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Showing posts with label graphene. Show all posts
Showing posts with label graphene. Show all posts

Monday, March 12, 2018

New Method for Growing Graphene Could Finally Let Us Build Something With It

Graphene is an amazing material with an equally annoying set of constraints that make it extremely difficult to work with. One of the most significant problems we’ve had with adapting the material for commercial use is producing it. While a number of methods of graphene production have been demonstrated, none of them have lent themselves to the kind of massive scale that typifies the silicon industry’s ability to manufacture, well, silicon. In early 2016, the entire foundry industry was estimated to be capable of nearly 12 million wafer starts per month (in 200mm-equivalent wafers). @Graphene doesn’t have to scale all the way up to that level before entering production, but any widespread adoption of the material requires it to achieve its own economy of scale. New research from @Rice University and the @OakRidge National Laboratory may have moved us closer to that idea, with a new method of creating a large continuous roll of graphene.

https://www.extremetech.com/extreme/265473-new-method-growing-graphene-actually-let-us-build-something

Tuesday, February 20, 2018

Wonder 'Graphair' filter can make drinking water from sea quickly and efficiently

Researchers at the Commonwealth Scientific and Industrial Research Organisation ( #CSIRO), an independent agency of the Australian government, have developed a thin biofilm filter from #graphene that can purify water in one step. For those unaware, graphene, a form of carbon, is the strongest material on Earth and also a great conductor of heat and electricity, but strangely, is water-repellant by nature.

http://www.ibtimes.co.in/wonder-graphair-filter-can-make-drinking-water-sea-quickly-efficiently-761161

Monday, February 5, 2018

Graphene’s Properties Have Been Tested in Micro-Gravity for the First Time

#ZeroGravity #Graphene Everyone’s favorite wonder-material has moved beyond the boundaries of gravity in its latest round of testing. The material was brought aboard a parabolic flight, where a plane alternated climbing and diving in a regular rhythm to simulate micro-gravity for brief intervals of about 23 seconds at a time. These flights are often affectionately referred to as the “vomit comet,” as they tend to inspire some queasiness in humans. The graphene aboard, however, endured the environment and performed well. According to Professor Andrea Ferrari, Director of the Cambridge Graphene Centre, and Science and Technology Officer and Chair of the Management Panel for the Graphene Flagship,“One of graphene’s potential uses, recognised early on, is space applications, and this is the first time that graphene has been tested in space-like applications,” she said in a press release.  The researchers tested graphene’s ability to improve the performance of satellites’ cooling systems by taking advantage of the material’s unique thermal qualities. As Ferrari explained, “We are using graphene in what are called loop-heat pipes. These are pumps that move fluid without the need for any mechanical parts, so there is no wear and tear, which is very important for space applications.” The graphene was first tested on the ground. Those results were significantly better than those from the control group. “By adding graphene, we will have a more reliable loop heat pipe that can operate autonomously in space,” says Dr. Marco Molina, Chief Technical Officer of the Airborne and Space System Division at Leonardo. For the experiment, the researchers coated the main element of the loop-heat pipe, the metallic wick, in graphene. Graphene’s thermal properties allow for improved heat transfer while the porous structure of the material also increases the amount of surface area the liquid is able to come in contact with. It also allows the liquid to flow faster through the wick. The results of the micro-gravity tests showed an increased performance of the graphene-coated wicks compared to untreated ones. The researchers will pivot to developing a prototype utilizing graphene on a satellite or space station which could be tested in space. Graphene Goals Many look to graphene as a definite means of shifting the paradigm of materials science. It seems that the only limit to its potential applications is the imagination of the innovators playing with its properties. Researchers have reported uses for the material ranging from ultra-thin, super-strong bulletproof body armor, batteries that charge up to five times faster, and even unbreakable rubberbands. Researchers are coming up with new ways to manufacture the material cheaply and easily. If this trend continues, it could help the material gain new life by becoming a practical material more widely affordable for consumers. And the innovation continues: scientists are even bringing in spiders to create super-hero strength materials. The future of graphene is bright. Its usefulness on Earth is already established and we will finally begin to see how that may extend into the cosmos. With more testing researchers are bound to find greater applications for this wonder material far beyond cooling systems for satellites. Its versatility is one of its strongest attributes, after all.

https://www.google.com/amp/s/futurism.com/graphenes-properties-tested-micro-gravity-first-time/amp/#ampshare=https://futurism.com/graphenes-properties-tested-micro-gravity-first-time/

Sunday, January 21, 2018

XG Sciences to expand with new graphene production facility

@XG Sciences, a US-based developer and producer of #graphene flakes, has announced its plan to invest millions in expanding its Lansing-area facilities. The company will start operating out of new 64,000 square-foot facility in Vevay Township in March. The company was formed in 2006 based on work out of Michigan State University. The company's technology can be used in automotive batteries and as wire coatings in electronics to prevent microchips from overheating. Some of the material has been used in Samsung phones as a thermally conductive adhesive, said current CEO Philip Rose. Rose also said the expansion marks the first phase in a move toward larger scale commercialization for the company. XG Sciences will receive discounts on property taxes from the township, and it has also been awarded a $520,000 performance-based grant through the Michigan Business Development Program.

https://www.graphene-info.com/xg-sciences-expand-new-graphene-production-facility

Monday, January 8, 2018

Scientists develop graphene sensors that could revolutionise the Internet of Things

Researchers at The University of Manchester have devised #graphene sensors embedded into #RFID s, which have the potential to revolutionise the Internet of Things ( #IoT ).  By layering graphene-oxide (a derivative of graphene) over graphene to create a flexible heterostructure the team have developed humidity sensors for remote sensing with the ability to connect to any wireless network. Graphene was the world's first two-dimensional material isolated in 2004 at The University of Manchester, it is stronger than steel, lightweight, flexible and more conductive than copper. Since then a whole family of other 2-D materials have been discovered and continues to grow. Using graphene and other 2-D materials, scientists can layer these materials, similar to stacking bricks of Lego in a precisely chosen sequence known as van der Waals heterostructures to create high-performance structures tailored to a specific purpose. As reported in Scientific Reports, the groundbreaking nature of this development is that such sensors can be printed layer-by-layer for scalable and mass production at very low cost. The device also requires no battery source as it harvests power from the receiver. Sensors with a RFID enabler are at the heart of the IoT. This new development can provide various applications such as battery-free smart wireless monitoring for manufacturing processes that are sensitive to moisture, food safety, healthcare and nuclear waste.  Credit: University of Manchester The developed technique has the potential to simplify how the information is gathered through its wireless system, nor is it is limited to a particular wireless network and has the ability to be compatible with networks including WiFi and 5G. Dr. Zhirun Hu who led the work said, "The excitement does not end with this new application here, but leads to the future possibilities of integrations of this technique with other 2-D materials to open up a new horizon of wireless sensing applications." Professor Sir Kostya Novoselov, who won the Nobel Prize in Physics and coordinated the project, added, "It is the first example of the printable technology where several 2-D materials come together to create a functional device immediately suitable for industrial applications. The Internet of Things is the fast growing segment of technology, and I'm sure that 2-D materials will play an important role there."

https://www.google.com/amp/s/phys.org/news/2018-01-scientists-graphene-sensors-revolutionise-internet.amp#ampshare=https://phys.org/news/2018-01-scientists-graphene-sensors-revolutionise-internet.html

Thursday, December 21, 2017

Two Layers of Graphene Make Diamond-Hard Armor That Can Stop a Bullet

Diamond-Hard #Armor The media tends to depict bullet-proof armor as something that’s thick and heavier than regular clothes. Despite being for bodily protection, the added bulk of that armor might restrict a person’s movements. But scientists at the City University of New York’s Advanced Science Research Center ( #ASRC ) have found that diamond-hard armor doesn’t need to be thick. The key to less-bulky protection is #graphene, a tightly-packed layer of bonded carbon atoms one million times thinner than a piece of paper. The researchers discovered that two layers of graphene stacked on top of one another can temporarily become as hard as diamond — and just as impenetrable — when struck by, say, a bullet. The hardening of the new material, called diamene, only happens when exactly two sheets of graphene are layered together, according to the study published in Nature Nanotechnology. When more sheets were added, the hardening effect didn’t happen.  “Previously, when we tested graphite or a single atomic layer of graphene, we would apply pressure and feel a very soft film,” explained Elisa Riedo, professor of physics at the ASRC and lead project researcher, on the research center’s website. “But when the graphite film was exactly two-layers thick, all of a sudden we realized that the material under pressure was becoming extremely hard and as stiff, or stiffer, than bulk diamond.” Future Warfare The team’s research could be used for more than just armor, and may be used in the development of wear-resistant protective coatings as well. This isn’t the first attempt to lighten protective armor. In May 2017, Cadet 1st Class Hayley Weir and her professor Ryan Burke at the Air Force Academy created a substance that could stop bullets fired at close range, and could be used to make lightweight armor. It will be interesting to see how this impacts the future of warfare. Soldiers wearing lightweight armor that makes them almost impervious to bullets would likely cause militaries around the world to shift to other weaponry. We know the United States is looking at laser weapons, while Russia is reportedly designing a missile controlled by artificial intelligence. Ironically, effective bullet-proof armor won’t count for much if no one’s using bullets anymore.

https://www.google.com/amp/s/futurism.com/two-layers-graphene-make-diamond-hard-armor-stop-bullet/amp/#ampshare=https://futurism.com/two-layers-graphene-make-diamond-hard-armor-stop-bullet/

Infinity Electrostatics Announces New Technology for Producing Graphene

PALO ALTO, Calif., Dec. 21, 2017 (GLOBE NEWSWIRE) -- @InfinityElectrostatics LLC, a technology development firm for additive #3Dprinting, is pleased to announce a new method of production for #graphene. Graphene is the new environmentally friendly, transparent, go-to material that has incredible opportunities for super capacitors, solar cells, semi-conductors, is impervious to water, temperature changes, and can self-repair its bonds. It is 1000 times more conductive than Copper, 200 times stronger than steel, and doesn’t have the limitations of Silicon. Graphene can be used in bioengineering, optics, composites, energy storage, photovoltaics, and even as ultrafiltration, as a thin membrane for seawater desalination. It can be laser printed. Using quantum dots, band gaps can be generated to utilize in the semiconductor industry. The limitation of graphene development and use in industry, is its production. Infinity has developed a method, using a Spinning Disc Reactor, to provide a low cost method of producing graphene, using sonification and shearing. Infinity Electrostatics LLC develops and markets innovative additive 3D printing technology. Emphasis is placed on developing new technology to reduce additive build time, and producing a superior 3D printed product, maximizing efficiency of powder distribution, and reducing additive layer binding time. Industries served include laser engraver and fiber cutting machine manufacturers, additive 3D metal printing, and electrostatics. Please visit http://www.infinityelectrostatics.com for more information. Contact: G. Giese | CEO | Infinity Electrostatics LLC |  TEL (650) 542-8538   greg@infinityelectrostatics.com

http://markets.businessinsider.com/news/stocks/Infinity-Electrostatics-Announces-New-Technology-for-Producing-Graphene-1011760159

Monday, December 18, 2017

Chipmakers Look To New Materials

#Graphene, the wonder material rediscovered in 2004, and a host of other two-dimensional materials are gaining ground in manufacturing #semiconductors as silicon’s usefulness begins to fade. And while there are a number of compounds in use already, such as #galliumarsenide, #galliumnitride, and #siliconcarbide, those materials generally are being confined to specific niche applications. #Transitionmetaldichalcogenides ( #TMDCs), a class of 2D materials derived from basic elements—principally #tellurium, #selenium, #sulfur, and #oxygen—are being widely explored by researchers for their use as semiconducting materials. These include molybdenum disulfide (MOS2), molybdenum diselenide (MOSe2), molybdenum ditelluride and molybdenum telluride (MOTe2), tungsten disulfide (WS2), and tungsten diselenide (WSe2), which are among the materials being tested for use in chips. TMDCs are functioning as semiconductors in conjunction with graphene (a carbon allotrope) as an electrical conductor, and monolayer hexagonal boron nitride (also known as white graphene) as an electrical insulator. These materials can be used in electronic devices, energy and harvesting devices, and for flexible and transparent substrates. TMDCs are also being combined with silicon substrates, to give good old silicon a few more years to shine. And 2D materials can be printed on paper substrates, opening up a whole new field of paper-based devices, such as sensors. Monolayer graphene is highly conductive – overly so. The 2D carbon material has no bandgap, however, limiting its use in integrated circuits. Bilayer graphene, in contast, can be tuned to have a bandgap. Bilayer graphene films on silicon carbide can be better controlled, researchers have found. Trilayer graphene can also be tunable to produce a bandgap, needed to develop field-effect transistors in a semiconductor device

https://semiengineering.com/chipmakers-look-to-new-materials/

Research into cleaner batteries backed by $3.45M government grant

IN SUMMARY @Swinburne research into #grapheneoxide has been backed by a $3.45 million grant. Funding comes as part of the Cooperative Research Centres Projects (CRC-P) funds commissioned by the Australian Government. Research is a collaboration between Swinburne, Flinders University and industry leaders First Graphite and Kremford. Swinburne researchers have secured $3.45 million in funding to continue work on a project investigating energy storage alternatives using graphene oxide. Graphene oxide is the lightest, strongest and most electrically conductive material to be discovered and has the potential to revolutionise manufacturing across all industries. Researchers will receive the grant as part of the Cooperative Research Centres Projects (CRC-P) funds commissioned by the Australian Government. The @Swinburne Centre for #MicroPhotonics is collaborating with @Flinders University as well as industry leaders @FirstGraphene Ltd and @KremfordPty Ltd. The ‘High performance energy storage alternative to lithium ion batteries’ project is working towards creating commercially viable and chemical-free batteries using #graphene. This involves the production of a graphene oxide-based supercapacitor, which will be the world’s first alternative to lithium ion batteries (LIB). Swinburne Research Leader Professor Baohua Jia leads a team developing the Bolt Electricity Storage Technology (BEST) battery – a graphene oxide-based supercapacitor offering high performance and low-cost energy storage. “The battery is very thin, it is carbon based and it is environmentally friendly,” Professor Jia says. “We filed a patent on the technology last year.” However, unreliable quality and a lack of manufacturing processes has prevented graphene from becoming industry standard. In October, Swinburne created the world’s first graphene certification centre as part of its revolutionary research into graphene and digital manufacturing processes. The primary focus of the centre is to develop graphene to the point where it will meet strict quality guidelines and be ready for use in large-scale manufacturing. Director of the Manufacturing Futures Research Institute at Swinburne, Professor Bronwyn Fox, says Swinburne is at the forefront of graphene research. “We’re doing everything here at Swinburne from the very fundamental research right through to the translational industrial research in Graphene,” Professor Fox says. “Smart materials use graphene coated fibres and fabrics that will sense and communicate data.” Graphene is believed to be central to the next industrial revolution, industry 4.0, which will see the digital transformation of manufacturing processes. The project received the funding as part of the fourth round of grants awarded under the CRC-P stream of the overarching CRC Program. First Graphite managing director Craig McGuckin believes the recent funding is testament to the worth of the project. “The success in the fourth round of the CRC-P funding demonstrates the high regard in which the company’s research efforts are held,” Mr McGuckin told Science Meets Business. “It also shows the robustness of the programs designed by FGR’s university partners.”

http://www.swinburne.edu.au/news/latest-news/2017/12/research-into-cleaner-batteries-backed-by-345m-government-grant.php

Sunday, December 10, 2017

Graphene running shoes will hit the market next year

Running shoes and graphene were made for each other. One is always in search of the latest gimmick and the other has produced some of the most stunning in recent memory. The University of Manchester, long a leading force in research surrounding the one-atom-thick material, has teamed up with British sportswear brand inov-8 to bring #graphene to footwear. Unlike most of the research we’ve seen around science’s recent favorite miracle material, these things are headed to the market in our lifetimes — a seemingly miracle in and of itself. In fact, they’re due out next year, priced at a steep, but not completely unreasonable, £140 and £150 (around $200 on the high end). There are no miracles present in this particular implementation, but the graphene should make the kicks more flexible and a hell of a lot stronger than traditional running shoes. Graphene, after all, is the thinnest material around and about 200x stronger than steel. The researchers heated it and added tiny particles to the shoes’ soles. “When added to the rubber used in inov-8’s G-Series shoes, graphene imparts all its properties, including its strength,” university reader Dr. Aravind Vijayaraghavan said in a statement tied to the shoes. “Our unique formulation makes these outsoles 50-percent stronger, 50-percent more stretchy and 50-percent more resistant to wear than the corresponding industry standard rubber without graphene.” At the very least, it’s a pretty solid way of standing out in a clothing category that’s increasingly fixated on innovation, from Adidas’s 3D-printed sneakers to Nike’s self-tying ones. Manchester researchers have long discussed graphene’s potential role in wearables. In addition to all of the aforementioned super powers, it’s also transparent and more conductive than copper — all great potential traits for the next generation of electronics. The school recently demonstrated the ability to print the material for sensors, as well, meaning that these sneakers are likely just the start of something much bigger.
https://www.google.com/amp/s/techcrunch.com/2017/12/09/graphene-running-shoes-will-hit-the-market-next-year/amp/#ampshare=https://techcrunch.com/2017/12/09/graphene-running-shoes-will-hit-the-market-next-year/

Saturday, December 2, 2017

Graphene nano 'tweezers' to grab molecules developed

Scientists, including one of Indian origin, have developed tiny electronic "tweezers" using #graphene that can efficiently grab biomolecules floating in water, an advance that may lead to a handheld disease detecting system. Graphene, a material made of a single layer of carbon atoms, was discovered more than a decade ago and has enthralled researchers with its range of amazing properties that have found uses in many new applications from microelectronics to solar cells. The #graphenetweezers developed at the University of Minnesota in the US are vastly more effective at trapping particles compared to other techniques used in the past due to the fact that graphene is a single atom thick, less than one billionth of a metre. The physical principle of tweezing or trapping nanometre-scale objects, known as dielectrophoresis, has been known for a long time and is typically practiced by using a pair of metal electrodes. From the viewpoint of grabbing molecules, however, metal electrodes are very blunt. They simply lack the "sharpness" to pick up and control nanometre-scale objects. "Graphene is the thinnest material ever discovered, and it is this property that allows us to make these tweezers so efficient. No other material can come close," said Sang-Hyun Oh, professor at the University of Minnesota. "To build efficient electronic tweezers to grab biomolecules, basically we need to create miniaturised lightning rods and concentrate huge amount of electrical flux on the sharp tip. The edges of graphene are the sharpest lightning rods," said Oh. The team also showed that the graphene tweezers could be used for a wide range of physical and biological applications by trapping semiconductor nanocrystals, nanodiamond particles, and even DNA molecules. Normally this type of trapping would require high voltages, restricting it to a laboratory environment, but graphene tweezers can trap small DNA molecules at around one Volt, meaning that this could work on portable devices such as mobile phones. Researchers made the graphene tweezers by creating a sandwich structure where a thin insulating material call hafnium dioxide is sandwiched between a metal electrode on one side and graphene on the other. Hafnium dioxide is a material that is commonly used in today's advanced microchips. "One of the great things about graphene is it is compatible with standard processing tools in the semiconductor industry, which will make it much easier to commercialise these devices in the future," said Koester, who led the effort to fabricate the graphene devices. "Since we are the first to demonstrate such low-power trapping of biomolecules using graphene tweezers, more work still needs to be done to determine the theoretical limits for a fully optimised device," said Avijit Barik, graduate student at University of Minnesota. "For this initial demonstration, we have used sophisticated laboratory tools such as a fluorescence microscope and electronic instruments," said Barik, lead author of the study published in Nature Communications. "Our ultimate goal is to miniaturise the entire apparatus into a single microchip that is operated by a mobile phone," he said.

http://wap.business-standard.com/article/pti-stories/graphene-nano-tweezers-to-grab-molecules-developed-117120200342_1.html

Tuesday, November 28, 2017

Future smartphones could fully charge in minutes with Samsung's new battery technology

#Samsung's Advanced Institute of Technology ( #SAIT) has developed a new #batterytechnology with more capacity and extremely fast charging times. The new #graphene -based technology could charge a battery in 12 minutes, where the same capacity battery could charge in an hour with standard fast charging. It could remove the risk of ever running out of battery simply because it could be more convenient to charge your devices. @Samsung 's Advanced Institute of Technology (SAIT) announced on Tuesday that it has developed a battery technology that can fast-charge mobile devices and electric vehicles faster than ever before. For a battery that usually takes an hour to charge with current fast-charge technology, Samsung claims the new technology could fast-charge a battery in 12 minutes. Current fast charging is great, but Samsung's new battery could charge significantly faster.Antonio Villas-Boas/Business Insider The new technology includes a single layer of carbon atoms from graphite, known as graphene, which is "100 times more effective than copper in conducting electricity." It also transfers energy "140 times faster" than silicon used in current lithium technology, which makes it "an ideal material for fast charge," according to Samsung. Samsung's new battery technology might even give mobile devices and electric vehicles more battery life compared to current batteries, as they have the potential for more capacity. It's unclear how much longer these batteries would last, but the extremely fast charging would make it more convenient to top off your device when you need a charge simply because it takes less time. So if you can spare the occasional five minutes here and there for a top up, you'll be less likely to run out of battery. Electric vehicles, like those from Tesla, could charge a lot faster thanks to Samsung's new technology.Thomson Reuters The concept is exactly the same as today's fast-charging technology in smartphones, where 30 minutes of regular fast charging gets you 50% of battery charge. As its name suggests, fast charging is, indeed, faster than regular charging, which could take over two hours to fully charge a smartphone battery. This all sounds great, and Samsung has found a way to mass produce the technology at an "affordable price." But there's no mention of when, or if, Samsung would ever use its new battery technology in mobile devices and other electric devices.

http://www.businessinsider.com/samsung-graphene-smartphone-batteries-could-charge-in-minutes-2017-11

Monday, November 27, 2017

​Samsung develops 'graphene ball' to speed up battery charging

#SamsungElectronics' research arm has successfully synthesized a " #grapheneball" that can be used to make #lithiumion batteries last longer and charge faster, the company has said. @Samsung Advanced Institute of Technology ( #SAIT ) said using graphene ball material to make batteries will increase their capacity by 45 percent and increase their charging speed by five times. Current lithium-ion batteries take an hour to fully charge but this will be reduced to 12 minutes with the new tech, Samsung said. Batteries that use graphene ball can also maintain a temperature of 60 degrees Celsius that is required for use in electric cars, the company added.

http://www.zdnet.com/article/samsung-develops-graphene-ball-to-speed-up-battery-charging/

Saturday, November 25, 2017

Physicists Just Found a Loophole in Graphene That Could Unlock Clean, Limitless Energy

By all measures, #graphene shouldn't exist. The fact it does comes down to a neat loophole in physics that sees an impossible 2D sheet of atoms act like a solid 3D material. New research has delved into graphene's rippling, discovering a physical phenomenon on an atomic scale that could be exploited as a way to produce a virtually limitless supply of clean energy. The team of physicists led by researchers from the University of Arkansas didn't set out to discover a radical new way to power electronic devices. Their aim was far more humble – to simply watch how graphene shakes. We're all familiar with the gritty black carbon-based material called graphite, which is commonly combined with a ceramic material to make the so-called 'lead' in pencils. What we see as smears left by the pencil are actually stacked sheets of carbon atoms arranged in a 'chicken wire' pattern. Since these sheets aren't bonded together, they slide easily over one another. For years scientists wondered if it was possible to isolate single sheets of graphite, leaving a 2-dimensional plane of carbon 'chicken wire' to stand on its own. In 2004 a pair of physicists from the University of Manchester achieved the impossible, isolating sheets from a lump of graphite that were just an atom thick. To exist, the 2D material had to be cheating in some way, acting as a 3D material in order to provide some level of robustness. It turns out the 'loophole' was the random jiggling of atoms popping back and forth, giving the 2D sheet of graphene a handy third dimension. In other words, graphene was possible because it wasn't perfectly flat at all, but vibrated on an atomic level in such a way that its bonds didn't spontaneously unravel. To accurately measure the level of this jiggling, physicist Paul Thibado recently led a team of graduate students in a simple study. They laid sheets of graphene across a supportive copper grid and observed the changes in the atoms' positions using a scanning tunneling microscope. While they could record the bobbing of atoms in the graphene, the numbers didn't really fit any expected model. They couldn't reproduce the data they were collecting from one trial to the next. "The students felt we weren't going to learn anything useful," says Thibado, "but I wondered if we were asking too simple a question." Thibado pushed the experiment into a different direction, searching for a pattern by changing the way they looked at the data. "We separated each image into sub-images," says Thibado. "Looking at large-scale averages hid the different patterns. Each region of a single image, when viewed over time, produced a more meaningful pattern." The team quickly found the sheets of graphene were buckling in way not unlike the snapping back and forth of a bent piece of thin metal as it's twisted from the sides. Patterns of small, random fluctuations combining to form sudden, dramatic shifts are known as Lévy flights. While they've been observed in complex systems of biology and climate, this was the first time they'd been seen on an atomic scale. By measuring the rate and scale of these graphene waves, Thibado figured it might be possible to harness it as an ambient temperature power source. So long as the graphene's temperature allowed the atoms to shift around uncomfortably, it would continue to ripple and bend. Place electrodes to either side of sections of this buckling graphene, and you'd have a tiny shifting voltage. This video clip below explains the process in detail:

https://www.sciencealert.com/graphene-levy-flights-limitless-power-future-electronic-devices

Tuesday, November 7, 2017

Quantum Computing: Graphene-Based Device Theoretically Proves Existence Of Non-Abelian Anyons

Researchers from University of California, Santa Barbara, have developed a device that could prove the existence of non-Abelian anyons. These 2-dimensional quantum particles were theorized and mathematically predicted to exist but have not been synthesized till now. A study published in the journal Nature has taken the first steps toward finding conclusive evidence of the existence of non-Abelian anyons. The researchers used graphene, an atomically thin material derived from graphite, to develop “an extremely low-defect, highly tunable device in which non-Abelian anyons should be much more accessible,” said a news release published on the university website. These anyons are a type of quasiparticle that occur only in two-dimensional systems, with properties much less restricted than those of fermions and bosons. Here, when the system undergoes degeneration by exchanging two identical particles, there will be a change in state but the particles themselves will retain the same configuration. Anyons are generally classified as abelian or non-Abelian. Abelian anyons have been detected and play a major role in the fractional quantum Hall effect. Non-Abelian anyons have not been definitively detected, although this is an active area of research. In a 3D world, elementary particles can either be fermions or bosons. "The difference between these two types of 'quantum statistics' is fundamental to how matter behaves," physicist Andrea Young, author of the study said. Several fermions cannot remain in the same quantum state. This allows us to push electrons (fermion) around in semiconductors given its unique properties and also helps prevent neutron stars from collapsing, Young added. But bosons can occupy the same state and this property gives rise to pre-existing principles in physics known as the Bose-Einstein condensation and superconductivity. According to the team, if a few fermions (protons, neutrons and electrons in atoms) are combined, you can get either type but never evade the dichotomy. This means we can give combined fermions one particular charge but a contrast between opposite charges in inevitable. When the same laws are applied to a two-dimensional system, the laws of physics allow for a third possibility. This possibility was termed "anyons." These quantum particles cannot be classified as boson or fermion. There are several types of anyons. Non-Abelian anyons are those that can retain memory of their past states. This will help encode quantum information across long distances. They could be used to form the building blocks for data sharing and storing in topological quantum computers. Electrons can exist in a two-dimensional state when arranged in a very thin sheet or slab. When this happens, we can eject anyons as "quasiparticles" from the correlated states of many electrons in the sheet. When an electric potential is applied to the system, the entire system rearranges just as if an anyon had moved. The team plans on looking into the quantum Hall effect to help identify non-Abelian anyons. "In fractional quantum Hall states — a type of collective electron state observed only in two dimensional samples at very high magnetic fields — the quasiparticles are known to have precisely a rational fraction of the electron charge, implying that they are anyons," Young said in the release. "Mathematically, sure, non-Abelian statistics are allowed and even predicted for some fractional quantum Hall states," he added. The major limitation has been the fragility of the host states in the semiconductor material where they are typically studied. These anyons can only be studied when these materials are at exceptionally low temperatures and this makes it difficult to explore the unique quantum properties of individual anyons in this temperature. But the team thinks graphene holds the solution to observing an isolated non-Abelian anyon. #Graphene proves to be an ideal material to build devices to search for the elusive anyons. But, other materials surrounding the graphene sheet like the glass substrates and metallic gates introduced enough disorder to destroy any signatures of non-Abelian states, graduate student Sasha Zibrov, who assisted with the study, explained. The graphene is fine, the environment is the problem, he said. "We've finally reached a point where everything in the device is made out of two-dimensional single crystals," said Young. "So not only the graphene itself, but the dielectrics are single crystals of hexagonal boron nitride that are flat and perfect and the gates are single crystals of graphite which are flat and perfect." The flat and perfect crystals of material stacked on top of each other helped the team get a very low-disorder, extremely tunable system. "Besides realizing these states, we can tune microscopic parameters in a very well controlled way and understand what makes these states stable and what destabilizes them," Young said. The control this gave them helped the team theoretically prove the existence of non-Abelian systems. Non-Abelian systems, studied under a more convenient temperature range, give us a minute understanding of the flow of energy in quantum systems. Developing a topological quantum bit has been a long-term dream for man and non-Abelian systems could provide the answer. Non-Abelian anyons are special as they are thought to be able to process and store quantum information independent of many environmental effects, a major challenge in realizing quantum computers with traditional means. "Our experiments so far are consistent with theory, which tells us that some of the states we observed should be non-Abelian, but we still don't have an experimental smoking gun. "We'd like an experiment that actually demonstrates a phenomenon unique to non-Abelian statistics," said Young, "now that we have a material that we understand really well, there are many ways to do this — we'll see if nature cooperates!"

http://www.ibtimes.com/quantum-computing-graphene-based-device-theoretically-proves-existence-non-abelian-2611380

Tuesday, October 24, 2017

Hybrid Graphene-Carbon Nanotube Film Market : Manufactures are (Graphene Frontiers, Haydale Limited)

Global Hybrid #Graphene - @CarbonNanotube Film Market 2017 Analysis Report audits a Market Regions, Product Categories, with Sales, Business Revenue, Goods cost, Hybrid Graphene-Carbon Nanotube Film piece of the overall industry and Growth patterns, concentrating on driving Hybrid Graphene-Carbon Nanotube Film industry players, showcase size, request and supply examination, utilization volume, Forecast 2017 to 2022. The Global Hybrid Graphene-Carbon Nanotube Film report gives a thorough situation of the present and gauge Hybrid Graphene-Carbon Nanotube Film showcase procedures, improvement methodologies and development openings. Starting a discussion on the contemporary condition of Hybrid Graphene-Carbon Nanotube Film showcase, the report extra dissects the market powerful moving each area begun in it. Top Manufactures Analysis Of Hybrid Graphene-Carbon Nanotube Film : AMG Advanced Metallurgical Applied Graphene Materials Graphene Frontiers Haydale Limited
http://firstnewsservice.com/2017/10/hybrid-graphene-carbon-nanotube-film-market/

Tuesday, October 10, 2017

Funding Battle Heats Up for World’s Strongest Material

The global race to exploit the potential of the strongest known material, a substance called #graphene, just intensified as two British manufacturers unveiled competing plans to raise funds to bring their products to market. @AppliedGraphene Materials Plc raised about 9 million pounds ($12 million) from a placement of shares with existing investors, while @HaydaleGraphene Industries Plc is looking for 6 million pounds, the U.K.-based companies said Tuesday in separate statements. Graphene, a material said to be 200 times stronger than steel and yet flexible, has gradually captured the imagination of investors since its isolation in 2004 at the University of Manchester. Initial hype about its potential uses in areas as diverse as spinal implants, smartphones and aerospace parts was damped by the challenges of increasing production at a viable cost. More recently, graphene development hot-spots have emerged in China, Japan, Korea and the U.S., where startups have applied for patents. Applied Graphene said it will use the funds it raises to work with customers interested in a product called Structural Ink, which can be used to reinforce parts of aircraft wings made from composite materials. Haydale plans to channel money into sales opportunities and bolstering its product portfolio, according to its statement. Momentum Building “Our revenue is starting to come through but it’s not substantial enough yet to offset the costs in the business,” Applied Graphene Chief Executive Officer Jon Mabbitt said in a phone interview, adding that its number of graphene-related projects has quadrupled to about 100 during the past year. “The momentum is building and the U.K. is doing pretty well." Applied Graphene has little competition in its specialty of using the material in coatings and composites, according to the CEO. The company is working with about 50 manufacturers including Sherwin-Williams Co. on displacing traditional additives like chromates, phosphates and glass flakes used by coatings industry.

https://www.bloomberg.com/news/articles/2017-10-10/race-for-strongest-material-heats-up-as-developers-seek-funds

Tuesday, September 5, 2017

Graphene Nano Platelets Electronics Market Size 2017-2022 Grafoid, Graphenea, Galaxy Microsystems

Recently published a detailed market study on the " #Graphene #NanoPlatelets #Electronics Market" across the global, regional and country level. The report on the global Graphene Nano Platelets Electronics market uses the top-down and bottom-up approaches to define, analyze, and describe the Graphene Nano Platelets Electronics market trends for the next five years And Graphene Nano Platelets Electronics market Size and Share. The Graphene Nano Platelets Electronics market report further provides production, capacity, Graphene Nano Platelets Electronics market price per region, gross margin, Graphene Nano Platelets Electronics production cost, for all major regions and countries listed in Graphene Nano Platelets Electronics report.  Get Sample Copy Of Graphene Nano Platelets Electronics Market 2017: bit.ly/2eFxy7X Graphene Nano Platelets Electronics market studies the competitive landscape view of the industry. The Graphene Nano Platelets Electronics report also includes development plans and policies along with manufacturing processes. The major regions involved in Graphene Nano Platelets Electronics Market are (United States, EU, China, and Japan). Leading Manufacturers Analysis in Global Graphene Nano Platelets Electronics Market 2017: #GrapheneFrontiers #GrapheneLaboratories #GrapheneSquare #GrafoidGraphenea #SkeletonTechnologies #SamsungElectronics #IBMCorporation #SanDiskCorporation #GalaxyMicrosystems

http://www.openpr.com/news/697823/Graphene-Nano-Platelets-Electronics-Market-Size-2017-2022-Grafoid-Graphenea-Galaxy-Microsystems.html

Monday, September 4, 2017

Scientists help spiders spin stronger silks Press Trust of India | 

Scientists have found a way to make spiders spin stronger silks using #carbonnanotubes or #graphene, paving the way for high-strength materials that could be used to make improved parachutes and body armours. Researchers, led by Professor Nicola Pugno at the University of Trento in Italy, succeeded in having their spiders produce silk with up to three times the strength and ten times the toughness of the regular material. The discovery, published in the journal 2D Materials, could pave the way for a new class of bionicomposites, with a wide variety of uses. "Humans have used silkworm silks widely for thousands of years, but recently research has focussed on spider silk, as it has extremely promising mechanical properties," said Pugno. "It is among the best spun polymer fibres in terms of tensile strength, ultimate strain, and especially toughness, even when compared to synthetic fibres such as Kevlar," he said. "We already know that there are biominerals present in in the protein matrices and hard tissues of insects, which gives them high strength and hardness in their jaws, mandibles and teeth, for example," Pugno said. "So our study looked at whether spider silk's properties could be 'enhanced' by artificially incorporating various different nanomaterials into the silk's biological protein structures," he said. To do this, the team exposed three different spider species to water dispersions containing carbon nanotubes or graphene. After collecting the spiders' silk, the team tested its tensile strength and toughness. The strongest silk the spiders spun had a fracture strength up to 5.4 gigapascals (GPa), and a toughness modulus up to 1,570 joules per gramme (J/g). Normal spider silk, by comparison, has a fracture strength of around 1.5 GPa and a toughness modulus of around 150 J/g, researchers said. "This is the highest fibre toughness discovered to date, and a strength comparable to that of the strongest carbon fibres or limpet teeth," said Pugno. "Our results are a proof of concept that paves the way to exploiting the naturally efficient spider spinning process to produce reinforced bionic silk fibres, thus further improving one of the most promising strong materials," he said. "These silks' high toughness and resistance to ultimate strain could have applications such as parachutes," he added.

http://wap.business-standard.com/article/pti-stories/scientists-help-spiders-spin-stronger-silks-117090400754_1.html

Monday, August 21, 2017

Graphene-Based Supercapacitors Market Key Players, Product and Production Information Analysis and Forecast To 2022

#Graphene -Based #Supercapacitors Market delivers detailed analysis, forecasts and discussion of trending market facts, market size & share, market overview estimations of Graphene-Based Supercapacitors market. The reports enlighten the user with various applications, product type, end user analysis of Graphene-Based Supercapacitors market. Moreover, the Graphene-Based Supercapacitors market report helps to understand the growth aspects, utilization ratio, supply and demand analysis, manufacturing capacity and raw material sources analysis during the forecast period 2017 to 2022. Top Key Vendors of #Graphene -Based #Supercapacitors Market are: #NEC, #Panasonic , #Honda, #Hitachi, #Maxell

http://newshawktime.com/graphene-based-supercapacitors-market-key-players-product-and-production-information-analysis-and-forecast-to-2022/