Search results for "gallium nitride"

Small balloons made from one-atom-thick material graphene can withstand enormous pressures, much higher than those at the bottom of the deepest ocean, scientists at the University of Manchester report.This is due to graphene's incredible strength - 200 times stronger than steel.The graphene balloons routinely form when placing graphene on flat substrates and are usually considered a nuisance and therefore ignored.

The energy-storage goal of a polymer dielectric material with high energy density, high power density and excellent charge-discharge efficiency for electric and hybrid vehicle use has been achieved by a team of Penn State materials scientists. The key is a unique3Dsandwich-like structure that protects the dense electric field in the polymer/ceramic composite from dielectric breakdown. Their results are published in theProceedings of the National ...

Rice physicists are closing in on a way to create a condensed matter state in which all the electrons in a material act as one by manipulating them with light and a magnetic field. The effect made possible by a custom-built, finely tuned cavity for THz radiation shows one of the strongest light-matter coupling phenomena ever observed.The work by Rice physicist Junichiro Kono and his colleagues is described in Nature Physics.

In a tiny quantum prison, electrons behave quite differently as compared to their counterparts in free space. They can only occupy discrete energy levels, much like the electrons in an atom - for this reason, such electron prisons are often called "artificial atoms". Artificial atoms may also feature properties beyond those of conventional ones, with the potential for many applications, for example in quantum computing.

By combining expertise in photonics - manipulating light beams in nanoscale waveguides on a chip – and materials science, Cornell researchers have laid the groundwork for a chemical sensor on a chip that could be used in small portable devices to analyse samples in a lab, monitor air and water quality in the field and perhaps even detect explosives.

A nanocrystalline material that rapidly makes white light out of blue light has been developed by KAUST researchers.While Wi-Fi and Bluetooth are now well established technologies, there are several advantages gained by shortening the wavelength of the electromagnetic waves used for transmitting information.So-called visible-light communication (VLC) makes use of parts of the electromagnetic spectrum that are unregulated and is potentially more e...

Infineon has entered into a definitive agreement to acquire the Wolfspeed Power and RF division (“Wolfspeed”) of Cree. The deal also includes the related SiC wafer substrate business for power and RF power. The purchase price for this planned all-cash transaction is $850m (approximately €740m). This acquisition will enable Infineon to provide the broadest offering in compound semiconductors and will further strengthen Infineon as...

Fairview Microwave has announced a line of solid state GaN power amplifiers offering designers a unique solution of off-the-shelf components, typically requiring months of lead time to acquire.

Trapped ions are probably the most widely studied qubit technology, but they've historically required a large and complex hardware apparatus. InNature Nanotechnology, researchers from MIT and MIT Lincoln Laboratory report an important step toward practical quantum computers, with a paper describing a prototype chip that can trap ions in an electric field and, with built-in optics, direct laser light toward each of them.

What’s inside all electronic devices? The answer is rigid components like circuit boards, containing chips, resistors and capacitors - all held together with wires. Nicolette Emmino explains that things could be about to change.