Fabrication of uniform carbon nanotube field emitters and application to vacuum devices

Author

Lee, Naesung

Author_Institution

Fac. of Nanotechnol. & Adv. Mater. Eng., Sejong Univ., Seoul, South Korea

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

2

Abstract

Narrow length distribution of raw CNTs, used for preparing the CNT paste, resulted in uniform heights of standing CNT emitters in dots, consequently giving rise to high emission uniformity over an area. Upon introducing a small amount of O₃ during FE, long, Joule-heated CNTs were selectively trimmed in a way that reduced not only the overall heights of CNTs but also their height difference. Thus, O₃ electrical trimming seemed to increase the number of working emitters to produce a specific emission current, considerably improving both the emission uniformity and the lifetime of CNT emitters.

Keywords

carbon nanotubes; field emitter arrays; nanofabrication; CNT emitters; CNT paste; Joule-heated CNT; electrical trimming; narrow length distribution; specific emission current; uniform carbon nanotube field emitter fabrication; vacuum devices; working emitters; Brightness; Carbon nanotubes; Current density; Electric fields; Fabrication; Iron; Surface treatment; Carbon nanotubes; electrical trimming; field emission; height uniformity; length uniformity;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference (IVNC), 2012 25th International

Conference_Location

Jeju

ISSN

pending

Print_ISBN

978-1-4673-1983-6

Electronic_ISBN

pending

Type

conf

DOI

10.1109/IVNC.2012.6316873

Filename

6316873