Latest Graphene nanoribbons Stories
Scientists have made a breakthrough toward creating nanocircuitry on graphene, widely regarded as the most promising candidate to replace silicon as the building block of transistors. They have devised a simple and quick one-step process based on thermochemical nanolithography (TCNL) for creating nanowires, tuning the electronic properties of reduced graphene oxide on the nanoscale and thereby allowing it to switch from being an insulating material to a conducting material.The technique works...
Can graphene"”a newly discovered form of pure carbon that may one day replace the silicon in computers, televisions, mobile phones and other common electronic devices"”be made to bend, twist and roll?Physicists at UC San Diego and Boston University think so. In a paper published in the journal Physical Review B, the scientists say the propensity of graphene"”a single layer of carbon atoms arranged in a honeycomb lattice"” to stick to itself and form carbon "nanoscrolls" could be...
Super-thin material advances toward next generation applicationsThe single-atom thick material graphene maintains its high thermal conductivity when supported by a substrate, a critical step to advancing the material from a laboratory phenomenon to a useful component in a range of nano-electronic devices, researchers report in the April 9 issue of the journal Science.The team of engineers and theoretical physicists from the University of Texas at Austin, Boston College, and France's...
YORKTOWN HEIGHTS, N.Y., Feb. 5 /PRNewswire-FirstCall/ -- In a just-published paper in the magazine Science, IBM (NYSE: IBM) researchers demonstrated a radio-frequency graphene transistor with the highest cut-off frequency achieved so far for any graphene device - 100 billion cycles/second (100 GigaHertz). (Photo: http://www.newscom.com/cgi-bin/prnh/20100205/NY50316 ) (Logo: http://www.newscom.com/cgi-bin/prnh/20090416/IBMLOGO ) This accomplishment is a key milestone for the Carbon...
PTB has for the first time made graphene visible on gallium arsenide "“ A successful combination of two unique electronic materialsIt is the marriage of two top candidates for the electronics of the future, both eccentric and extremely interesting: Graphene, one of the partners, is an extremely thin fellow and besides, very young. Not until 2004 was it possible to specifically produce and investigate the single layer of carbon atoms. Its electronic properties are remarkable, because, among...
Study is first to experimentally quantify thermal contraction of grapheneGraphene is nature's thinnest elastic material and displays exceptional mechanical and electronic properties. Its one-atom thickness, planar geometry, high current-carrying capacity and thermal conductivity make it ideally suited for further miniaturizing electronics through ultra-small devices and components for semiconductor circuits and computers.But one of graphene's intrinsic features is ripples, similar to those...
Engineers at Ohio State University are developing a technique for mass producing computer chips made from the same material found in pencils.Experts believe that graphene -- the sheet-like form of carbon found in graphite pencils -- holds the key to smaller, faster electronics. It might also deliver quantum mechanical effects that could enable new kinds of electronics.Until now, most researchers could only create tiny graphene devices one at a time, and only on traditional silicon oxide...
U.S. scientists say they have developed a new process for mass producing the nanomaterial graphene in large quantities. Graphene -- essential in nanotechnology -- is created when graphite is reduced to a one-atom-thick sheet. It is among the strongest materials known and has an attractive array of benefits, the scientists said. UCLA researchers from the California NanoSystems Institute, led by Professors Yang Yang and Richard Kaner, have developed a method of placing graphite oxide paper...
