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。
Organic-inorganic halide perovskites, especially methylammonium lead halide, have recently led to a remarkable breakthrough in photovoltaic devices. However, due to the environmental and stability concerns of the heavy metal, lead, in these perovskite based solar cells, research in the non-lead perovskite structures h…
The ability to fabricate dense small features over a large area is important for graphene plasmonics. We present the first self-assembled graphene plasmonic resonators operating in the mid-IR. The resonators are 35 nm in diameter with 20 nm spacing and cover a centimeter sized area. The resonators exhibit a very broad…
Porous covalent polymers are attracting increasing interest in the fields of gas adsorption, gas separation, and catalysis due to their fertile synthetic polymer chemistry, large internal surface areas, and ultrahigh hydrothermal stabilities. While precisely manipulating the porosities of porous organic materials for…
Processes of preparation of concentrated colloidal solutions of CdTe nanocrystals (NCs) stabilized by thioglycolic acid (TGA) and of subsequent sedimentation precipitation of monodisperse fractions from the initial polydisperse solutions have been studied. Spectra of optical absorption and of photoluminescence of coll…
Polycrystalline piezoelectric lead-free 85 mol% (Bi 0.5 Na 0.5 )TiO 3 –10 mol% (Bi 0.5 K 0.5 )TiO 3 –5 mol% BaTiO 3 (85BNT–10BKT–5BT) thin films were fabricated at different annealing temperatures by a chemical solution deposition method on Pt/Ti/SiO 2 /Si substrates. Perovskite phase was achieved during annealing at…
To date, focus of the research activities in nanoscience was to control the chemical vapor deposition (CVD) growth of carbon nanotubes (CNTs) by changing the precursor pressure and process temperature. The effect of the precursor flow rate and process time on CNTs growth parameters has been overlooked in past studies…
Phosphorus-doped diamond films were homoepitaxially grown by microwave plasma-enhanced chemical vapor deposition on (001)-oriented substrates with misorientation angles of 2.1°, 5.3°, 10°, 16°, and 20°. The surface morphology and phosphorus incorporation of the grown diamond films were investigated by atomic force mic…
Background:: Given the high application rate of titanium dioxide (TiO2) nanoparticles in various industries and importance of the liver in body detoxification, the present study reviewed the toxic effects of such nanoparticles on changes of hepatic enzymes and liver and lung tissues. Materials and Methods:: In this ex…
Cefuroxime axetil (CA) a pro-drug was tested as corrosion inhibitor for aluminum in hydrochloric acid solution using thermometric, gasometric weight loss and scanning electron microscope (SEM) techniques. Results obtained showed that this compound has good inhibiting properties for aluminum corrosion in acidic medium,…
ABSTRACT This study focused on the preparation of electrospun cross‐linked double‐network (DN) of agarose/polyacrylamide (PAAm) nanofibers. The agarose formed the first‐network that was physical‐linked by the agar helix bundles. After UV‐irradiation, the chemically crosslinked PAAm was formed as the second network. Th…
Nanosized yttrium orthoferrite was obtained by the heat treatment of an X-ray amorphous precursor prepared by the glycine–nitrate combustion process in orthorhombic and hexagonal phases with average crystallite sizes of 27–33 nm and 6–11 nm, respectively. The processes controlling YFeO 3 formation under the specified…
A protein (PhaX) that interacted with poly(3-hydroxybutyrate) (PHB) depolymerase PhaZa1 and with PHB granule-associated phasin protein PhaP2 was identified by two-hybrid analysis. Deletion of phaX resulted in an increase in the level of polyphosphate (polyP) granule formation and in impairment of PHB utilization in nu…
In this paper, we report the synthesis of tellurium (Te) doped ZnO nanocrystals for photocatalytic applications. X-ray diffraction, Fourier transforms infrared, photoluminescence and field emission scanning electron microscope are the techniques employed to characterize the properties of the prepared products. The pho…
ABSTRACT Thermally conductive polymer matrix composite (PMC) foams with effective thermal conductivities ( k eff ) higher than their solid counterparts have been developed for the first time. Using a material system consists of low density polyethylene and micron‐scale or submicron‐scale hexagon boron nitride platelet…
ABSTRACT Octadecylamine modified graphene oxide/styrene‐butadiene rubber (GO‐ODA/SBR) composites are prepared by a novel and environmental‐friendly method called “Improved melt compounding”. A GO‐ODA/ethanol paste mixture is prepared firstly, and then blended with SBR by melt compounding. GO‐ODA sheets are uniformly d…
ABSTRACT A novel design of wideband ultrathin, low profile metamaterial microwave absorber has been presented. The structure is composed of a periodic array of microstrip bend, like structure printed on metal backed FR4 dielectric substrate. The 10 dB absorption bandwidth from 8.60 to 12.35 GHz covering X‐band has bee…
Multiwalled carbon nanotubes (MWCNTs) and Vulcan carbon (VC) decorated with SnO2 nanoparticles were synthesized using a facile and versatile sonochemical procedure. The as-prepared nanocomposites were characterized by means of transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and F…
Background:: An increasing amount of populations all over the world are reported to have no access to clean and fresh water. Some traditional chemical disinfectants (free chlorine, chloramines, and ozone) are already widely used in the water industry; alarmingly, many of these are carcinogens. Furthermore, the resista…
OBJECTIVES: Cocrystallization of sulfadimidine (SDM) with suitable coformers, such as 4-aminosalicylic acid (4-ASA), combined with changes in the crystal habit can favourably alter its physicochemical properties. The aim of this work was to engineer SDM : 4-ASA cocrystals with different habits to investigate the effec…
We study spin relaxation in dilute magnetic semiconductors near a ferromagnetic transition, where spin fluctuations become strong. An enhancement in the scattering rate of itinerant carriers from the spin fluctuations of localized impurities leads to a change in the dominant spin relaxation mechanism from Dyakonov-Per…