Sentences with phrase «nitride material»

«Hydrogen from sunlight — but as a dark reaction: Generation, storage, and time - delayed release of electrons in graphitic carbon nitride material for artificial photosynthesis.»

Not exact matches

NexGen plans to make semiconductor power devices from gallium nitride, the same material that Soraa uses to make LED lighting.

Gallium nitride is a more efficient semiconductor material than silicon, creating the potential to make electronic devices that are smaller, lighter and more efficient, Ramanathan said.

Now, the M.D. Anderson Chair Professor and mechanical engineering department chairman at the University of Houston Cullen College of Engineering, Pradeep Sharma, and his doctoral student, Matthew Zelisko, in collaboration with scientists at Rice University and University of Washington, have identified one of the thinnest possible piezoelectric materials on the planet — graphene nitride.

The material he chose to work with, gallium nitride, had a well - deserved reputation as one of the most difficult of semiconductor materials.

Here, the scientists used the new HERMES instrument to measure the temperature of semiconducting hexagonal boron nitride by directly observing the atomic vibrations that correspond to heat in the material.

The scientists first grew carpets of microscopic wires of gallium nitride, a light - emitting crystalline material, on an ultrathin mesh of graphene, which is a layer of carbon atoms that is flexible, conductive and tough.

Rice University materials scientists have created a light foam from two - dimensional sheets of hexagonal - boron nitride (h - BN) that absorbs carbon dioxide.

Nanowires for LEDs are made up of an inner core of gallium nitride (GaN) and a layer of indium - gallium - nitride (InGaN) on the outside, both of which are semiconducting materials.

The new material developed by Schnick, Schmidt and their colleagues is based on the nitride Sr [LiAl3N4].

U.S. Naval Research Laboratory (NRL) scientists, in collaboration with researchers from the University of Manchester, U.K.; Imperial College, London; University of California San Diego; and the National Institute of Material Science (NIMS), Japan, have demonstrated that confined surface phonon polaritons within hexagonal boron nitride (hBN) exhibit unique metamaterial properties that enable novel nanoscale optical devices for use in optical communications, super-resolution imaging, and improved infrared cameras and detectors.

The material linking all three systems is an elastic membrane of silicon nitride.

Scientists funded by the NSF are working to synthesize, characterize and functionalize boron nitride nanotubes and boron nitride nanoribbons to create new electronic and optical materials with tunable properties.

And these principles apply not just to graphene but also to other two - dimensional materials, such as molybdenum disulfide, boron nitride, or other single - atom or single - molecule - thick materials.

They plan to draw from the full suite of available 2D layered materials, including graphene, boron nitride, transition metal dichalcogenides (TMDCs), transition metal oxides (TMOs), and topological insulators (TIs).

Hexagonal boron nitride is a wide band - gap material with high mechanical strength.

With a large band - gap material like boron nitride, it does a good job despite small microstructural features that might not be ideal.»

«Prior to this work we had developed a composite of boron nitride nanosheets and dielectric polymers, but realized there were significant problems with scaling that material up economically.»

But how does it behave in contact with another material with a similar structure, such as boron nitride?

They found it to be much better than nanofluids that contain higher amounts of oxide, nitride or carbide ceramics, metals, semiconductors, carbon nanotubes and other composite materials.

Electrical current is injected into the device, tunnelling from single - layer graphene, through few - layer boron nitride acting as a tunnel barrier, and into the mono - or bi-layer TMD material, such as tungsten diselenide (WSe2), where electrons recombine with holes to emit single photons.

Constructed of layers of atomically thin materials, including transition metal dichalcogenides (TMDs), graphene, and boron nitride, the ultra-thin LEDs showing all - electrical single photon generation could be excellent on - chip quantum light sources for a wide range of photonics applications for quantum communications and networks.

Scientists are beginning to find practical uses for materials such as hexagonal boron nitride that manipulate light in usual ways.

One of the most promising, recently identified photocatalytic new materials is inexpensive graphitic carbon nitride.

«New class of materials for organic electronics: Joint project details charge transport in polymeric carbon nitride for first time.»

«Carbon nitrides need not fear the competition with conventional organic semiconductor materials.

Polymeric carbon nitride is an organic material with interesting optoelectronic properties.

«We use a proprietary platform called ultra-silicon-rich nitride, with a material composition of seven parts silicon, three parts nitrogen, with the large nonlinearity and photon efficiency needed for high gain amplification, through the efficient transfer of photons from a pump to the signal.

Other materials could be used in addition to titanium nitride, and superconducting wires could be surrounded by superinsulators, creating a «supercircuit» that would generate no heat and keep a current infinitely long.

For a number of reasons, gallium nitride is a good material in which to make this happen, but it also has drawbacks — due to the way it's manufactured, you end up with a material that's very irregular at the atomic level.

They then coupled diamond, a material that changes its shape very little with electric voltage, with aluminum nitride, a piezoelectric material, and embedded the IDT inside their new SAW device.

Unlike other healable materials that use hydrogen bonds, boron nitride nanosheets are impermeable to moisture.

His team added boron nitride nanosheets to a base material of plastic polymer.

Depending on the percentage of boron nitride nanosheets added to the polymer, this self - healing may require additional heat or pressure, but some forms of the new material can self - heal at room temperature when placed next to each other.

The nanotechnology team at Deakin's Institute for Frontier Materials has been working on boron nitride nanomaterials for two decades and has been internationally recognized for its work in the development of boron nitride nanotubes and nanosheets.

In order to generate the broad spectrum, the researchers shone laser light into a structure that guides light, called a waveguide, made of a glass - like material, silicon nitride, embedded in regular glass (silicon oxide).

In hopes of limiting the disastrous environmental effects of massive oil spills, materials scientists from Drexel University and Deakin University, in Australia, have teamed up to manufacture and test a new material, called a boron nitride nanosheet, that can absorb up to 33 times its weight in oils and organic solvents — a trait that could make it an important technology for quickly mitigating these costly accidents.

Amano and Akasaki laid the groundwork by getting gallium - nitride, a notoriously finicky material, to emit a dim blue glow while working together at Nagoya University in the late 1980s.

«We attribute the high activity of the molybdenum - soy catalyst (MoSoy) to the synergistic effect between the molybdenum - carbide phase and the molybdenum - nitride phase in the composite material,» Chen said.

Previously, the γ» phase of iron nitride has only been synthesized in either thin - film form in high - vacuum environments or as inclusions in other materials, and never integrated into an actual device.

The FAST manufacturing method enables the creation of transformer cores from raw starting materials in minutes, without decomposing the required iron nitrides, as could happen at the higher temperatures used in conventional sintering.

The iron nitride powders are then consolidated through a low - temperature field - assisted sintering technique (FAST) that forms a solid material from loose powders through the application of heat and sometimes pressure.

«This is the first observation of a significant pyroelectric effect in peptide microtubes similar to what's seen with semiconductor materials such as zinc oxide or aluminum nitride,» Kholkin said.

The high - quality material graphene, a single - atomic layer of carbon, embedded in hexagonal boron nitride demonstrates unusual physics due to the hexagonal — or honey comb — symmetry of its lattice.

In this experiment, Drndić and her colleagues worked with a different material — silicon nitride — rather than attempting to craft single - atom - thick graphene membranes for nanopores.

But it's possible to use indium arsenide, gallium arsenide, gallium nitride or other so - called III - V materials from group III and group V. Being from different groups on the periodic table means transistor materials would have different properties, and the big one here is better electron mobility.

It is based on boron nitride, a graphene - like 2D material, and was selected because of its capability to manipulate infrared light on extremely small length scales, which could be applied for the development of miniaturized chemical sensors or for heat management in nanoscale optoelectronic devices.

From our studies, we have found the best results using silicon nitride as the diaphragm material.

Two - dimensional materials (2DMs) such as graphene, hexagonal boron nitride, silicene and others, are currently amongst the most intensively studied classes of materials that hold great promise for future applications in many technological areas.

Synthesis under high pressure provides a reliable means to control growth of certain other materials (e.g., diamond and cubic boron nitride), so the Strobel team decided to pursue that approach for clathrates.