| 摘要 |
<p>The present invention includes several nanotubes (30) which can be made using catalyst islands (45) disposed on a substrate (42) (e.g. silicon, alumina, or quartz) or on the free end (48) of an atomic force microscope cantilever (42). The catalyst islands (45) are capable of catalyzing the growth of carbon nanotubes (30) from carbon containing gases (e.g. methane). The present invention includes an island (45) of catalyst material (such as Fe O) disposed on the substrate (42) with a carbon nanotube (30) extending from the island (45). Also included in the present invention is a pair of islands (29) with a nanotube (30a) extending between the islands (29), electrically connecting them. Conductive metal lines (34) connected to the islands (29) (which may be a few microns on a side) allows for external circuitry to connect to the nanotube (30a). Such a structure can be used in many different electronic and microelectromechanical devices. Also, the present invention includes a catalyst particle (45) disposed on the free end (48) of an AFM cantilever (42) and having a nanotube (30) extending from the particle (45). The nanotube (30) can be used as the scanning tip of the AFM as is known in the art.</p> |
