Multiple Ink Nanolithography: Toward a Multiple-Pen Nano-Plotter

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Science  15 Oct 1999:
Vol. 286, Issue 5439, pp. 523-525
DOI: 10.1126/science.286.5439.523

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The formation of intricate nanostructures will require the ability to maintain surface registry during several patterning steps. A scanning probe method, dip-pen nanolithography (DPN), can be used to pattern monolayers of different organic molecules down to a 5-nanometer separation. An “overwriting” capability of DPN allows one nanostructure to be generated and the areas surrounding that nanostructure to be filled in with a second type of “ink.”

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