The specifics: a germanium wafer is spun at high speeds and subjected to various gases that encourage the growth of layers of
semiconducting material such as gallium arsenide.
To form the device, Petroff's postdoc Winston Schoenfeld first made a block
of semiconducting materials using molecular beam epitaxy.
AB - stacking of two layers of graphene leads to the formation of a material with
semiconducting properties by applying an external electric field.
Photovoltaic devices
use semiconducting material like silicon in a related way, with incoming photons knocking loose electrons to generate electricity.
Fountaine, K. T., Kendall, C. G. & Atwater, H. A. Near - unity broadband absorption designs for
semiconducting nanowire arrays via localized radial mode excitation.
«Graphene - based field - effect transistor
with semiconducting nature opens up practical use in electronics.»
The paper is titled «High - mobility three - atom - thick
semiconducting films with wafer scale homogeneity.»
«To our knowledge this is the first experimental report
on semiconducting titanium nitride» said lead author Bhadram.
As well as being incredibly malleable, any droplet of liquid metal contains a highly - conductive metallic core and an atomically
thin semiconducting oxide skin — all the essentials needed for making electronic circuits.
UNIST announced a method for the mass production of boron / nitrogen co-doped graphene nanoplatelets, which led to the fabrication of a graphene - based field - effect transistor (FET) with
semiconducting nature.
Hiroshi Yoneyama and his colleagues at Osaka University projected an image onto a thin film of polyaniline which contains particles of
semiconducting titanium dioxide.
«This opens up a new field of research into new applications for inexpensive, readily available
organic semiconducting polymers within solar fuel cells,» said principal researcher Krishnan Rajeshwar, UTA distinguished professor of chemistry and biochemistry and co-Director of UTA's Center for Renewable Energy, Science & Technology.
«We are taking these design rules and doing wet chemistry in the lab to make
new semiconducting rubber materials.»
The NEC group, led by Hisao Kawaura, varied a standard transistor design in which a central
semiconducting channel lies between source and drain electrodes, created by «doping» the base material with impurities that carry an excess of electrons.
In a practical cell the electrodes are constructed from
semiconducting oxides, the exact composition of which is the subject of intense research at the UNSW and other institutions to find the best combination of photo - sensitivity, corrosion resistance and low band gap.
Researchers have established the solid - state electrical properties of one such polymer, called PTMA, which is about 10 times more electrically conductive than
common semiconducting polymers.
Most semiconducting optoelectronic devices (OEDs), including photodiodes, solar cells, light emitting diodes (LEDs), and semiconductor lasers, are based on inorganic materials.
They're employing photosensitive quantum dots —
semiconducting particles only a few nanometers wide that have optical and electronic properties — as a catalyst.
The team also sent a large current through the circuit to burn out any useless metallic nanotubes and ensure that only
semiconducting nanotubes were left behind (Nature, DOI: 10.1038 / nature12502).
Recently, a joint research team, consisting of Prof. Kilwon Cho and Dr. Boseok Kang with Pohang University of Science and Technology, and Prof. Yun - Hi Kim and Dr. Ran Kim with Gyungsang National University, has developed a new n -
type semiconducting polymer with superior electron mobility and oxidative stability.
Berkeley Lab researchers using a bioinorganic hybrid approach to artificial photosynthesis have
combined semiconducting nanowires with select microbes to create a system that produces renewable molecular hydrogen and uses it to synthesize carbon dioxide into methane, the primary constituent of natural gas.
Modern electronic technologies like smart phones and computers are mainly based on circuits that use solid state components, with fixed metallic tracks and
semiconducting devices.
This effectively proved that these three - atom -
thick semiconducting films can be made into multi-level electronic devices of unsurpassed thinness.
A team of scientists at the University of Cambridge has reported the light - driven photoreforming of cellulose, hemicellulose and lignin to H2 using
semiconducting cadmium sulfide quantum dots in alkaline aqueous solution.
The team states, «This strategy may open up an effective way to make other metallic /
semiconducting nanomaterials via one - step synthetic reactions through an environmentally benign and cost - effective approach.»
Another promising application is delivering quantum dots — nanoparticles made of
semiconducting metals that fluoresce.
In the information technology world, nanoprinting could be used to achieve the controlled placement of catalytic seed particles for
growing semiconducting nanowires.
Soon
semiconducting chips employed in high - speed logic operations will be imprinted with more than 100,000 transistors, and chips in a computer's memory will store up to 16 million bits of information
Cells made from slices of
semiconducting crystals such as silicon are the most efficient: some convert more than 20 per cent of the energy of sunlight into electrical power.
Crystalline silicon isn't the most
efficient semiconducting material; researchers at the National Renewable Energy Laboratory in Golden, Colorado, have achieved more than 16 % sunlight - to - hydrogen conversion efficiency using gallium, indium and arsenide.
Cadmium - telluride, however, has an advantage over silicon because it can absorb the same amount of sunlight with 98 percent
less semiconducting material, thus reducing the overall cost of the solar panel.
Two - dimensional phosphane, a material known as phosphorene, has potential application as a material for
semiconducting transistors in ever faster and more powerful computers.
Kinetic chemical synthesis may also allow for nanothreads with mixed diamond and graphite - like bonding that that could have
useful semiconducting properties.
Tandem solar cells, in which two solar cells with different absorption characteristics are linked to use a wider range of the solar spectrum, were fabricated with each layer processed from solution with the use of bulk heterojunction materials
comprising semiconducting polymers and fullerene derivatives.
Simply put, by employing less
expensive semiconducting material thin - film solar cells would be cheaper to make, a fact born out by thin - film solar manufacturer First Solar's world - beating module that costs 73 cents per watt in 2011, albeit before the expense of installing it on the roof.
But Solyndra was always a dicey technology proposition: Take a
temperamental semiconducting film that must be perfectly applied at high speed and pair it with a shape that is both hard to manufacture and ship.
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.
These results are consistent with the idea that
semiconducting carbon nanotubes are able to expand the light capture by plant materials to other parts of the solar spectrum such as the green, near infrared and ultraviolet.
To find out, Fabio Benfenati at the Italian Institute of Technology in Milan, and colleagues, seeded nerve cells onto the surface of a light -
sensitive semiconducting polymer, and made it into the electrode of a light - driven electrolytic cell.
Phrases with «semiconducting»