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。
PFPE lubricants (Fomblin Z-dol) for hard disk surface lubrication have two hydroxyl groups, one at each end of the molecules, and form stable insoluble monolayers at the water surface. In this study, molecular weight-fractionated PFPE lubricant monolayers were transferred from the water surface to solid substrates suc…
It is important to model ferroelectric behavior of polymers to understand the physical phenomena exhibited by this kind of material. In this article, a new method based on dry-friction movement is proposed. It is already known that this modeling gives good results for ferroelectric ceramics. However, in the special ca…
Richtungswechsel: Intensität und Richtung der Photoströme in Diaden, die mit Elektroden verknüpft sind, werden durch die Orientierung und Zusammensetzung der Untereinheiten gesteuert. DNA-Template an den Elektrodenoberflächen wirken als Gerüste beim Aufbau der Diaden, die CdS-Nanopartikel oder Ruthenium(II)-Polypyridy…
Temperature rise in a transformer depends on variety of parameters such as ambient temperature, output current and type of the core. Considering these parameters, temperature rise estimation is still complicated procedure. In this paper, we present a new model based on simple electrical equivalent circuit. This method…
Abstract The crossover rate of ethanol or methanol through membrane electrode assembly (MEA) and MEA components was studied quantitatively at 25 and 60 °C by cyclic voltammetry method. The results obtained in this work show that cyclic voltammetry is a powerful technique to assess the crossover phenomenon through MEA…
We demonstrate frequency conversion of surface plasmon polaritons (SPP) by utilizing the coupling between organic dye molecules and SPP. Launching of SPPs into a plasmonic waveguide is done in two ways: by optically excited molecules and by quantum dots (QDs). QDs are demonstrated to overcome the major problem of blea…
In this work, we studied the fluorescence quenching of the anionic conjugated polyelectrolyte PPE-SO(3) by the paramagnetic species 2,2,6,6-tetramethylpiperidine-N-oxide free radical (TEMPO) in aqueous solution. At low quencher concentration the Stern-Volmer constant is 94 mol/L; as the quencher concentration increase…
Abstract Uniform ammonium oxotrifluorotitanate (NH4TiOF3) mesocrystals were synthesized from an aqueous solution containing (NH4)2TiF6 and H3BO3 in presence of nonionic surfactant. Effects of various reaction conditions on the morphology of the NH4TiOF3 mesocrystals were examined by electron microscopy techniques. Res…
Metal-organic chemical vapor deposition (MOCVD) at near room temperature would not only enable integration of oxide films on polymers but would provide the capability of conformal coating of high-aspect ratio features required for fabrication of many micro-and nanoelectronic devices. The concept of near room temperatu…
We report in situ transmission electron microscopy dynamic observations of the early stage oxidation of Cu(111) surfaces at ∼450 °C, which show that the Cu2O film morphology evolves with continued oxidation from initially ramified islands to irregularly connected clusters. The geometrical features of these noncompact…
Nanoparticle impacting on a solid surface always occurs in nano-machining processes, such as the chemical mechanical planarization (CMP) of wafers. Although the material removal induced by nanoparticle impact has been observed in some simulations and tests, the contribution of nanoparticle impact to the material remov…
We have measured the derivative conductance spectra of magnetic tunnel junctions with fully epitaxial bcc-Co electrodes and MgO barrier layers of various thicknesses. For all samples, clear peaks, caused by a minority Δ1 band in the bcc Co(001) electrodes, were observed at around 0.5 V. Below 0.7 V, the dI/dV spectra…
The interfacial atomic structure of epitaxial Fe films grown by molecular beam epitaxy on c(4×4) reconstructed (001) GaAs was investigated using high-angle annular dark-field imaging in scanning transmission electron microscopy. No extended interfacial reaction phase is observed and the image contrast is discussed in…
Abstract A new class of fluorescent dye for sensing water in organic solvents by photo‐induced electron transfer (PET), based on a (phenylamino)naphtho[1,2‐d]oxazol‐2‐yl‐type fluorophore with both proton binding and proton donating sites, has been designed developed. The fluorophore exhibits a weak emission in organic…
Abstract Recently, SrHfO3 compound was proposed as a potential gate dielectric to fabricate metal–oxide–semiconductor field‐effect transistors (MOSFET) with equivalent oxide thickness (EOT) below 1 nm. Here we report the elasticity, electronic structure, and dielectric property of cubic SrHfO3 from first‐principle stu…
Reversible tuning of the transport properties of metallic conducting systems is not reported widely in the literature. Here, we report a junction field-effect transistor (FET) based on a transparent conducting oxide (TCO) nanoparticle channel and a solid polymer electrolyte as a gate. The device principle is based on…
High-quality single-crystalline Ge nanowires with electrical properties comparable to those of bulk Ge have been synthesized by vapor-liquid-solid growth using Au growth seeds on SiO(2)/Si(100) substrates and evaporation from solid Ge powder in a low-temperature process at crucible temperatures down to 700 °C. High na…
Microbead rheology maps the fluctuations of beads immersed in soft matter to viscoelastic properties of the surrounding medium. In this paper, we present modeling extensions of the seminal results of Mason and Weitz [Phys. Rev. Lett. 74, 1250 (1995)] for a single bead and of Crocker [Phys. Rev. Lett. 85, 888 (2000)] a…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Hyeongtag Jeon, Youngdo Won; The reaction pathways of the oxygen plasma pulse in the hafnium oxid…
Previous research has already extensively characterized the effects of a variety of engine oils on engine performance. However, low-phosphorus engine oils, which are of growing importance due to the reduction of automotive emissions, have not been studied much. This paper sets forth the results of an initial investiga…