A technique for positioning single-walled carbon nanotubes (SWNT) at a specific location on a substrate has been developed. Self-assembled monolayers were used in conjunction with electron-beam lithography to produce patterned regions of --NH2 terminated organosilanes. SWNTs adhere to the --NH2 terminated patterns, allowing these positioned tubes to be electrically contacted with macroscopic gold leads. I-V Characteristics were measured for both annealed and nonannealed SWNTs contacted in this fashion. The lithographic technique works extremely well with nonannealed nanotubes; however, such tubes exhibit highly insulating electrical characteristics. Conversely SWNTs annealed at 1100°C for 30 minutes have electrical characteristics in agreement with predictions, but are not attracted to the --NH 2 terminated patterns.
| Identifer | oai:union.ndltd.org:RICE/oai:scholarship.rice.edu:1911/17331 |
| Date | January 2000 |
| Creators | Cox, Michael Ellis |
| Contributors | Rimberg, A. J. |
| Source Sets | Rice University |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | 56 p., application/pdf |
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