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。
A CdS buffer layer is commonly used in high efficiency Cu(In,Ga)Se2 (CIGS) solar cells. The CdS layer is typically prepared by chemical bath deposition. From the viewpoint of the environmental impact of Cd and the need for in-line processing for mass production, there is a need to find an alternative to wet-chemically…
The microstructures of steels consisting of ferrite (steel 1) and bainite (steel 2) were characterised using atom probe tomography. The microstructural features, such as formation of Nb–C clusters in steel 1 fine Fe–C particles, were observed.
Problem statement: Recently, many scientists looking for new chalcogenide materials for the solar cell applications. Nowadays, silicon-based solar cell became dominant products in the market. Because of expensive silicon-based solar cells, scientists hope replaces it with cheaper chalcogenide materials. Approach: The…
Nanomaterials are used frequently in microelectronics, cosmetics and sunscreen, and research for the development of nanomaterial-based drug delivery systems is promising. We previously reported that the intravenous administration of unmodified silica particles with a diameter of 70 nm (SP70) caused hepatic injury. Her…
A simple method for the fabrication of nano-gaps less than 50 nm by using conventional photolithography combined with patterned-size reduction techniques is presented. Silicon material is used to fabricate the nano-gap structure and gold is used for the electrode. Two chrome masks are proposed to complete this work, t…
Volaschioite, ideally Fe3+4(SO4)O2(OH)6•2H2O, occurs in a small magnetite–pyrite orebody near Fornovolasco, in the Apuan Alps, Tuscany, Italy. The new mineral species is associated with pyrite and iron oxyhydroxides. In the same occurrence, other iron sulfates were identified, including alum-(K), “copiapite”, fibrofer…
SUMMARY A method for overcoming the surface tension time step constraint is presented. The algorithm presented in this work is an improvement on the work presented by Sussman and Ohta (SIAM J Sci Comput 2009). In this work, the method of Sussman and Ohta is extended in order to treat problems with contact angle dynami…
Ring oscillator (RO) structures that separate NBTI and PBTI effects are implemented in a high-k metal gate technology. The measurement results clearly show significant RO frequency degradation from PBTI as well as NBTI. For comparison, RO structures with the same principle are also implemented in a SiO2/poly-gate tech…
Variable switching process is the main issue in practical implementation of fixed band hysteresis current controller in active power filters (APF) that increases the switching frequency and switching losses in power systems. Preventing this case, the Adaptive Hysteresis Current Control (AHCC) has been introduced and d…
Precise in situ measurements of the high-frequency (f≈560 kHz) shear modulus G of Pd40Cu30Ni10P20 bulk metallic glass at heating rates 0.38≤T·≤7.5 K/min have been performed. It has been found that structural relaxation leads to an increase of G below the glass transition temperature Tg while decreasing it at T>Tg. A q…
Experimental data on arc gasification of wood residue has been presented. The potential in the use of wood residue as an energy source and the environmental aspect of wood residue application have been considered. Allothermal gasification and autothermal gasification have been compared. The effect of the initial moist…
The stress and magnetostriction induced by flux pinning for a flat superconducting strip of a type II superconductor are calculated analytically in the presence of transport current. The plane stress approach is used to find the exact solutions. By assuming that the current density is magnetic field independent, the b…
In this work, we investigate the time evolution of electrical degradation of GaN high electron mobility transistors under high voltage stress in the OFF state. We found that the gate current starts to degrade first, followed by degradation in current collapse and eventually permanent degradation in ID. We also found t…
Nb-Si system in-situ composites with nominal composition of Nb-21Ti-16Si-7Cr-3Al-2Hf (mole fraction, %) were prepared by directional solidification technology in an optical floating zone furnace at the growth rates of 3, 5, 8 and 12 mm/h. The microstructures and mechanical properties were investigated as a function of…
The type, energy, ion dose, and heating temperature required to ensure a stable minimum work function of a surface in one experimental cycle (at least 2–3 min) are determined. Secondary ion mass spectrograms are recorded using Cs + , Ba + , and Ar + ions. Cu, Al, and Mo samples are studied. The optimum ion implantatio…
Two 2D metal−organic frameworks (MOFs) of [NiL 1 ] 3 [BTC] 2 ·7H 2 O·6DMF ( 1 ) and [NiL 2 ] 3 [BTC] 2 ·H 2 O·3DMF ( 2 ) have been constructed using macrocyclic Ni(II) complexes ([NiL 1 ](ClO 4 ) 2 /[NiL 2 ](ClO 4 ) 2 ) and BTC 3- as building blocks [L 1 = 3,10-bis(4- fluorobenzyl)-1,3,5,8,10,12-hexaazacyclotetradecan…
Nowadays, solar energy is one of the most promising future energy resources in concerns to the sustenance of life on Earth and the depletion of fossil fuels. It is projected that the fossil fuel related CO 2 emissions rise from 32 to 42 billion metric tons in 2007 and 2035 (EIA., 2010)). This enormous amount of CO 2 e…
Solution processed multilayer polymer light-emitting diodes (PLEDs) based on different molecular weight host have been investigated. A PLED based on high molecular weight poly (vinyl carbazole) PVKH and low molecular weight poly (vinyl carbazole) PVKL, doped with iridium, tris(2-phenylpyidine) Ir(ppy)3 as a host-guest…
By coating a metal with a finite-thickness dielectric film, evident differences in the wave-vector magnitude between surface plasmon polaritons (SPPs) and quasicylindrical waves (quasi-CWs) emerge. This brings modulation patterns to the total field on the metal surface near the electromagnetic source. Based on such an…
A description of the technique for determining the viscoelastic properties of a polymer binder was presented. The tribological properties of the binder based on bismaleimide resin and the structure of the contacting surface of the metal-composite, as well as the wear products, were investigated.