查看完整版本: 【Nature Nanotechnology】Deposition of reduced graphene oxide over large areas

【Nature Nanotechnology】Deposition of reduced graphene oxide over large areas

[b][color=DarkGreen]Various researchers are attempting to integrate graphene into devices for applications. A new study reports a solution-based method that allows uniform and controllable deposition of reduced graphene oxide thin films with thicknesses ranging from a single monolayer to several layers over large areas on a variety of substrates. The sheet resistance of the thin films could be tuned over six orders of magnitude and the transparencies from 60 to 95%. This could be a useful technique to translate the properties of graphene into technologically useful applications.[/color][/b]i{BM
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9@R {*g8B"} [color=Blue][size=3][b]Nature Nanotechnology [/b][/size][/color]Published online: 6 April 2008 | doi:10.1038/nnano.2008.83
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7NhxFO+b_n [color=DarkRed][size=4][b]Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material[/b][/size][/color]
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E#x K0d.f2j Goki Eda, Giovanni Fanchini  &  Manish Chhowalla
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The integration of novel materials such as single-walled carbon nanotubes and nanowires into devices has been challenging, but developments in transfer printing and solution-based methods now allow these materials to be incorporated into large-area electronics. Similar efforts are now being devoted to making the integration of graphene into devices technologically feasible. Here, we report a solution-based method that allows uniform and controllable deposition of reduced graphene oxide thin films with thicknesses ranging from a single monolayer to several layers over large areas. The opto-electronic properties can thus be tuned over several orders of magnitude, making them potentially useful for flexible and transparent semiconductors or semi-metals. The thinnest films exhibit graphene-like ambipolar transistor characteristics, whereas thicker films behave as graphite-like semi-metals. Collectively, our deposition method could represent a route for translating the interesting fundamental properties of graphene into technologically viable devices.%u^'`n a
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[url=http://www.nature.com/nnano/journal/vaop/ncurrent/abs/nnano.2008.83.html]http://www.nature.com/nnano/jour ... /nnano.2008.83.html[/url]ABBc4I2xLp

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