Field emission element having carbon nanotube and manufacturing method thereof
US7781950B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 22, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Nov 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30469
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field emission element includes one supporting wire and at least one field emission layer coated or otherwise formed on an outer surface of the supporting wire. Each field emission layer includes a plurality of carbon nanotubes (CNTs) and is selected from a group consisting of CNT-polymer composites, CNT-glass composites and single-layer/multi-layer CNT films. A method for manufacturing the described field emission element is also provided. The method includes the steps of: (a) providing one supporting wire; (b) forming at least one field emission layer on an outer surface of the supporting wire; and (c) cutting the supporting wire, after forming the at least one field emission layer thereon, according to a predetermined length and then treating the at least one field emission layer on the supporting wire to form the field emission element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.