− z Al z O z N 8− z , z =1,2,3) powders were synthesized from the mesoporous SiO 2 /C/Al 2 O 3 composites, that were prepared using a nanocasting procedure, through a carbothermal reduction–nitridation method at 1420°C. The XRD analysis provided considerable evidence regarding the hig…
Photoluminescence (PL) of ZnCdO alloy with medium Cd concentration (50 wt %) is studied at different temperatures and at varying excitation intensity. The PL peak position shows red-blue-red (S-shaped) shift with increase in temperature due to potential fluctuations on alloying. The line width of PL profile shows incr…
We present a method to perform in situ microrheological measurements on monolayers of soft materials undergoing viscoelastic transitions under compression. Using the combination of a Langmuir trough mounted on the inverted microscope stage of a laser scanning confocal microscope we track the motion of individual fluor…
Abstract Large‐yield zinc oxide (ZnO) nanosized tetrapods have been obtained by a standard vapour‐phase growth technique to which a few modifications have been added, such as the separation of the Zn source evaporation region from the Zn oxidation region inside the reactor setup. This modification allows to keep the g…
Abstract Perfluoroisopropyl‐substituted zinc phthalocyanines conjugated with deoxyribonucleosides have been synthesized and evaluated as photodynamic therapy agents from both spectral and biological points of view. They show non‐aggregation, high chemical stability and good fluorescence quantum yields in both organic…
Helium bubbles form in metal tritide films as tritium decays into H3e, influencing mechanical properties and long-term film stability. The bubble nucleation and growth mechanisms comprise an active research area, but there has been only one previous systematic experimental study of helium bubble growth in metal tritid…
Previous work by the authors indicated that the addition of nanomagnesia or colloidal alumina to alumina–magnesia (AM) refractory castables resulted in benefits in terms of reducing the overall linear expansion during heat‐up. Considering this aspect, this paper addresses the effects of colloidal alumina sources conta…
Abstract In order to assess the changes in soil K pools as affected by K‐fertilizer application and the impact of the changes on K balance, grain yield, and K uptake, an experiment was conducted in Central Zhejiang Province, E China, in a continuous double‐cropping rice system. Two sites were selected: (1) the Agricul…
We performed detailed ac susceptibility measurements on Pr1−xAgxMnO3 (x=0.15,0.20) manganites and observed unusual and interesting features, which are associated with the domain walls and the effects of grain-boundaries on their movements. It is shown that the ac field, frequency, temperature, thermal cycling, and gra…
The main objective of this study is to establish the applicability of novel thermoplastic films based on extracted gelatins from bovine (Gb) and bird (Gc) bones in addition to hide powder (HP), which blended with modified polyethylene (MPE) for the removal of heavy metal ions such as copper (II), chromium (VI), nickel…
The effects of ultraviolet (UV) irradiation on the relaxation processes in Ba0.3Sr0.7TiO3 thin film capacitors were experimentally investigated in a range of wavelengths λ=(310–400) nm. It was observed that irradiation with a specific wavelength reduces the time of slow capacitance relaxation up to three orders of mag…
Poly aniline and poly aniline doped with 2,5-dimethyl benzene sulfonic acid (PXSA), 4-hydroxy-m-benzene disulfonic acid (PDSA), 3-chloro-4-hydroxybenzene sulfonic acid (OCPSA) were prepared. The polymers are identified by FT-IR and UV–vis spectroscopy. The ionic conductivities of poly aniline and poly aniline doped wi…
The crystallisation kinetics of bulk Se75Te15− x Cd10In x (x = 0, 5, 10 and 15) multi-component chalcogenide glasses have been studied using differential scanning calorimetry with different heating rates (5, 10, 15 and 20 K/min) under non-isothermal conditions. Various kinetic parameters of crystallisation, such as th…
The X-band electron paramagnetic resonance in La0.5Ca0.5MnO3 was studied. Fitting the measured temperature dependence of the EPR linewidth and intensity to established models were employed to probe the effects of finite-size and nonstoichiometry. Regarding these effects, the complex mixed magnetic ordering inherent in…
Polynorbornenes appended with porphyrins containing a range of different linkers are synthesized. The use of bisamidic chiral alanine linkers between the pending porphyrins and the polymeric backbone has been shown to bring the adjacent porphyrin chromophores to more suitable orientation for exciton coupling owing to…
Abstract Ultralong α‐Ni(OH) 2 nanobelts with uniform size have been prepared on large scale via a facile template‐free hydrothermal method. The as‐prepared nanobelts were single crystals, with several tens of microns in length and about 100 nm in width. For the whole process, a novel nucleation–aggregation–dissolution…
SmCo 5 ( 0001 ) epitaxial thin films were prepared on Cu(111) underlayers heteroepitaxially grown on Al2O3(0001) single-crystal substrates by molecular beam epitaxy. The effects of substrate temperature and Cu underlayer thickness on the crystallographic properties of SmCo5(0001) epitaxial films were investigated. The…
Abstract The effect of titanium addition on the structure and magnetic properties was studied for the nanocomposite Nd 7 Fe 79– x B 14 Ti x and Nd 8 Fe 78– x B 14 Ti x systems. The alloys were rapidly solidified by melt‐spinning with the roll speed 20 m/s. The overquenched, amorphous ribbons were subsequently crystall…