Field emission electron source having carbon nanotube
US7579764B2 · kind B2 · utility
6Cited by
1References
8Claims
0Family size
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Key dates
| Filing date | Sep 1, 2006 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jul 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field emission electron source (10) includes a conductive base (12), a carbon nanotube (14), and a modifying layer (16). The conductive base includes a top (122). One end (142) of the carbon nanotube is electrically connected with the top of the conductive base. The other end (144) of the carbon nanotube extends outwardly away from the top of the conductive base. The modifying layer (16) is uniformly distributed and coated onto at least the surface of the other end of the carbon nanotube. The work function of the modifying layer is lower than that of the carbon nanotube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.