Nanoscale patterning of flat carbon surfaces by scanning probe lithography and electrochemistry |
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Authors: | Brooksby Paula A Downard Alison J |
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Institution: | MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. |
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Abstract: | We report the formation of carbon surfaces patterned at the nanoscale with organic functionalities. Thin (<10 nm) films are covalently grafted to the surface via the electrochemical reduction of aryl diazonium salts. Areas of the film are removed with an AFM tip, and a second modifier is electrochemically grafted to the exposed surface. The pattern can incorporate different chemical functionalities, or alternatively topographical patterns can be assembled, where the same functionality is present throughout the pattern. |
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