In the W - TENG, plastic was swapped for a multipart fiber
made of graphene — a single layer of graphite, or pencil lead — and a biodegradable polymer known as polylactic acid (PLA).
A new 3D - printing ink could soon make it possible to build objects
made of graphene for 60 percent of their volume and 75 percent of their weight.
An electron microscope image shows flake - like nanoplatelets
made of graphene quantum dots drawn from coal and graphene oxide sheets, modified with boron and nitrogen.
Made of graphene and carbon nanotubes, the researchers» detector far outpaces any existing one in its ultrasensitivity to charged particles, minuscule size, low - power requirements, and low cost.
Although the new scenario is based on a mathematical study and computer simulations, the proposed hardware of the sail is already being developed in laboratories today: «The sail could be
made of graphene, an extremely thin and light but mega-tough carbon film,» René Heller says.
The researchers became the first to design a ferroelectric junction with electrodes
made of graphene, a carbon material only one atom thick.
An international research team has developed inks
made of graphene - like materials for inkjet printing.
Researchers team has developed inks
made of graphene - like materials for inkjet printing.
«Easy printing of biosensors
made of graphene.»
In the W - TENG, plastic was swapped for a multipart fiber
made of graphene — a single layer of graphite, or pencil lead — and a biodegradable polymer known as poly - lactic acid (PLA).
«Super-stretchable yarn is
made of graphene.»
Shepard is part of a team of scientists from Columbia and IBM working under a $ 4 million grant from the Defense Advanced Research Projects Agency (DARPA) to develop field - effect transistors
made of graphene, which is particularly good at amplifying weak signals at high frequencies.
You've also been designing hinges
made of graphene, which would be a necessary part of any kind of nanoscale machine.
Not exact matches
Asked how far out he reckons
graphene is from finding its way into real world electronics, he added: «While considerable challenges still exist, some great steps forward have been
made over the past year or so and I expect high - tech applications
of graphene in consumer technologies to appear in the general market within the next 2 - 3 years.
Made up
of two layers
of graphene, a form
of carbon arranged in single - atom - thick sheets, the structure's weird behavior suggests it may provide a fruitful playground for testing how certain unusual types
of superconductors work, physicist Pablo Jarillo - Herrero
of MIT...
A few years ago, his lab
made graphene oxide — a functional form
of graphene — and fabricated it into a multilayer, micrometer - thick, paper - like membrane.
A frenzy for two - dimensional materials kicked off in 2004 with the creation
of graphene —
made from just a single layer, or monolayer,
of carbon atoms.
A single sheet
of graphene resembles atomically thin chicken wire and is composed
of carbon atoms joined in a pattern that
makes the material extremely tough and impervious to even the smallest atom, helium.
Trinity College's Coleman says that the solution - based exfoliation methods, which to date produce
graphene up to several tens
of microns wide, are probably best suited for «middle - size industrial quantities, whereas the Intels
of the world will likely be more interested in growing huge areas
of graphene using CVD - type processes,» which so far can
make samples up to a few square centimeters.
Made up
of two layers
of graphene, a form
of carbon arranged in single - atom - thick sheets, the structure's weird behavior suggests it may provide a fruitful playground for testing how certain unusual types
of superconductors work, physicist Pablo Jarillo - Herrero
of MIT reported March 7 at a meeting
of the American Physical Society.
Researchers at the Massachusetts Institute
of Technology and elsewhere are looking to
make graphene using chemical vapor deposition (CVD), an established process that could be readily integrated into microchip fabrication.
In early testing, a three - dimensional (3D) fiber - like supercapacitor
made with the uninterrupted fibers
of carbon nanotubes and
graphene matched or bettered — by a factor
of four — the reported record - high capacities for this type
of device.
Making small amounts is surprisingly easy, states
graphene's discoverer, Andre K. Geim
of the University
of Manchester in England.
«By
making contact only to the 1D edge
of graphene, we have developed a fundamentally new way to bridge our 3D world to this fascinating 2D world without disturbing its inherent properties.
The unexpected discovery
of self - folding abilities in
graphene suggests we're closer to
making the single - atom sheets into useful electronic components
To
make their film stronger, they repeated the initial steps, layering four sheets
of graphene atop one another.
Various methods
of making graphene - based field effect transistors (FETs) have been exploited, including doping
graphene tailoring
graphene - like a nanoribbon, and using boron nitride as a support.
The researchers found that the act
of sliding causes
graphene atoms to
make better contact with the object sliding along it; this increase in the quality
of contact leads to the increase in friction as sliding proceeds and eventually levels off.
A method for
making large amounts
of the wonder material
graphene is so simple that it can be done with kitchen appliances and Fairy Liquid
Researchers have found a way to trigger the innate, but previously hidden, ability
of graphene to act as a superconductor — meaning that it can be
made to carry an electrical current with zero resistance.
It is hoped that
graphene - oxide membrane systems can be built on smaller scales
making this technology accessible to countries which do not have the financial infrastructure to fund large plants without compromising the yield
of fresh water produced.
Electrochemical capacitors
made with compressed gels
of chemically converted
graphene exhibit high energy density.
The unique electronic features
of graphene, combined with its flexible nature,
make it a promising material to integrate into plastic and fabric, something that will be important building blocks in a future interconnected world.
The secret is to intercalate atoms or Pb islands below the sea
of hexagons
of carbon that
make up
graphene.
Now, researchers report in ACS Nano that mimicking the structure
of the «powdery alligator - flag» plant has enabled them to
make a
graphene - based aerogel that meets these needs.
Carbon nanotubes are tiny hexagonal tubes,
made by rolling sheets
of graphene, said Rasel Das, first author
of the paper.
Dr Joshi said: «The new treatment system is
made by converting naturally occurring graphite into
graphene oxide membranes that allow high water flow at atmospheric pressure, while removing virtually all
of the organic matter.»
Lately we've been working on
graphene, which is a sheet one atom thick,
made entirely
of carbon atoms arranged in a hexagonal structure like chicken wire.
He
made the particles by atomizing a dispersion
of graphene - based sheets into tiny water droplets.
Lately, we've been
making lots
of tiny
graphene resonators.
Scientists studying
graphene's properties are using a new mathematical framework to
make extremely accurate characterizations
of the two - dimensional material's shape.
Some researchers are investigating other promising ways to
make graphene an effective semiconductor, like using two - layer
graphene along with a special insulating polymer or punching holes in
graphene to create a semiconducting «nanomesh,» but it remains to be seen if any
of these techniques will produce viable chips.
Researchers who study or are working to
make pillared
graphene have primarily viewed two characteristics
of the theoretical material: the length
of the pillars and their distance from each other.
Work by Yeh's group and international collaborators later revealed that
graphene made using the new technique is
of higher quality than
graphene made using conventional methods: It is stronger because it contains fewer defects that could weaken its mechanical strength, and it has the highest electrical mobility yet measured for synthetic
graphene.
«Typically, it takes about ten hours and nine to ten different steps to
make a batch
of high - mobility
graphene using high - temperature growth methods,» Yeh says.
While coating the electrode surface with a thin layer
of carbon or
graphene had been shown to improve performance, there was no microscopic and quantitative understanding
of why this
made a difference, Bazant says.
The tips
of these MWCNTs are
made of deployed
graphene sheets.
Working with
graphene - related research is about breaking new ground which involves many difficult challenges, but eventually our work can revolutionise the future
of communication and that's what
makes it so exciting,» says Andrei Vorobiev, senior researcher at Chalmers University
of Technology.
Gurpreet Singh, assistant professor
of mechanical and nuclear engineering, and his student researchers are the first to demonstrate that a composite paper —
made of interleaved molybdenum disulfide and
graphene nanosheets — can be both an active material to efficiently store sodium atoms and a flexible current collector.
The team used a plasma - enhanced chemical vapour deposition (PECVD) process to grow the carbon nanotubes, while optimizing the plasma growth conditions to produce MWCNTs with tips
made of deployed
graphene sheets.