AFM local oxidation nanolithography of graphene

Details AFM local oxidation nanolithography of graphene AFM local oxidation nanolithography of graphene

2008-07-18

arxiv.org/abs/0807.2886v2

Applied Physics Letters 93, 093107(2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1063/1.2976429

We demonstrate the local oxidation nanopatterning of graphene films by an atomic force microscope. The technique provides a method to form insulating trenches in graphene flakes and to fabricate nanodevices with sub-nm precision. We demonstrate fabrication of a 25-nm-wide nanoribbon and sub-micron size nanoring from a graphene flake. We also found that we can write either trenches or bumps on the graphene surface depending on the lithography conditions. We attribute the bumps to partial oxidation of the surface and incorporation of oxygen into the graphene lattice.

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