Method of irradiating field emission cathode having nanotubes
US7341498B2 · kind B2 · utility
3Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2004 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Oct 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30469
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Field emission devices comprising carbon nanotube mats which have been treated with laser or plasma are provided. Mats are formed from carbon nanotubes, also known as carbon fibrils, which are vermicular carbon deposits having diameters of less than about one micron. The carbon nanotube mats are then subjected to laser or plasma treatment. The treated carbon nanotube mat results in improved field emission performance as either a field emission cathode or as part of a field emission device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.