Search Results for "Atomic Layer Deposition Ozone"
Original Source: Surface reaction mechanisms during ozone and oxygen plasma assisted atomic layer deposition of aluminum oxide.
We have elucidated the reaction mechanism and the role of the reactive intermediates in the atomic layer deposition (ALD) of aluminum oxide from trimethyl aluminum in conjunction with O(3) and an O(2) plasma. In situ attenuated total reflection Fourier transform infrared spectroscopy data show that both -OH groups and carbonates are formed on the surface during the oxidation cycle. These carbonates, once formed on the surface, are stable to prolonged O(3) exposure in the same cycle. However, in the case of...
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Ca oxalate crystal deposition disease
Calcium Pyrophosphate Dihydrate Crystal Deposition Disease
Thrombotic Thrombocytopenic Purpura TTP and HemolyticUremic Syndrome HUS
Hemolytic-uremic syndrome (HUS) and thrombotic thrombocytopenic purpura (TTP) are microangiopathic disorders—that is, they are characterized by abnormalities (chiefly blood clots) that occur w...
Ventricular aneurysms are usually aftereffects of myocardial infarctions. When the heart muscle (cardiac muscle) partially dies during a heart attack, a layer of muscle may survive, and being severe...
Macular degeneration in the elderly (AMD) is a major cause of blindness. Its prevalence increases to 30% in patients 75 to 85 years of age. AMD occurs in two forms: dry and wet AMD. Central geograph...
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Space-age nanotech, one atomic layer at a time
Vivek Dwivedi, a technologist at NASA's Goddard Space Flight Center is experimenting with an emerging technology that might provide an effective technique for defending sensitive spacecraft compone...
Atomic layer etch analysis accelerates green chemistries
Researchers sponsored by Semiconductor Research Corporation (SRC), the world's leading university-research consortium for semiconductors and related technologies, today announced development of a mode...
Shape-selective sieving layers on an oxide catalyst surface
Templated atomic layer deposition (ALD) is used to create oxide ‘nanocavities’ on the surface of catalyst particles. Subnanometre-nm films containing nanocavities act as sieves for the underlying...
Antarctic ozone hole smaller than in 2011
GENEVA, Sept 14 (Reuters) - The hole in the ozone layer, the earth's protective shield against ultraviolet rays, is expected to be smaller this year over the Antarctic than last, showing how a ban on...
Reducing Ozone Limits Would Save Lives, Report States
WEDNESDAY, July 18 -- Enforcing the current federal ozone standard would significantly reduce ozone-related illnesses and deaths in the United States, and introducing tighter restrictions on ozone wou...
Climate change linked to ozone loss: May result in more skin cancer
Scientists are warning that a newly-discovered connection between climate change and depletion of the ozone layer over the US could allow more damaging ultraviolet (UV) radiation to reach Earth's surf...
Scientist: Ozone thinning has changed ocean circulation
[NEWS] Contact: Phil Sneiderman prs@jhu.edu 443-287-9960 Johns Hopkins University According to a Johns Hopkins earth scientist, the hole in the Antarctic ozone layer has caused changes in the way t...
Scientists use 'the force' (atomic force microscopy) to decode secrets of our gut
A new technique based on atomic force microscopy was developed to help "read" information encoded in proteins that make up the mucus layer that lines our gut.
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Atomic layer deposition of dielectrics on graphene using reversibly physisorbed ozone.
Integration of graphene field-effect transistors (GFETs) requires the ability to grow or deposit high-quality, ultrathin dielectric insulators on graphene to modulate the channel potential. Here, we s...
Iridium wire grid polarizer fabricated using atomic layer deposition.
ABSTRACT: In this work, an effective multistep process towards fabrication of an iridium wire grid polarizer for UV applications involving a frequency doubling process based on ultrafast electron bea...
Nanopatterning by direct-write atomic layer deposition.
A novel direct-write approach is presented, which relies on area-selective atomic layer deposition on seed layer patterns deposited by electron beam induced deposition. The method enables the nanopatt...
Transparent conductive gas-permeation barriers on plastics by atomic layer deposition.
A mixed-deposition atomic layer deposition process produces Hf:ZnO films with uniform dopant distribution and high electrical conductivity (resistivity = 4.5 × 10(-4) W cm), optical transparency (>85...
This report is the first effort to use atomic layer deposition method for deposition of nanosized-thin and highly conformal Al(2)O(3) coatings onto LiMn(2)O(4) cathodes with precise thickness-control...
