Growth temperature effect on field emission properties of printable carbon nanotubes cathode

  • Lili Wang
  • , Zhuo Sun*
  • , Ting Chen
  • , Wenxiu Que
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The carbon nanotubes (CNTs) were synthesized by low pressure chemical vapor deposition (CVD) in the temperature range of 500-750 °C. The dependence of field emission properties of screen-printed cathode on the CNTs growth temperatures was studied. The scanning electron microscope (SEM) images and Raman spectra showed that with the temperature increasing from 500 °C to 750 °C, the average diameter of most CNTs decreased, and the crystallinity of the nanotubes increases as shown by the narrower and more intense G peak in the Raman spectra. It is found that the higher growth temperature, the better field emission properties of the screen-printed nanotubes cathodes, i.e. lower turn-on emission field, higher emission current and more uniform emission.

Original languageEnglish
Pages (from-to)800-804
Number of pages5
JournalSolid-State Electronics
Volume50
Issue number5
DOIs
StatePublished - May 2006

Keywords

  • Carbon nanotubes (CNTs)
  • Field emission display (FED)
  • Growth temperature
  • Screen printing

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