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。
We study the effect of the variation of energy gap on the electronic structure of PbTe and SnTe, using a six-level basis at the L point. The basis functions in both the systems have the same transformation properties. However, the basis functions of the band edge states in SnTe are reversed with respect to the same in…
Two series of new redox-active aromatic polyimides with methyl- (–CH 3 ) or trifluoromethyl (–CF 3 )-protecting triphenylamine moieties were prepared from 4,4′-diamino-4″-methyltriphenylamine and 4,4′-diamino-4″-(trifluoromethyl)triphenylamine with aromatic tetracarboxylic dianhydrides via the conventional two-step po…
Multilayer piezoelectric ceramic material with a composition of 0.1Pb(Ni 1/3 Nb 2/3 )O 3 ‐0.35Pb(Zn 1/3 Nb 2/3 )O 3 ‐0.15Pb(Mg 1/3 Nb 2/3 )O 3 ‐0.1PbZrO 3 ‐0.3PbTiO 3 ‐4 mol% excess NiO (0.1 PNN ‐0.35 PZN ‐0.15 PMN ‐0.10 PZ ‐0.3 PT ‐0.04NiO) was fabricated by a roll‐to‐roll tape casting process and co‐fired with Ag/Pd…
Small, red Fe2 SeO single crystals in two modifications were obtained from a CsCl flux. The metastable α-phase is pseudo-tetragonal (Cmce, a=16.4492(8) Å, b=11.1392(4) Å, c=11.1392(4) Å), whereas the β-phase is trigonal (P31 , a=9.8349(4) Å, c=6.9591(4) Å)) and thermodynamically stable within a narrow temperature rang…
A conducting copolymer of 1,1′-ferrocenediacyl anilide and aniline (P(FcA-co-ANI)) was synthesized, which had a conjugated structure and ferrocene moieties in the main chain. The monomer and copolymer were characterized using proton nuclear magnetic resonance and Fourier-transform infrared (FTIR) spectroscopies. A P(F…
The elaboration of organic–inorganic nanohybrid compounds has demonstrated substantial attentiveness owing to an inclusive extent of potential applications in optoelectronic devices. Here, we report about the synthesis of novel hybrid compound based on polyaniline/ZnSe nanocomposites. The ZnSe nanoparticles are prepar…
BACKGROUND: Cancer is one of the major leading causes of death worldwide and its prevalence will be higher in the coming years due to the progressive aging of the population. The development of nanocarriers in oncology has provided a new hope in the fight against this terrible disease. OBJECTIVE: Among the different t…
Thin films of Ta-doped ZnO were synthesised via sol–gel spin coating route. The structural and optical properties of the films were evaluated to find out the effect of Ta dopant content. X-ray diffraction results indicated that all samples have hexagonal wurtzite crystal structure with polycrystalline nature. (0 0 2)…
The functionalization of polyfluorene (PFO) nanoparticles by coprecipitation of the conjugated polymer with an amphiphilic comb polymer, consisting of a hydrophobic polystyrene backbone with hydrophilic, carboxylic acid-terminated polyethylene oxide side-chains (PS-PEG-COOH), is investigated. The comb polymer affects…
Pollution control has become increasingly important in recent years. Heavy metal ions, proteins, and dyes are frequently found in wastewater because of their extensive industrial applications. In this study, pH, temperature, and magnetic triple‐responsive poly( N ‐isopropylacrylamide‐ co ‐methacrylic acid) porous micr…
Silicon nanocrystals (Si NCs) embedded in a dielectric matrix is regarded as one of the most promising materials for the third generation photovoltaics, owing to their tunable bandgap that allows fabrication of optimized tandem devices. Previous work has demonstrated fabrication of Si NCs based tandem solar cells by s…
The effects of lithium doping on the sintering and grain growth of non-stoichiometric nano-sized magnesium aluminate spinel were studied using a spark plasma sintering (SPS) apparatus. Li-doped nano-MgO·nAl2O3 spinel (n = 1.06 and 1.21) powders containing 0, 0.20, 0.50 or 1.00 at. % Li were synthesized by the solution…
A form of damage in bearing steels subjected to rolling contact fatigue is the formation of localised regions of white material just below the contact surface. These ‘white-etching regions’ are strikingly visible signs of damage during metallographic examination. One mechanism proposed to explain their formation is ad…
This paper provides a concise review of recent advances in activated carbon (AC) and its corresponding modified material. Topics covered in this work include the synthesis and characterization of AC as the feedstock materials, as well as the properties and applications of the subsequent hybrid material for different i…
This study investigates the improvement of the interface between bamboo fibers (BF) and a bio‐based epoxy polymer by coating the surface of BF with nanoparticles. Unidirectional BF bundles were dip‐coated with three different types of coating: bio‐based epoxy, bio‐based epoxy containing silanized silica fume, and bio‐…
Metallic and semiconducting fractions of single‐walled carbon nanotubes (SWCNTs) sorted by an aqueous two‐phase extraction technique and integrated into thin films were used to produce CuCl@SWCNT hybrid material via a gas phase filling the nanotubes with CuCl. As a result of doping, the SWCNTs in the hybrid material p…
In this study, multi-walled carbon nanotubes (MWCNTs) were incorporated into poly (ethylene terephthalate) (PET) matrix in their as-received (A-MWCNTs) and treated (T-MWCNTs) forms. Melt-compounding method was used for the preparation of these carbon nanotubes (CNTs)-reinforced PET composites. The electrical conductiv…
Boron‐doped diamond (BDD) has gained increasing importance as transparent electrode material in spectroelectrochemistry due to its broad spectral window ranging from the near UV to the far‐infrared regime. However, spectroelectrochemistry in the mid infrared (IR) region may suffer from low signal intensity in particul…
We report calculations with first‐principles density‐functional theory and Landau–Devonshire theory that provide an atomic‐scale mechanism for the composition‐ and pressure‐induced relaxor ferroelectrics. A multiphase with coexisted cubic structures ( MPCCS ) is found to correspond to any of the composition‐ and press…
Abstract The antifogging polyglycerol fatty acid esters (PGFE)/polyethylene (PE) film with polyethylene wax emulsions (WE1) as a dispersant was fabricated using twin‐screw extruder and then extrusion blow molding. The study was conducted to investigate the influence that different levels of PGFE on the antifogging per…