Field emission device having nanostructured emitters
US5726524A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | May 31, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/3042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric field emission device includes an electrode that includes a layer having a dense array of discrete, solid microstructures disposed on at least a portion of one or more surfaces of a substrate, the microstructures having an areal number density of greater than 10.sup.7 /cm.sup.2, the microstructures being individually conformally overcoated with one or more layers of an electron emitting material, the overcoated electron emitting material being disposed on at least a portion of the microstructures and have a surface morphology which is nanoscopically rough. A method for preparing the electrode used in the invention is discussed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.