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26-GHz Graphene Transistor

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YORKTOWN HEIGHTS, N.Y., Dec. 23, 2008 – IBM scientists from the company's T.J. Waston Research Center have demonstrated the operation of graphene field-effect transistors at gigahertz (GHz) frequencies. Graphene, a special form of graphite, consists of a single layer of carbon atoms packed in honeycomb lattice, similar to an atomic-scale chicken wire. With a top gate design and a gate length of 150 nm, the team has achieved a cutoff frequency of 26 GHz for graphene transistors, the highest reported so far using this nonsilicon electronic material. Graphene has attracted worldwide attention and activities because its unusual...Read full article

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    Published: December 2008
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    aphene field-effect transistorsaphiteBasic Scienceelectric materialsGHz for graphene transistorsIBMJ. Waston Research CenternanoNews & Featuresnoscale graphene field-effect transistorson-silicon electronic materialphotonicsRArbon atomsrbon Electronics for RF ApplicationsRPA

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