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graphene News
Sizing Up Graphene
BERKELEY, Calif., June 9, 2008 -- The extraordinary properties of graphene have reportedly been measured with an accuracy never before achieved, confirming many of its strangest features but revealing significant departures from theoretical predictions. Results of research at the Department of Energy’s Advanced Light Source (ALS), from DOE’s Lawrence Berkeley National Laboratory and the University of California at San Diego (UCSD) point to novel practical applications such as tunable optical modulators for...
Graphene-based LCDs Devised
MANCHESTER, England, May 2, 2008 -- Highly transparent and highly conductive ultrathin films have been produced by dissolving chunks of graphite then spraying the resulting graphene onto a glass surface.Researchers at the University of Manchester in England used graphene, which is...
Transistor is 1 Atom Thick
MANCHESTER, England, April 21, 2008 -- Graphene, a single-atom-thick sheet of graphite that combines aspects of semiconductors and metals, has been carved into tiny electronic circuits containing individual transistors not much bigger than a molecule. Kostya Novoselov, PhD, and professor...
Graphene In, Silicon Out?
COLLEGE PARK, Md., March 24, 2008 -- Graphene's ability to conduct electricity has been found to be higher than any other known material at room temperature. The research shows that graphene, a single-atom-thick sheet of graphite that combines aspects of semiconductors and metals, is a...
Unruly Electrons Quieted
YORKTOWN HEIGHTS, N.Y., March 10, 2008 -- Noise in graphene-based semiconductor devices can, in fact, be suppressed, it has been discovered. IBM scientists said they have found a way to suppress unwanted interference of electrical signals created when shrinking graphene -- a...
Spotting Very Thin Graphite Layers
Oct 1, 2007 — Researchers are focusing on graphite monolayers, called graphene, because of their electrical and optical properties. In their quest to use graphene to build devices, however, they confront a basic problem. The simplest technique for producing the...
Microprocessing Technique Yields Ultrathin Membranes
STUTTGART, Germany, and MANCHESTER, England, March 5, 2007 -- Using a fabrication method for producing microprocessors, scientists have created what they said is the thinnest material that will ever exist: Carbon membranes that are only one atom thick. The membrane may allow them to examine individual...
Quantum Hall Effect Observed at Room Temperature
TALLAHASSEE, Fla., & NIJMEGEN, Netherlands, Feb. 20, 2007 -- The world's most powerful magnets have given an international research team a first-time look at the quantum Hall effect at room temperature. A better understanding of the quantum world can help scientists develop better ultrasmall electrical...
Graphene Discovery Leads to Top Physics Prize
MANCHESTER, England, Oct. 23, 2006 -- A discovery that could lead to computers being made from one-atom-thick sheets of carbon has netted a British scientist one of England's top physics prizes. Professor Andre Geim of the University of Manchester School of Physics and Astronomy has...
Scientists Turn Graphite into Graphene
EVANSTON, Ill., July 24, 2006 -- Researchers have developed a way to turn graphite into graphene, one-atom-thick sheets of carbon that can be mixed into other materials such as glass and ceramics to manipulate properties such as strength and thermal conductivity. The method,...
Graphene Provides Foundation for New Electronics
ATLANTA, April 19, 2006 -- A study of how electrons behave in circuitry made from ultrathin layers of graphite – known as graphene – suggests the material could provide the foundation for a new generation of nanometer-scale devices that manipulate electrons as waves, much...
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