Sentences with word «phosphide»

Phosphide is a word used to describe a compound that is formed when phosphorus combines with another element. It is commonly used in chemistry to refer to substances that contain phosphorus and have important industrial and scientific applications. Full definition
An efficiency of 32.5 % was achieved using a gallium indium phosphide (GaInP) top cell, which is a similar structure to the previous record efficiency of 29.8 % announced in January 2016.
Moore and his colleagues found that coating the surface of gallium phosphide with a film of the polymer vinylpyridine alleviates the instability problem, and if the vinylpyridine is then chemically treated with the cobaloxime catalyst, hydrogen production is significantly boosted.
Gray S, Lee JA, Hovda LR, Brutlag A. Zinc phosphide rodenticide toxicity in dogs: 362 cases (2004 - 2009).
Hitherto existing optical senders and receivers are based on indium phosphide substrates, which are available only in small dimensions and to very high costs.
This material, a hybrid formed from interfacing the semiconductor gallium phosphide with a molecular hydrogen - producing cobaloxime catalyst, has the potential to address one of the major challenges in the use of artificial photosynthesis to make renewable solar fuels.
After three years, he finally got gallium phosphide crystals as good as anything Nichias larger rivals were putting out.
In previous work, Pasek and colleagues suggested that the ancient meteorites contained the iron - nickel phosphide mineral «schreibersite,» and that when schreibersite came into contact with Earth's watery environment a phosphate, a salt, was released that scientists believe could have played a role in the development of «prebiotic» molecules.
«Our method could be widely applicable to a large number of metal phosphide materials for catalysts — not just for water splitting, but for a range of things,» he said.
Zinc phosphide rodenticide toxicity in dogs: 362 cases (2004 - 2009).
Less is definitely more, as researcher discover downsizing gallium phosphide into nanowires improves the material's effectiveness as a solar fuel cell component.
Unfortunately, all things being equal, most customers bought from the much larger, well - known companies, leaving Nichia only a sliver of the pie: about $ 10,000 a month in gallium phosphide sales.
Dehydration of phosphoric acid using sodium chloride gives trimetaphosphate, and here we report that trichlorosilane, primarily used for the production of high - purity silicon, reduces trimetaphosphate to the previously unknown bis (trichlorosilyl) phosphide anion.
That voltage is also higher than what is needed to induce the cobalt to precipitate out of the solution and form the cobalt phosphide catalyst, which means when the bionic leaf is running there are always enough electrons around to induce the catalyst's formation — and therefore no excess metal left to poison the microbes or bring the bionic leaf's water - splitting to a halt.
«We also found silver iodine phosphide and moissanite (silicon carbide) grains, again in highly unexpected forms.
The researchers claim their film is «the first heterobimetallic phosphide thin film» created from iron, manganese and phosphorus that starts out as a single precursor.
The underlying indium phosphide dissolves into the gold nanoparticles above, creating a gold alloy.
The foamy nickel gives the film a large surface, the conductive graphene protects the nickel from degrading and the metal phosphide carries out the reaction.
The indium phosphide nanoclusters are 400 times more likely to grab a photon passing through them than some organic molecules that have been used to split water.
A gold electrode coated with nanoclusters of indium phosphide absorb incoming photons of light (that is the wavy line marked «hv» in the image).
Despite its promising electronic properties, gallium phosphide features a mid-sized optical band gap which ultimately limits the total fraction of solar photons available for absorption.
Here, a recent article on USNEWS about zinc phosphide.
Hoffman and his colleagues crafted their metamaterial semiconductor by placing alternating 80 - nanometer - thick (one nanometer equals 3.94 x 10 - 8 inch) layers of indium gallium arsenide and indium aluminum arsenide atop an indium phosphide substrate 5.1 centimeters (two inches) in diameter.
Just after Nakamura joined the company, a sales manager asked Nakamuras boss to direct the young researcher to develop gallium phosphide crystals for use in red and yellowish - green LEDs.
In August researchers at the University of Arizona found an answer: Schreibersite, an iron - nickel phosphide that occurs in iron meteorites, could have provided all the phosphorus needed.
Beginning with studies on the semiconductor indium phosphide, the team teased out the chemical mechanisms and necessary conditions underpinning the surface - etching process.
One group at Lund University in Sweden has been able to kick - start the spontaneous growth of «forests» of 1000 - nm - high «nanowire trees», using 50 - nm - wide clusters of gold as a catalyst, and a gallium phosphide substrate.
After all that, the commercial reception to the gallium arsenide crystals was much the same as it had been with gallium phosphide.
They isolated and characterized a phosphide salt derived from treatment of dehydrated phosphoric acid with trichlorosilane, a compound already used at the commercial scale to produce high - purity silicon.
The computer's performance has generally been improved through upgrades in digital semiconductor performance: shrinking the size of the semiconductor's transistors to ramp up transaction speed, packing more of them onto the chip to increase processing power, and even substituting silicon with compounds such as gallium arsenide or indium phosphide, which allow electrons to move at a higher velocity.
«All the phosphates were pretty boring, but then we hit this phosphide — schreibersite — and it was the most beautiful NMR [nuclear magnetic resonance] spectrum that Matt had ever produced,» Lauretta says.
The Pacific Ocean jellyfish Aequorea victoria, it appears, produces just the sort of light that researchers try to coax from crystalline semiconductors such as gallium arsenide or indium phosphide.
Taken together, the ancient unheated PAH carbon as well as the phosphides, the metallic aluminum, and the moissanite suggest that Hypatia is an assembly of unchanged pre-solar material.
They bonded a thin layer of indium phosphide, a compound that acts as a medium for the laser, onto silicon sheets by exposing both materials to a blast of hot, electrically charged oxygen atoms; the indium phosphide was spiked with aluminum gallium indium arsenide to give it added speed.
The researchers had success in applying their technique to exotic wafer and semiconducting materials, including indium phosphide, gallium arsenenide, and gallium phosphide — materials that are 50 to 100 times more expensive than silicon.
Brown and Parker are now working on making the photonic crystal out of silicon, gallium arsenide or indium phosphide, which would allow them to integrate the antenna and electronics on the same chip.
The team observed the same phenomena in gallium phosphide and indium arsenide, two more examples of semiconductors formed by combining elements from the third and fifth columns of the periodic table.
At temperatures below 300 degrees Celsius (572 degrees Fahrenheit), the tiny gold - alloy particles, now swathed with water molecules, etch nanoscale pits into the indium phosphide.
A key advance came 18 years ago, when John Turner, an electrochemist at the U.S. National Renewable Energy Laboratory, designed a device that comprised layers of gallium indium phosphide and gallium arsenide semiconductors.
Tests by Bao's lab compared nickel foam and the phosphide both with and without graphene in the middle and found the conductive graphene lowered charge - transfer resistance for both hydrogen and oxygen reactions.
We have trained dozens of undergraduate, graduate, and postdoctoral researchers and tested thousands of c - Si, a-Si, oxide, nitride, carbide, phosphide, arsenide, selenide, sulfide, bismide, and antimonide semiconductors and co-wrote a book based on our approach.
Recently, the dangers of zinc phosphide, a poison used to kill gophers and moles, has hit the press.
The last ingredient used in rat poisons is zinc phosphide.
The most dangerous forms of pesticides include: slug and snail bait (containing metaldehyde, with iron phosphate products also a concern), fly bait (containing methomyl), systemic insecticides (containing disyston or disulfoton), mole or gopher bait (containing zinc phosphide), and most forms of rat poisons.
This time the answer may well be «gallium indium phosphide, with a germanium topping.»
The new JCAP photocathode construct consists of the semiconductor gallium phosphide and a molecular cobalt - containing hydrogen production catalyst from the cobaloxime class of compounds.
As an absorber of visible light, gallium phosphide can make use of a greater number of available solar photons than semiconductors that absorb ultraviolet light, which means it is capable of producing significantly higher photocurrents and rates of fuel production.
However, gallium phosphide can be notoriously unstable during photoelectrochemical operations.

Phrases with «phosphide»

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