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Technology update

Sep 8, 2008

STM cuts graphene to size

Researchers in Hungary and Belgium have developed the most precise nanolithography technique ever. Levente Tapasztó of the Research Institute for Technical Physics and Materials Science in Budapest and colleagues have already used the method, which employs the tip of a scanning tunnelling microscope, to pattern tiny nanostructures (ribbons) into a graphene sheet. The technique makes it possible to build entire working circuits and avoids the disadvantages of "bottom up" methods that rely on assembling individual building blocks, such as carbon nanotubes.

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