Electron emission source based on graphene layer and method for making the same
US11437213B2 · kind B2 · utility
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Key dates
| Filing date | Jun 12, 2020 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Jun 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30461
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron emission source is provided. The electron emission source includes a first electrode, an insulating layer, and a second electrode. The first electrode, the insulating layer, and the second electrode are successively stacked with each other. the second electrode is a graphene layer, and the graphene layer is an electron emission end to emit electron. A thickness of the graphene layer ranges from about 0.1 nanometers to about 50 nanometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.