Materials Literature
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We report a highly efficient GaN-based blue light-emitting diodes (LEDs) structure with an emitting wavelength of 450nm on flat sapphire substrate by utilizing a nano-porous (NP) GaN insertion layer. Unlike the LED on patterned sapphire substrates (PSS), the presented substrate has a new morphology which not only can…
Single-walled carbon nanotubes are used as doping agents to form thermo-active composites with an elastomeric block-copolymer. Thermal imaging reveals that the temperature response upon irradiation with NIR laser light is dependent (among other things) on the mass fraction of the nanotubes in the polymer matrix.
Gold nanorods exhibit intense optical absorbance in the near-infrared region of principal interest for applications in biomedical optics, which evokes their use to improve contrast in photoacoustic imaging and selective photothermolysis of cancer. However their limited photostability remains a drawback of practical co…
The dielectric dynamic susceptibility of a particle is studied numerically using the exact susceptibility expression in other to understand particle physical properties. There exist one peak in the imaginary part and two peaks in the real part of the susceptibility. Constant behavior of peaks width and height is found…
We demonstrate the possibility of fabrication of InGaN laser diode with an extremely thin lower AlGaN cladding (200 nm) by using high electron concentration, plasmonic GaN substrate. The plasmonic substrates were fabricated by one of high-pressure methods – ammonothermal method or multi-feed-seed growth method and hav…
Self-assembled GaN nanowires (NWs) currently are a subject of sustained interest in the scientific community motivated by both their potential applications for new LEDs, which should take benefit of the improved crystalline quality of those nano-objects, due to a strongly reduced defects density. In addition, interest…
A facile and environmentally route for catalytic Synthesis of 2-( N -benzyl- N -phenylamino) phenol under UV irradiation conditions has been developed in the presence of a catalytic amount of mesoporous Pd-doped TiO 2 (Pd/TiO 2 ) based on a ionic liquid process to fabricate. The particles were characterized with XRD,…
A silver nanowire network electrode (NNE) is designed and made inexpensively on the surface of textured silicon by J. W. Gao, Y. Wang, and co-workers on page 733. The NNE is formed by depositing and sintering silver nanoparticles on the textured silicon surface. The scanning electron microscope images show that the NN…
Illustrated descriptions of the larvae of the water mite species of Lebertia longiseta Bader, 1955, Oxus nodigerus Koenike, 1898 and redescription of the larva L. dubia (Thor, 1899) are presented.
Abstract In this paper, two relevant problems are investigated. First, the residual stresses within glass-coated amorphous ferromagnetic microwires (AFMWs) subjected to thermal expansion mismatch and magnetostriction effect are analyzed using the finite element method; the effects of various design parameters (e.g., t…
The concept of the remote phosphor is proven to be one of the effective solutions for improving luminous efficacy of pc-WLEDs by solving the problem of phosphor thermal and scattering loss. However, most of them need to use larger packaging design to enhance their performance. Such development is adverse to market tre…
Laser speckle interferometry is used to detect micro-structure and its dynamic behavior of a sample surface by the statistical analysis of its laser speckle images. In this paper, the methodology of laser speckling and statistical analysis are studied with the aims to develop a non-contact, non-destructive surface sen…
Triblock copoylmers with associative protein midblocks and thermoresponsive endblocks form shear thinning hydrogels that can be injected at low temperature. On page 1182, Bradley D. Olsen and co-workers report that when warmed to body temperature, the gel is responsively reinforced as the endblocks self-assemble into…
Color tunable wide gamut light covering the greenish, yellow-green, yellow, orange, and reddish tone chromaticity region in europium/erbium co-doped lead-cadmium-germanate PbGeO3:PbF2:CdF2 glass phosphor is presented. The phosphors were synthesized, and their light emission properties examined under UV/blue light-emit…
The nanocrystalline anatase-TiO2, a well-known photocatalyst, has been synthesized via the conventional sol-gel method involving an alkoxide-precursor. The nanocrystalline anatase-TiO2 has also been processed via the modified sol-gel technique involving the phosphoric acid (H3PO4) as an acid-catalyst. The different sa…
Thermoplastic rubbers are widely used in a large number of applications (e.g. footwear, adhesives manufacturing, molded or extruded goods). Due to the non-polar nature of these rubbers, poor adhesion is achieved with polar polyurethane (PU) adhesive thus, a surface treatment is required to chemically modify the rubber…
Surface treatment of polyolefines by atmospheric-pressure dielectric barrier discharges (DBDs) in virtually oxygen-free nitrogen-containing gases was studied in situ byFourier transform infrared spectroscopy in the attenuated total reflection mode (FTIR-ATR)in order to follow the plasma-chemical generation of chemical…
Standardised conventional adhesion tests are time-consuming single-sample tests. Moreover, except for the pull-off test, all these tests provide only qualitative or semi-quantitative (ranking, respectively measurement of an adhesion-correlated quantity) information on adhesion. Sometimes, adhesion is evaluated even un…
Heparin is an appropriate molecule to suppress the thrombus formation in the initial stages of blood contact with an artificial material. Therefore the covering of a synthetic material with heparin-like molecules is a great importance issue in biomaterial science and engineering. In order to reach this goal this paper…
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