Application of vitreous and graphitic large-area carbon surfaces as field-emission cathodes

Author

Hunt, Charles E.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., USA

fYear

2004

fDate

6-10 Sept. 2004

Firstpage

41

Lastpage

43

Abstract

Numerous carbon bulk or thin-film materials have been used as field-emission cathodes. Most of these can be made into large-area and high-current field-emission cathodes without the use of complex IC fabrication techniques. Some of these exhibit low-extraction field, low work-function, high ruggedness, chemical stability, uniform emission, and low-cost manufacturability. A comparison of all of these materials was presented. Two viable cathode materials, reticulated vitreous carbon (RVC) and graphite paste are examined here and compared.

Keywords

cathodes; electron field emission; graphite; IC fabrication; carbon bulk; chemical stability; graphite paste; graphitic large-area carbon surfaces; high-current field-emission cathodes; low work-function; low-extraction field; reticulated vitreous carbon; thin-film materials; uniform emission; vitreous large-area carbon surfaces; Bonding; Carbon dioxide; Cathodes; Chemicals; Diamond-like carbon; Organic materials; Semiconductor materials; Space technology; Surface cracks; Surface morphology;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International

Print_ISBN

0-7803-8437-7

Type

conf

DOI

10.1109/IVESC.2004.1413948

Filename

1413948