Materials Literature
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This paper reports a selective growth method for growing crack-free semi-polar (1-101) GaN on V-grooved 7°-off (001) Si substrates by using a reticular SiO 2 mask. This method effectively reduces the effect of thermal stress on GaN so that crack-free (1-101) GaN films as thick as 1 μm are obtained after coalescence of…
First measurements on a combined instrument with a thin fibre optic Raman probe mounted inside a hollow tactile resonance sensor have been performed in ambient light on porcine tissue. The ambient fluorescent light was removed successfully from the spectra. The stiffness and the biomolecular composition of the tissue…
Graphene nanoflakes in different weight percentages were added to polyurethane top coatings, and the coatings were evaluated relative to exposure to two different experimental conditions: one a QUV accelerated weathering cabinet, while the other a corrosion test carried out in a salt spray chamber. After the exposure…
The influence of annealing of Gd5Ge2Si2Fex alloys at 1200°C and of alloying with various amount of iron on structure as well as thermal and magnetocaloric properties is investigated. It was found that annealing for 1 to 10 hours improves the entropy change, but reduces the temperature of maximum magnetocaloric effect…
A co mparative study between conventional annealing (CA) and rap id transformation annealing (RTA) of cold-rolled, lo w-carbon (microalloyed) steel having different starting microstructures showed that fine-ferrite grain sizes (4-6 m) with hard-phases such as, martensite and bainite in RTA treated samples offered muc…
Thermoelectric transport properties of Te-substituted In4Se3 compounds are presented in terms of the condenson state. Regardless of anionic substitution, the condenson-related charge and thermal transport properties were clearly observed in the anionic substituted In4(Se0.95Te0.05)3−δ compound, and the enhanced thermo…
High resolution scanning transmission electron microscopy with an aberration corrected and monochromated instrument has been used for the assessment of the silicon-based active layer stack for novel optoelectronic devices. This layer contains a multilayer structure consisting of alternate thin layers of pure silica (S…
Monolithic nitrocellulose and cellulose composites (NC-C) were obtained by cross-linking a mixture of nitrocellulose with cellulose using hexamethylene diisocyanate (HDI). They were incorporated into a model reactive armour. An X-ray technique was used to examine the influence of the cellulose content on the accelerat…
Over the past several years, there has been increasing research and clinical interest in using nanotechnology for cancer therapy. Nanoparticle provides tremendous potential for future medical therapy. Besides targeting cancer cells, delivering and releasing drugs in a regulated manner, the specificity of nanoparticles…
Abstract—There has been a surge of interest in the subwavelength confinement effects of the electromagnetic fields. Based on these effects, one can obtain new behaviors of the near- and far-field radiation. It is well known that in optics, the subwavelength confinement can be obtained due to surface-plasmon (or electr…
Nitrogen and Phosphorus co-doped (N+P)- zinc oxide (ZnO) films were RF sputtered on corning glass substrates at 350 °C and comparatively studied with undoped, N-, and P- doped ZnO. X-ray diffraction spectra confirmed that the ZnO structure with a preferred orientation along direction. Scanning electron microscope anal…
Design of new metamaterial (MTM) traveling-wave antenna with “d-formed” left-handed structure is proposed. The proposed MTM structure is designed at a height of 0.8 mm from the ground plane with almost 2 GHz bandwidth. The most interesting feature of the design is the ability of enhancing the gain and total efficiency…
A novel electrocatalyst system with unique multifunctional characteristics, originated by the presence of a proton conducting polybenzimidazole (PBI-BuI) bound layer and electron conducting hollow carbon nanofibers (CNF) with catalytically active Pt nanoparticles, has been devised based on a simple strategy. This was…
We are pleased to present a Focus Issue of the ECS Journal of Solid State Science and Technology (JSS) on nanocarbons for energy harvesting and storage. Fullerenes, carbon nanotubes and graphene have taken a solid place in modern science and technology, as demonstrated by the awarding of two Nobel Prizes – the first,…
The results of laboratory investigations on the influence of Steel Mill Scale on the strength characteristics of tropical black cotton clay soils are presented. Tropical Black Cotton clay soils were mixed with Steel Mill Scale at 0%, 5%, 10%, 15%, 20% and 30% Steel Mill Scale content (by dry weight of soil) in order t…
The most successful attempts for preparing transparent magnesium aluminium spinel ceramics have been conducted with using hot isostatic pressing (HIP). In this paper a list of tips and tricks useful for manufacturing bulk transparent HIPed spinel ceramics is presented. The step by step subroutine from starting materia…
With the advent of genomic and proteomic research from bacteria to man an unprecedented data generated are pertinently analyzed and managed by the evolving science - bioinformatics. In scientific research, Bombyx mori L. is considered as a model insect for molecular studies along with the fruit fly (Drosophila melanog…
The influence of ambient air on hole mobility in thin polydiphenylenephthalide films has been studied. The current-voltage characteristics of samples of diode configuration with unipolar conductivity have been measured in air and inert atmosphere with controllable oxygen and water. It has been shown that the hole mobi…
A continuous gas-phase approach has been developed to prepare tin oxide (SnOx)–reduced graphene oxide (rGO) hybrid nanoflakes via a single-pass process. According to the TEM analysis, the SnOx particles are only distributed on the rGO particles from the gas-phase process. The hybrid particles obtained have a theoretic…
Solid gel-films and volume gel-matrices on the basis of silica materials doped with palladium porphyrinate, lutetium and gadolinium tetraphenylporphyrinates were prepared. Spectral-luminescent, sensing properties to molecular oxygen and effect of the gas environment were studied. Nanoporous silicate gel-materials dope…