Materials Literature
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In this study, an optical simulation of Cu(In,Ga)Se2 (CIGS) solar cells by the rigorous coupled-wave analysis (RCWA) method is carried out to investigate the effects of surface morphology on the light absorption and power conversion efficiencies. Various sub-wavelength grating (SWG) nanostructures of periodic ZnO:Al (…
Dye sensitized solar cells (DSSC) are photoelectrochemical solar cells. They are based upon an iodide tri-iodide redox couple mediated between a photosensitive electrodes of semiconductor materials stained with a photosensitive dye and a catalytic counter electrode. In the present investigation, ZnO compact layer was…
Our study on Sm1/2Ca1/2−xSrxMnO3 (x = 0, 1/6, 1/3, and 1/2) system shows an unusual consequence in magnetic field-induced transition to ferromagnetic metallic state and collapse of charge ordering in the intermediate compositions. Interestingly, the transition is sharp or step-like at low temperature that is observed…
LDPE is widely used as an insulating material for power cable. In order to clarify the conduction mechanism of LDPE under ac high field, the simultaneous observation of the dissipation current waveform and electroluminescence (EL) is carried out. As the results of experiments, it was found that when the EL was observe…
We describe work in which gold nanoparticles were formed in diamond-like carbon (DLC), thereby generating a Au-DLC nanocomposite. A high-quality, hydrogen-free DLC thin film was formed by filtered vacuum arc plasma deposition, into which gold nanoparticles were introduced using two different methods. The first method…
ZnMgO thin films deposited on Si (111) substrates by pulsed laser deposition at 300°C were annealed at different temperatures from 400 to 800°C in air. Non-polar films with (110) orientation have been obtained. The thin film annealed at 500°C shows the co-existence of (002), (200) and (110) orientations according to X…
Based on density functional theory, the mechanisms for oxygen-driven unzipping of carbon nanotubes under electric field are presented. Under the control of external electric field, O adatoms will diffuse along the single-walled carbon nanotube from low potential to the high potential sites. The energy barrier of O ada…
In this paper, we report the enhanced performance of Graphene-Nafion-GOD based enzymatic biosensors to detection glucose used fast, simple, and easy to control fabrication method. These materials are prepared by mixing graphene, a Nafion perfluorinated resin, and glucose oxidase (GOD) in appropriate amounts. The graph…
Continued demands for better control of the operating conditions used in human motion tracking and medical applications have led to the need for better means of detecting different types of proprioceptive activity pattern. One way to satisfy this need is to use MEMS technology to develop a sensor which can be used lat…
Abstract To describe the rich phenomena in dilute dispersions of highly charged colloidal particles, it is necessary to modify the long-range electric part of the DLVO potential. The screened Coulombic potential of pure repulsion obtained from the Helmholtz free energy in the DLVO theory is replaced by a new screened…
A novel DC through hole filling process was formulated for high volume HDI and substrate core layer metallization production. The process yields high quality results over a wide current density range.
This paper reports the synthesis and self-assembling properties of 6-O-hexadecyl- and 6-O-octylsucroses. Mono-etherification of 2,3,4,1′,3′,4′-hexa-O-benzylsucrose with the corresponding alkyl bromides predominantly took place at the glucose 6-position and the products were isolated by silica gel column chromatography…
Abstract The shape of droplets placed on a microstructured pillar surface is investigated by laser scanning confocal microscopy, LSCM. The microstructure consists of cylindrical pillars arranged in a square lattice. Using LSCM the three-dimensional shape of drops and the contact angle are imaged above and between neig…
A simple dielectric barrier discharge (DBD) jet array was designed with a liquid electrode and helium gas. The characteristics of the jet array discharge and the preliminary polymerization with acrylic acid (AA) monomer were presented. The plasma reactor can produce a cold jet array with a gas temperature lower than 3…
According to miniaturization, estimation of motor temperature is necessary, and many approaches are developed. In this paper, temperature estimation of interior magnet synchronous motor (IPMSM) is conducted. Heat source of the IPMSM considering core losses of rotor and eddy current loss of PM is applied the thermal eq…
Bearing steel cleanliness is of primary importance due to potential failures caused by rolling contact fatigue (RCF). Bulk material ultrasonic scanning provides a method of assessing steel quality and cleanliness, but is lacking in the area of primary interest: the near-surface region which is subject to RCF in bearin…
We examine quality factor and sensitivity change depending on the resonant wavelength changing refractive index of surrounding liquid for TiO2 photonic crystal slab structure. Photonic crystal slab structure is used widely for biological materials such as proteins, antigens, DNA, cells, virus particles and bacteria. M…
SnO 2 thin films were successfully electrodeposited from an aqueous oxygen-bubbled tin sulfate solution and partnered with electrodeposited SnS thin films to fabricate SnS/SnO 2 heterojunction solar cell. The electrodeposited SnS/SnO 2 superstrate structure with 250-°C-annealed SnO 2 as a window layer exhibited an ope…
The output energy estimation of photovoltaic (PV) modules was carried out using contour maps as a function of average photon energy (APE), which is an index of solar spectral irradiance and module temperature ( T mod ) in our previous report. This method is useful for not only crystalline Si PV modules but also thin f…
The effects of bismuth (Bi) incorporation into Cu(In 1- x ,Ga x )Se 2 (CIGS) thin films and solar cells have been investigated. 10–50-nm-thick Bi thin layers were deposited onto Mo-coated soda-lime glass (SLG) and SiO x -coated SLG substrates by vacuum evaporation. CIGS thin films were then deposited by a three-stage…