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12 OCT 2009


Tubular bells and whistles: Building additional functionality into nanotubes by controlled synthesis may enable novel architectures and enhanced (opto)electronic devices. The composition of each wall in novel, hollow, crystalline silicon nanotubes (tube-in-tube and wire-in-tube nanostructures) can be independently defined, and the interwall distance and wall thickness can be controlled (picture: triple-walled nanotube and corresponding TEM images).

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