Field emission from carbon nanotubes has been measured. Typical values are 100-1000 nA at a nanotube bias of $-$80V. The amount of field emission is found to depend strongly on the state of the nanotube tip. This should serve in future work as a good indicator of tip condition. It is believed that open tip nanotubes unravel at their ends while field emitting to form a carbon chain. An atomic chain being the ultimate geometry for a field emitter, nanotube tips may have applications for monoenergetic electron sources, electron microscope field emitters, and electron holography.
| Identifer | oai:union.ndltd.org:RICE/oai:scholarship.rice.edu:1911/14098 |
| Date | January 1996 |
| Creators | Hafner, Jason Howard |
| Source Sets | Rice University |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | application/pdf |
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