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。
Semiconductor Quantum Dots (QDs) currently receive widespread attention for the development of photovoltaic devices due to the possibility of tailoring their optoelectronic properties by the control of size and composition. Here we show that it is possible to design both injection and recombination in QD sensitized so…
Solid-state nanocrystalline solar cells composed of chemical-bath-deposited Sb 2 S 3 (antimony sulfide) as a light-absorber layer deposited on nanoporous TiO 2 and spiro-MeOTAD as an organic hole-transporting material yielded a solar conversion efficiency of 5.2% at 0.1 sun illumination and a peak 88% of the incident…
Graphene oxide (GO) is a promising precursor for preparing graphene-based composites and electronics applications. Like graphene, GO is essentially one-atom thick but can be as wide as tens of micrometers, resulting in a unique type of material building block, characterized by two very different length scales. Due to…
Small organic molecules, capable of undergoing efficient and reversible photochemical reactions to switch them between (at least) two (meta)stable isomers associated with markedly different properties, continue to impact the materials world. Such photoswitches are being implemented in a variety of materials for applic…
Abstract A biodegradable polyester, poly(tetramethylene dodecanedioate), was injection molded in a rectangular cavity. Thin sections were sliced from molded samples starting from the skin. The morphology distribution inside the molded samples was studied by X‐ray analysis. The diffusion and solubility coefficient of w…
Precipitates that form as a result of phase transformation are studied with regard to mechanical behaviour and initiation of internal cracks. The focus is on precipitates occupying a larger volume than the surrounding matrix. Further the study is restricted to precipitates growing by incorporating material transformed…
A device has been invented for protein crystallization by sandwiching the liquid droplet between two surfaces, in which both hydrophilic and hydrophobic surfaces can be used as crystallization substrates. Comparing with the traditional hanging drop method, it can also reduce the evaporation rate of the liquid droplet…
Solvent-induced crystallization and dewetting behaviors of polystyrene-b-poly (ethylene oxide)-b-polystyrene (PS-b-PEO-b-PS) block copolymer films deposited on three different substrates, silicon, mica, and carbon-coated mica have been studied by atomic force microscope (AFM). When the common solvent dichloromethane w…
Abstract High quality poly( p ‐phenylene) (PPP) film with conductivity of 0.015 S cm −1 was synthesized electrochemically by direct anodic oxidation of p ‐terphenyl (PP) oligomers in boron trifluoride diethyl etherate (BFEE) containing 37.5% CH 2 Cl 2 (v/v). The oxidation onset potential of PP in this medium was measu…
A novel set of light-responsive polyelectrolytes has been developed and studied, to control and tune surface wettability by introducing various types of substituted R head-groups of azo polyelectrolytes in self-assembled multilayer (SAMU) films. As part of a larger project to develop polymer surfaces where one can exe…
Defect structures in the Li−Mg−N system can be tuned by control of composition and temperature. A series of compounds in the Li 3 N−Mg 3 N 2 system have been synthesized via solid state reaction of the binary nitrides. The resulting ternary nitrides have been structurally characterized by variable temperature powder n…
Abstract Hydrophilic monomer, 2‐hydroxyethyl methacrylate (HEMA), and hydrophobic monomer, 3‐(methacryloyloxy)propyltris(trimethylsiloxy)silane (MPTS) were grafted on vulcanized rubber surface with simultaneous electron beam irradiation. Degree of graft polymerization was evaluated by composition ratio of imparted gra…
Abstract Surface Enhanced Raman Spectroscopy (SERS) is a widely used spectroscopic method that can dramatically increase the sensitivity of Raman spectroscopy and has demonstrated significant benefit in the identification of biological molecules. We report the use of SERS in differentiating the bound immunocomplex of…
Hybrid composites of conducting polypyrrole nanotubes with TiO2 nanoparticles were synthesized in the presence of β-naphthalenesulfonic acid by chemical oxidative polymerization. The morphology, structure, and electrical properties were investigated by several experimental techniques. The results indicated that the st…
This research report is about the effect of non-thermal plasma (NTP) on particulate matter (PM) and on the physical and chemical characteristics of rice bran biodiesel (RBD) fuel engines. First, the RBD fuel was successfully prepared by the transesterification method. The main components of the RBD fuel were detected…
Abstract The research focused on the PA66/PC/silicone rubber composites. By adding silicone rubber as a toughener, the composites were prepared via dynamic vulcanization. The morphology and properties of the composites were characterized by FTIR, TEM, SEM, XRD, etc. The FTIR spectrum of the composites presented an inc…
In this paper, new thermally stable isomeric unsubstituted polyesteramides have been successfully prepared by condensation of aromatic acids chlorides namely; isophthaloyl, pyridine-3,5-dicarbonyl and pyridine-2,6-pyridine-dicarbonyl dichlorides with the aminophenol isomers in NMP. Conducting the reaction in NMP/H2O (…
Abstract The polymer, Hydrogenated Nitrile‐Butadiene Rubber (HNBR) was melt compounded with organophilic montmorillonite (OMMT). The dispersion of the OMMT in the HNBR matrix was characterized by X‐ray diffraction (XRD), which indicated that at the temperature of 100°C, the organoclay belong to the exfoliated and inte…
The behavior of strain, magnetization, and resistivity of a nanoporous ${\text{Au}}_{0.55}{\text{Fe}}_{0.45}$ alloy was studied in situ during electrochemically induced charge variations on the surface of the alloy. The length of the sample varied reversibly over several cycles of charging and decharging and a maximum…
Abstract Macroporous poly(vinyl alcohol) foam with epichlorohydrin as a crosslinking agent was investigated. The average molecular weight between crosslinks, crosslinking density, and mesh size were determined through the equilibrium swelling theory. The characterization of foams with different crosslinking ratios was…