| 摘要 |
Systems and methods are provided for controllably growing nanostructures, such as nanotubes, on a substrate, thus enabling the length and/or orientation of the nanostructures to be selectively controlled. A substrate's surface is selectively patterned to include topological structures, such as a blocking structure protruding from the surface and/or a recess in the surface, for influencing the nanostructure growth along the surface from a catalyst. The topological structures can be located to control the length and/or orientation of the nanostructures differently on different areas of the substrate. The topological structures may be of a substance that chemically inhibits growth of the nanostructure.
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