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Graphene Semiconductors David Brown Student ECE Department University of Utah October 29, 2009 Overview • What is graphene? • Advantages of graphene • Problems Graphene • Sheet of pure carbon rings one atom thick • Made by peeling layers from graphite [1] Advantages of Graphene • • • • Conducts electrons 100 times easier than silicon Two dimensional Easier to control electron flow Allows for smaller devices [2] Problems • Not easily produced • Does not switch like other semiconductors • Just beginning to be studied [3] Possible Uses • Coating for LCD screens • Computer chips • Transistors • Capacitors Contact Information David Brown Student ECE Department University of Utah [email protected] References: [1], [2] http://discovermagazine.com/2009/jun/04-life-after-silicon/?searchterm=graphene, accessed on 09/07/2009. [3] http://blogs.discovermagazine.com/80beats/2009/04/16/unzip-a-carbon-nanotube- get-ananoribbon-revolutionize-electronics/, accessed on 09/07/2009.
