Field emission devices made with laser and/or plasma treated carbon nanotube mats, films or inks
US7880376B2 · kind B2 · utility
32Cited by
15References
14Claims
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Key dates
| Filing date | Aug 20, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Aug 20, 2027 |
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.