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。
Doping chalcogenide phase change materials was shown to improve the stability of the amorphous phase at high temperature and to strongly increase the crystallization temperature. In this work, we use $ab$ initio molecular dynamics together with Fourier transform infrared spectroscopy to address the stabilization of Ge…
The nature of the electronic ground states in strained undoped graphene at weak interaction between electrons is discussed. After providing a lattice realization of the strain-induced axial magnetic field we numerically find the self-consistent solution for the time reversal symmetry breaking quantum anomalous Hall or…
A well-known nonsteroidal anti-inflammatory drug (NSAID), namely, naproxen (Np), was conjugated with β-alanine and various combinations of amino alcohols and l-alanine. Quite a few bioconjugates, thus synthesized, were capable of gelling pure water, NaCl solution (0.9 wt %), and phosphate-buffered saline (PBS) (pH 7.4…
Jute fiber-reinforced chemically functionalized polyethylene high density (JF/CF-HDPE) composites have been processed, by Palsule process without using any compatibilizer and without any fiber modification, by using chemically functionalized maleic anhydride grafted polyethylene (MAPE) as matrix, in place of polyethyl…
Au triangular nanoprisms with strong dipole plasmon absorption peak at 1240 nm were prepared by wet chemical methods. Both numerical calculations and experiments were carried out to investigate the optical properties of the samples. Finite difference time domain (FDTD) and Local Density of States (LDOS) calculations d…
Graphene is an atomically thin, transparent, and conductive electrode material of interest for sensors and energy conversion and storage devices, among others. Fully realizing its potential will require robust and general methods to anchor active functionality onto its pristine basal plane. Such strategies should not…
Many biomedical applications benefit from responsive polymer coatings. The properties of poly(dopamine) (PDA) films can be affected by codepositing dopamine (DA) with the temperature-responsive polymer poly(N-isopropylacrylamide) (pNiPAAm). We characterize the film assembly at 24 and 39 °C using DA and aminated or car…
In this work, poly 12-(3-amino phenoxy) dodecane-1-thiol surfactant self assembled on silver nanoparticles was synthesized and characterized by different techniques. The synthesized polymeric surfactant and its nanostructure with the prepared silver nanoparticles were examined as non-toxic corrosion inhibitors for car…
The system Li(x)Na(1-x)NbO3 has been studied by using a combination of X-ray and neutron powder diffraction and (23)Na solid-state NMR spectroscopy. For x = 0.05 we confirm a single polar orthorhombic phase. For 0.08 ≤ x ≤ 0.20 phase mixtures of this orthorhombic phase, together with a rhombohedral phase, isostructura…
Polyphosphazenes are macromolecules with a chain of alternating phosphorus and nitrogen atoms and with two (usually) organic side groups linked to each phosphorus. Although the earliest poly(organophosphazenes) were essentially linear polymers each bearing only one type of side group along the chain, research in our p…
We present an analytical model to quantitatively study the effect of collisions between the atoms of a plume and the molecules of a surrounding gas on the nonstoichiometry of lithium-containing oxide thin films deposited using pulsed laser deposition. A comparison of the experimental data and the model ascertain the i…
This paper reports a melt blend of poly(lactic acid)/liquid natural rubber with Cloisite C30B (C30B). The mechanical, thermal and morphological properties of poly(lactic acid)/liquid natural rubber and nanocomposites were investigated. Results indicate that Young’s modulus and flexural modulus increased with the addit…
In this paper, we show super-resolving single nitrogen vacancy (NV) centers with a sub-20 nanometer resolution in a wide-field localization microscope based on the discovery of photoluminescence blinking in high-pressure high-temperature nanodiamonds (NDs). The photon statistics reveals that NDs containing not only si…
Abstract Finely dispersed powders of neodymium and gadolinium hafnates (Nd 2 Hf 2 O 7 and Gd 2 Hf 2 O 7 ) with pyrochlore structure were synthesized. Variations in particle size and morphology during thermal treatment under different conditions (1273–1673 K, 2–4 h) were studied for these compounds. The vaporization be…
Supported gold nanoparticles are promising catalysts for production of H2O2 from O2 and H2. Size, structure, and palladium doping effects play the key role in activity and selectivity of a gold catalyst. We performed a study of the influence of Au20 and Au19Pd structure features on the main steps of H2O2 formation on…
What does the layered structure of iron-based, high-temperature superconductors mean for the symmetry of the electron-pairing mechanism responsible for their superconductivity? A new theory predicts that the spatial symmetry of the single trilayer building block of these materials leads to a new form of electron pairi…
Abstract This article describes the multistep synthesis and photophysical properties of three highly fluorescent dyes based on the 2‐(2′‐hydroxyphenyl)benzoxazole (HBO) scaffold and their resulting chelation to a BF 2 fragment. These dyes possess functionalization at the 3,5‐positions of the phenol ring with an ethyny…
We introduce a field transformation method for wave manipulation based on completely reciprocal and passive materials. While coordinate transformations in transformation optics (TO) change the size and shape of an object, field transformations give us direct control on the impedance and polarization signature of an ob…
The integration of VO2thin films in a MEMS actuator device is presented. The structural phase transition of VO2was induced electro-thermally by resistive heaters monolithically integrated in the MEMS actuator. The drastic mechanical displacements generated by the large stress induced during the VO2thin film phase tran…
Materials that undergo stimulus-induced optical changes are important for many new technologies. In this paper, we describe a new free-standing silica-based composite film that exhibits reversible thermochromic reflection, induced by a liquid crystalline guest in the pores of iridescent mesoporous films. We demonstrat…