Search results for "gallium nitride"

TU Wien (Vienna), KU Leuven and the University of Zürich have discovered a robust surface whose adhesive and wetting properties can be switched using electricity. This remarkable result is featured on the cover of Nature magazine. When rain falls on a lotus leaf, the leaf doesn't get wet. Thanks to its special structure, the water drops roll off without wetting the surface. Artificial materials can be made water-repellent, too. It is, howeve...

A collaborative of Russian researchers has mathematically modelled diamond-based microstructures for producing compact, high-sensitivity sensors. The study investigates the problem of selecting a useful acoustic signal taking into account the excitation of Lamb waves in promising microwave microresonators with substrates of synthetic diamonds.

Scientists in South Korea have made ultra-thin photovoltaics flexible enough to wrap around the average pencil. The bendy solar cells could power wearable electronics like fitness trackers and smart glasses. The researchers report the results in the journal Applied Physics Letters. Thin materials flex more easily than thick ones - think a piece of paper versus a cardboard shipping box.

Indoor lighting in homes and offices and public outdoor lighting account for approximately 20% of all electricity consumption in developed countries. An EU initiative developed efficient light-emitting diodes (LEDs) to address the issue. LEDs are gradually replacing fluorescent tubes in solid-state lighting solutions. They convert electric current directly into light and have very long operating lifetimes.

Scientists in Japan have successfully recorded the atomic bonds between diamond and cubic boron nitride: the hardest known materials on earth. This feat could ultimately lead to the design of new types of semiconductors.Diamond is the hardest material in existence but is useless for cutting steel because it reacts with iron, from which steel is made, at high temperatures.

A research team in Japan discovered through numerical calculations that nanoparticles of transition metal nitrides and carbides absorb sunlight very efficiently, and confirmed experimentally that nitride nanoparticles, when dispersed in water, quickly raise water temperature.

Indium Corporation's indium metal and indium alloy reclaim and recycle program earns customers an enhanced return on used materials.Indium is used extensively in thermal management, low-temperature soldering, and sealing applications and, in many instances, the indium is not fully consumed and can be reclaimed from the process.

The plasmonic laser, says Sushil Kumar, an associate professor of electrical and computer engineering, uses metal films or nanoparticles to confine light energy inside the cavity from which laser light is generated. By storing light energy inside the cavity through a combination of electron oscillations in the integrated metal films or nanoparticles, plasmonic lasers utilise surface-plasmon-polaritons (SPPs) to store energy in dimensions that can...

A new power amplifier from M/A-COM Technology Solutions is available at Richardson RFPD. The MAAP-011199 is a balanced 3-stage gallium arsenide (GaAs) pHEMT MMIC power amplifier that operates from 80 to 100GHz and typically provides +24dBm of saturated output power. The power amplifier’s balanced architecture results in excellent input and output match to 50Ω across the entire 80–100GHz frequency band, and the multi-stage design...

Graphene has emerged as one of the most promising two-dimensional crystals, but the future of electronics may include two other nanomaterials, according to a study by researchers at the University of California, Riverside and the University of Georgia. In research published in the journal Nature Nanotechnology, the researchers described the integration of three very different 2D materials to yield a simple, compact, and fast VCO device.