Field emission enhancement by electric field activation in screen-printed carbon Nanotube film

Hyeon Jae Lee, Yang Doo Lee, Woo Sung Cho, Jai Kyeong Kim, Sung Woo Hwang, Byeong Kwon Ju

Research output: Contribution to journalArticle

Abstract

By applying a critical field treatment instead of the conventional surface treatments such as soft rubber roller, ion beam irradiation, adhesive taping, and laser irradiation, electron emission properties of screen-printed carbon nanotubes (CNTs) were enhanced and investigated based on the emission current-voltage characteristics through scanning electron microscopy. After nanotube emitters were activated at the applied electric-field of 2.5 V/um, the electron emission current density with good uniform emission sites reached the value of 2.13 mA/cm2, which is 400 times higher than that of the untreated sample, and the turn-on voltage decreased markedly from 700 to 460 V. In addition, enhancement of the alignment of CNTs to the vertical direction was observed.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalJournal of Information Display
Volume6
Issue number4
DOIs
Publication statusPublished - 2005

Fingerprint

Carbon Nanotubes
Electron emission
Field emission
Carbon nanotubes
Chemical activation
Electric fields
Rubber
Laser beam effects
Current voltage characteristics
Nanotubes
Ion beams
Surface treatment
Adhesives
Current density
Irradiation
Scanning electron microscopy
Electric potential
Direction compound

Keywords

  • Carbon nanotube
  • Field-emission
  • Screen-printing
  • Surface treatment

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Field emission enhancement by electric field activation in screen-printed carbon Nanotube film. / Lee, Hyeon Jae; Lee, Yang Doo; Cho, Woo Sung; Kim, Jai Kyeong; Hwang, Sung Woo; Ju, Byeong Kwon.

In: Journal of Information Display, Vol. 6, No. 4, 2005, p. 45-48.

Research output: Contribution to journalArticle

Lee, Hyeon Jae ; Lee, Yang Doo ; Cho, Woo Sung ; Kim, Jai Kyeong ; Hwang, Sung Woo ; Ju, Byeong Kwon. / Field emission enhancement by electric field activation in screen-printed carbon Nanotube film. In: Journal of Information Display. 2005 ; Vol. 6, No. 4. pp. 45-48.
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