Patent · US Expired

Low work function material

US6885022B2 · kind B2 · utility

3Cited by

20References

12Claims

0Family size

Assignee

SI Diamond Technology, Inc. · US

Inventors

Zvi Yaniv · Austin, US
Richard Lee Fink · Austin, US
Igor Pavlovsky · Austin, US

Key dates

Filing date	Dec 5, 2001
Grant date	Apr 26, 2005
Priority date	—
Expiry date	Dec 31, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/221
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A cathode includes a carbon nanotube layer, which is optimized with a low work function material, such as an alkali. The inclusion of the alkali material improves the field emission properties of the carbon nanotube layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.