Electron emission from single-walled carbon nanotubes with sharpened bundles
Journal Article
·
· Journal of Applied Physics
We investigated the influence of grinding as a pretreatment prior to the emitter film formation of single-walled carbon nanotubes (SWNTs) on the field emission and the geometric properties of SWNTs. Field emission from emitter films composed of ground SWNTs was found to be dramatically enhanced as well as to be homogeneous and stable, compared with that from emitter films composed of unground SWNTs. Transmission electron microscopy observations showed that several SWNTs protrude from the ends of ground SWNT bundles. The improved emission current is attributed to the large field enhancement at the sharpened ends of the SWNT bundles. {copyright} 2001 American Institute of Physics.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204239
- Journal Information:
- Journal of Applied Physics, Vol. 89, Issue 12; Other Information: DOI: 10.1063/1.1372659; Othernumber: JAPIAU000089000012008141000001; 007113JAP; PBD: 15 Jun 2001; ISSN 0021-8979
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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