Materials Literature
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Anisotropy profile of a rubbed polyimide film is investigated using both a modified ultra high precision transmission ellipsometer and the analysis software previously developed to determine the optic axis distribution of discotic liquid crystals in the wide view film. The distorted sinusoidal variation of the ellipso…
Three trinuclear sandwich-type cyanide-bridged MIII–NiII complexes, {[Ni(cyclm)[Fe(bpb)(CN)2]2}·8H2O (1), {[Ni(cyclm)[Cr(bpb)(CN)2]2}·2H2O (2), and {[Ni(cyclm)[Co(bpb)(CN)2]2}·CH3OH·2H2O (3) (cyclm = 1,4,8,11-tetraazacyclotetradecane), have been synthesized using K[M(bpb)(CN)2] (M = Fe, Cr, Co; bpb = 1,2-bis(pyridine-…
It has long been taken for granted that electron transport in liquid-electrolyte-based dye-sensitized solar cells (DSSCs) undergoes an ambipolar diffusive transport due to the strong coupling between electrons in the photoanode and the nearby mobile cations in liquid electrolyte, which, therefore, screens off any elec…
In this paper a MV (medium voltage) of 11 KV XLPE (cross linked polyethylene) power cable is implemented in COMSOL MULTIPHYSICS. This software simulates the results based on FEM (Finite Element Method) in order to know the stress effects of electric field in the formation of water trees. Water voids form when there is…
This paper shows the method of improving the power quality using shunt active power filter. The proposed topic comprises of PI controller, filter hysteresis current control loop, dc link capacitor. The switching signal generation for filter is from hysteresis current controller techniques. With the all these element s…
We present a complete Raman spectroscopic study in two structurally well-defined diradical species of different lengths incorporating oligo p-phenylene vinylene bridges between two polychlorinated triphenylmethyl radical units, a disposition that allows sizeable conjugation between the two radicals through and with th…
Electron-microprobe analysis, single-crystal X-ray diffraction with an area detector, and high-resolution transmission electron microscopy show that minerals related to wagnerite, triplite and triploidite, which are monoclinic Mg, Fe and Mn phosphates with the formula Me2+ 2PO4(F,OH), constitute a modulated series bas…
Abstract This article reports on the integration of facile native oxide‐based passivation of crystalline silicon surfaces within the back amorphous‐crystalline silicon heterojunction solar cell concept. The new passivation scheme consists of 1‐nm thick native oxide and nominally 70‐nm thick PECVD silicon nitride. The…
Electron-transfer characteristics of 1,7-dipyrrolidinyl-substituted perylenediimide-fullerene (PyPDI-C 60 ) dyad were studied in solid films by an ultrafast transient absorption technique. The research was further expanded to study a poly(3-hexylthiophene) (P3HT):PyPDI-C 60 blend to reveal the charge-transfer processe…
In the present study, cogasification of straw and polyethylene was investigated in a fixed-bed gasification system. The fusion characteristics of ash during cogasification of two different kind of straw and polyethylene were investigated by AFT (Ash Fusion Test), XRD (X-ray diffraction), XRF (X-ray fluorescence), and…
We present molecular dynamics (MD) simulations of the formation of 2D materials with a honeycomb structure from 2D simple monatomic liquids with honeycomb interaction potential (Rechtsman et al 2005 Phys. Rev. Lett. 95 228301). Models are observed by cooling from the melt at various cooling rates. Thermodynamics of th…
In this study, we demonstrate that suboptical-wavelength nanostructured electrodes (NEs) improve fill factor (FF) in organic photovoltaic devices without compromising open-circuit voltage or short-circuit current. We attribute this improvement to efficient charge collection by the NEs, which reduce recombination in lo…
We have performed numerical simulations to demonstrate that the domain wall movement can be controlled introducing a distribution of magnetic impurities in a nanowire. In particular, we have considered two identical impurities equidistant from the nanowire width axis. Pinning and scattering sites for the domain wall c…
This paper presents an efficient, low power, fast-response Carbon NanoTube Field Effect Transistor (CNTFET) based comparator and shows the simulation results for the basic performance parameters for it. Due to the properties of Carbon Nanotube (CNT) the CNTFET devices show faster performance as compared to that of com…
M-type hexaferrite Sr0.65-xCaxLa0.35Fe11.32Co0.28O18.435(0 ≤ x ≤ 0.45) magnetic powder and magnets were prepared according to the solid-state reaction method. The phase compositions of the calcined powder samples were characterized by X-ray diffraction. There is a single magnetoplumbite phase in the calcined magnetic…
A new series of model dye molecules composed of three multibranched analogues based on the tetrasubstituted tetraethynylethylene structural motif have been synthesized and experimentally shown to possess strong and widely dispersed two-photon absorption (2PA) in the near-IR region. It was found that the spectral posit…
E. coli, like other organisms, responds to heat shock by rapidly up-regulating several proteins, including chaperones. The heat-shock sigma factor, sigma 32 (σ(32)), a transcription factor, plays a pivotal role in this response. The level of σ(32) is normally kept low through a DnaK/J mediated degradation. Elevated te…
Abstract This work presents a method for solving the crystal structure of an organic thin-film prepared on an isotropic surface. Combining specular X-ray diffraction and grazing incidence X-ray diffraction, a full structure solution is exemplarily derived for crystals of the molecule ternaphthalene (NNN). The data are…
BACKGROUND: Common disinfection methods like biocides, ultraviolet light and heat treatment are not efficient enough to succeed in bacterial inactivation for some microorganisms have become resistant to them. The aim of this study was to obtain information about the effect of pulsed ultrasound sonication with 30 kHz f…
Carbon nanotubes are due to their outstanding mechanical properties destined for a wide range of possible applications. Since the knowledge of the material behavior is vital regarding the possible applications, experimental and theoretical studies have been conducted to investigate the properties of this promising mat…