Sentences with phrase «nanotube transistors»

To overcome the drawbacks of single - walled carbon nanotube field - effect transistors and improve their performance, the researchers deposited PVDF - TrFE on the top of self - fabricated single - walled carbon nanotube transistors by inkjet printing, a low - cost, solution based deposition process with good spatial resolution.
The new study confirms that, in terms of size, carbon - nanotube transistors can beat out silicon — and that's no small feat.
The computer also represents a victory for much - hyped carbon nanotube transistors, created in 1998 by Cees Dekker and his group at Delft University of Technology in the Netherlands.
In October, IBM announced they fit 10,000 carbon nanotube transistors onto a single chip, bringing nanotube - based computers closer to reality.
«The carbon nanotube transistor carries over four times the electrical current density of the best similarly scaled silicon - based transistor,» Franklin says.
l Carbon nanotubes: Cees Dekker and colleagues at Delft University of Technology made the first practical carbon nanotube transistor in 1998, leading to the first carbon nanotube computer (see main story).
The receptor - containing nanodiscs were then placed in a special orientation on a carbon nanotube transistor, completing the bioelectronic nose.

Not exact matches

Carbon nanotubes, one - tenth to one - hundredth the thickness of the smallest silicon transistors, remain functional at smaller scales.
The resulting cluster of nanotubes, fused to two palladium electrodes, acted as a transistor (Nano Letters, DOI: 10.1021 / nl050405n).
Laid down in thin films, randomly oriented carbon nanotubes form conductive networks that can serve as electrodes; patterned and layered films can function as sensors or transistors.
From a carbon nanotube, Dutch researchers have crafted a transistor that toggles on and off with the flow of a single electron.
CNT FETs work like traditional transistors, but use carbon nanotubes instead of silicon.
Plank and her team attached their estrogen - binding aptamers to the other important part of their device: the carbon nanotube thin film field effect transistor (CNT FET).
Researchers have been trying to solve this major problem by creating carbon nanotubes — or CNT — transistors.
Carbon nanotubes may be the key to shrinking down transistors and squeezing more computer power into less space.
SMALL WONDER A new transistor, made with carbon nanotubes, is tinier than standard silicon versions.
The resulting cluster of nanotubes, fused to two palladium electrodes, acted as a transistor.
They then attached strips of gold to both ends of each nanotube, creating a transistor, and linked up to three such devices in various ways to make circuits that would execute simple logical functions: flipping a signal from off to on or vice versa, turning two off signals into an on, storing a unit of information or creating an oscillating signal.
«Single - walled carbon nanotube field - effect transistors (FETs) have characteristics similar to polycrystalline silicon FETs, a thin film silicon transistor currently used to drive the pixels in organic light - emitting (OLED) displays,» said Mark Hersam, Dodabalapur's coworker and a professor in the McCormick School of Engineering and Applied Science at Northwestern University.
The next step, Dodabalapur said, is to implement more complex circuits with single - walled carbon nanotube field - effect transistors.
About a dozen possible next - generation candidates exist, including tunnel FETs (field effect transistors, in which the output current is controlled by a variable electric field), carbon nanotubes, superconductors and fundamentally new approaches, such as quantum computing and brain - inspired computing.
«Before single - walled carbon nanotube field - effect transistors were fabricated by inkjet printing, they were dispersed in an organic solvent to make a printable ink.
To confirm their hypothesis, Dodabalapur and his coworkers performed experiments comparing the effects of polar and non-polar vapors on single - walled carbon nanotube field - effect transistors.
In the paper, researchers examined the effect of a fluoropolymer coating called PVDF - TrFE on single - walled carbon nanotube (SWCNT) transistors and ring oscillator circuits, and demonstrated that these coatings can substantially improve the performance of single - walled carbon nanotube devices.
Although circuits made with single - walled carbon nanotube are expected to be more energy - efficient than silicon ones in future, their drawbacks in field - effect transistors, such as high power dissipation and less stability, currently limit their applications in printed electronics, according to Dodabalapur.
It was roughly 15 years ago that carbon nanotubes were first fashioned into transistors, the on - off switches at the heart of digital electronic systems.
The researchers built a transistor that contains carbon nanotubes and antibodies programmed to attack the Candida yeast cells.
IBM is working on replacing silicon channels in transistors with carbon nanotubes.
These are made of a cylindrical mesh of interlinked carbon atoms that can carry current, but there are lots of difficulties: connecting them to the rest of the transistor, improving their not - so - hot semiconductor properties, and ensuring the nanotubes are sized and aligned correctly.
A new type of transistor, made from carbon nanotubes, can be folded, crumpled, and deformed, and still work, which may lead to longer lasting gadgets.
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