Materials Literature
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Abstract π-Extension of tetrathiafulvalene by hybridization with an indacenetetraone leads to an electron acceptor that can harvest visible light efficiently and serve as an electron-transport material for poly(3-hexylthiophene)-based bulk-heterojunction photovoltaics, where brief thermal annealing of the active layer…
Abstract A stable colloidal sol consisting of CeO2–ZrO2 solid solution (CZ) was studied as an efficient modifier for supported Rh catalysts. After coating CZ sol onto Al2O3 by simple impregnation, the catalytic activity for CO–NO–C3H6–O2 reaction increased to a different extent depending on an air-to-fuel weight ratio…
A Poisson-Boltzmann equation solution is used to determine the thickness of a thin fluid lubricating layer predicted to separate two polyelectrolyte hydrogels in contact for arbitrary salt concentration as a function of applied load and fixed charge and salt concentration. We consider loads ranging from 1 Pa, at which…
Optical, spectral, and thermal characteristics of InGaN/GaN multiple quantum well green light-emitting diodes (LEDs) with a large chip size of 0.8 × 1 mm2, operating at λ ∼ 525 nm, on patterned sapphire substrate (PSS) were studied. The temperature-dependent optical and spectral properties of LEDs were measured and an…
We study the thermodynamics of bromophenyl functionalization of carbon nanotubes with respect to diameter and metallic/insulating character using density-functional theory (DFT). On the one hand, we show that the functionalization of metallic nanotubes is thermodynamically favoured over that of semiconducting ones, in…
CBs News: Hierarchically self-assembled dendron nanotubes with a cucurbituril (CB) unit on the surface were constructed through self-assembly of CBs and an amide dendron with a focal pyene moiety. In addition, the self-assembled dendron–CB nanotubes were reversibly transformed into a vesicular architecture by removal…
Fluorescent silica nanotubes are attracting increasing interest because of their versatile applicability in a range of diverse fields. By using sol-gel transcription of tetraethylorthosilicate (TEOS) from various soft templates, silica nanotubes can be conveniently prepared. Metal-peptide hybrids with well-defined nan…
This paper summarizes the experimental investigations on a small-scale air-core high-temperature superconducting (HTS) transformer operated in liquid nitrogen. The designed HTS transformer is being used as part of a current pulsed-power supply. First, the HTS winding was tested to experience a short overcurrent pulse.…
The thermodynamic scaling of molecular dynamic properties of rotation and thermodynamic parameters in a nematic phase was investigated by a molecular dynamic simulation using the Gay-Berne potential. A master curve for the relaxation time of flip-flop motion was obtained using thermodynamic scaling, and the dynamic pr…
Indium oxide shows an unusual combination of electrical and optical properties that give rise to a broad range of applications in optoelectronic devices. Here, we report results of structural, x–ray photoelectron spectroscopy, and electrical transport studies of transparent homo-junctions, obtained by sequential growt…
Composition, microstructure, and dielectric properties of undoped and Ba(Mg1/3Nb2/3)O3 (BMN) doped Ba0.45Sr0.55TiO3 (BST) thin films deposited via rf. magnetron sputtering on platinized alumina substrates have been investigated. The analysis of microstructure has shown that despite the sizable effect of doping on the…
The effect of nano cupric oxide (CuO) in combination with surfactants on the curing characteristics of phenol formaldehyde (PF) resin analyzed using solid 13C CP/MAS NMR, including the bonding strength of plywood prepared by modified resin, was investigated in this study. The results showed that nano CuO alone improve…
This study is focused on the sensitivity of ultra‐sonic test (UT) performed on special carbon steel as a function of their microstructure. UTs was carried out on several samples divided into two families and featured by different process‐histories. The estimation of the attenuation of the ultrasonic signals as a funct…
A facile and effective synthesis of N‐vinylpyrroles had been explored. The synthetic approach was practicable for preparation of N‐vinylpyrroles for the mild reaction conditions and readily available materials, compared with previously inaccessible N‐vinylpyrroles with electron‐withdrawing groups, especially these pyr…
The silica nanoparticles functionalized with poly(butyl acrylate‐co‐glycidyl methacrylate)‐g‐diaminodiphenyl sulfone (P(BA‐co‐GMA)‐g‐DDS)) were prepared via atom transfer radical polymerization and ring open reaction, and characterized by Fourier transform infrared and X‐ray photoelectron spectroscopy. Subsequently, t…
Failure modes of concrete structures due to blast load vary according to the point of detonation, stand-off distance and TNT charge weight. Usually, columns are the key load-bearing elements in concrete frame structures. They are typically weak, not to long-distance explosive loadings, but to short-distance loadings.…
Ketoprofen coated tripolyphosphate modified chitosan nanoparticle was resulted from ionic gelation process by ultrasonication, centrifugation, and spray dry methods. Particle was analyzed by particle Size Analyzer. Dissolution and stability of them have conducted by Row Hansen methods at 37±0.5 °C and 150 rpm and usin…
Nanostructured graphene supported LiMn1/3Ni1/3Co1/3O2 has been prepared by the co-precipitation method and used as the cathode material for lithium-ion batteries. The structure and morphology of the composite were examined using atomic force microscopy, scanning electron microscopy, high-resolution transmission electr…
We study the long-range spatial correlations in the nonequilibrium steady state of a randomly driven granular fluid with the emphasis on obtaining the explicit form of the static structure factors. The presence of immobile particles immersed in such a fluidized bed of fine particles leads to the confinement of the flu…
Abstract To examine the versatility of the trans-bisglycoconjugation architecture for 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin (TFPP) derivative-based photodynamic therapy (PDT), 25 porphyrin derivatives bearing d-glucopyranose moieties were prepared, and their in vitro photocytotoxicities were examined. trans-…