Sentences with phrase «carbon nanotube»

Professor Ravi Silva, Director of the ATI and Head of the Nanoelectronics Centre (NEC) at the University of Surrey said: «In the future, carbon nanotube modified carbon fibre composites could lead to exciting possibilities such as energy harvesting and storage structures with self - healing capabilities.

The team fabricated simple devices consisting of a carbon nanotube bridging two electrodes.

Though it could take years to mature, the Stanford approach points toward the possibility of industrial - scale production of carbon nanotube semiconductors, according to Naresh Shanbhag, a professor at the University of Illinois at Urbana - Champaign and director of SONIC, a consortium for next - generation chip design research.

Genetic tweaks enabled the virus to bind tightly to the carbon nanotube, creating a high - powered battery, as she described in a May issue of Science.

Max Shulaker, doctoral student in electrical engineering at Stanford University, holds a wafer filled with carbon nanotube computers (CNTs).

«People have been talking about a new era of carbon nanotube electronics moving beyond silicon,» said Mitra, an electrical engineer and computer scientist and Chambers Faculty Scholar of Engineering.

«Integrated simulation of active carbon nanotube forest growth and mechanical compression,» will be published in the upcoming edition of the journal, Carbon.

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.

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.

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.

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.

«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.

«We found substantial performance improvements with the fluoropolymer coated single - walled carbon nanotube both in device level and circuit level,» Dodabalapur noted.

«The use of [PVDF - TrFE] capping layers will be greatly beneficial to the adoption of single - walled carbon nanotube circuits in printed electronics and flexible display applications.»

The next step, Dodabalapur said, is to implement more complex circuits with single - walled carbon nanotube field - effect transistors.

«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 study, said George V. Nazin, a professor of physical chemistry, modeled the behavior often observed in carbon nanotube - based electronic devices, where electronic traps are induced by stochastic external charges in the immediate vicinity of the nanotubes.

In late 2016, for instance, Sang Hoon Joo of Ulsan National Institute of Science and Technology (UNIST) in South Korea reported that an iron - and nitrogen - doped carbon nanotube catalyst has activity comparable to commercial catalysts.

The receptor - containing nanodiscs were then placed in a special orientation on a carbon nanotube transistor, completing the bioelectronic nose.

You can think of it as a carbon nanotube that's been rolled out flat.

«I, for one, welcome our new carbon nanotube spider overlords!»

«Researchers advance technique to detect ovarian cancer: Fluorescent carbon nanotube probes used to achieve first in vivo success.»

According to the researchers, their modelling suggests that acetylene's potential role needs further study, as does the currently accepted model for carbon nanotube production.

In the as - prepared electroactive threads, the carbon nanotube sheets coated the fiber core with a thickness of less than half a micron.

The paper is titled «Highly sensitive electronic whiskers based on patterned carbon nanotube and silver nanoparticle composite films.»

FAMU - FSU College of Engineering doctoral candidate Joshua DeGraff developed an advanced class of scalable motion sensors using silver ink electrodes and sheets of pure carbon nanotube buckypaper.

The companies say this mission was an important first step in the development of high - density, nonvolatile, carbon nanotube — based memories for spaceflight applications.

Furthermore, calculations have shown that it is possible to create a combined device, where inside a two - layer carbon nanotube there will be magnetic fullerenes.

«We use the carbon nanotube in this flexible network to make a conductive rope - like wrap,» Ban said.

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).

And carbon nanotube membranes come with other perks, Das added, including self - cleaning properties.

From a carbon nanotube, Dutch researchers have crafted a transistor that toggles on and off with the flow of a single electron.

«Our gauge factor has been up to eight times higher than commercial sensors and 75 percent higher than many other carbon nanotube sensors.»

In this latest effort, they used a carbon nanotube paste to form an electrically conductive network matrix with excellent bendability.

As a result, carbon nanotube membranes have the potential to last longer and may be reusable.

Ray Baughman, a materials scientist and carbon nanotube film pioneer at the University of Texas, Dallas, adds that the simplicity of the new speakers is «a big plus» for paving the way toward potential applications, including speaking clothing that could aid the physically or mentally impaired.

«The name of the game is maximizing the number of electrons that get excited in the carbon nanotube, and then having a switch that is fast enough to capture them at their peak,» Cola explained.

The devices, made from transparent and flexible carbon nanotube films, don't require any of the bulky magnets and sound cones of conventional speakers.

With that, they may have opened the way to commercial viability for carbon nanotube - based sensors and their applications.

Ultimately, the researchers believe their device design — a combination of a carbon nanotube antenna and diode rectifier — could compete with conventional photovoltaic technologies for producing electricity from sunlight and other sources.

This so - called carbon nanotube could be likened to an unimaginably long garden hose: a hollow tube just a nanometer or so in diameter but perhaps millions of times as long as it is wide.

For converting heat to electricity, the principle is the same as for light — capturing oscillations in a field with the broadband carbon nanotube antenna.

The result was a highly porous carbon nanotube electrode with lots of oxygens exposed on the surface, ready to bind with lithium.

Lieber fashioned a tip from a carbon nanotube and affixed at the end of it a molecular fragment called a carboxyl group.

The group twisted carbon nanotube fibers into a yarn, then coated one piece of yarn with zinc to form an anode, and another with magnesium oxide to form a cathode.

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.

«It is wonderful to see such a carbon nanotube computer realised, 15 years after our group discovered that carbon nanotube molecules could be used as the basic element of a computer,» says Dekker.

With colleagues, Baughman has developed a «thermocell» constructed from a carbon nanotube - based material that converts waste heat into electricity.

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).

Its basic design is what is known as Turing complete, which means the carbon nanotube machine can theoretically compute anything a regular PC can — just much, much more slowly.