Field emission vacuum power switch using vertically aligned carbon nanotubes

N. L. Rupesinghe, M. Chhowalla, K. B.K. Teo, G. A.J. Amaratunga

Research output: Contribution to journalArticle

33 Citations (Scopus)


The best field emission properties from carbon nanotube cathodes were obtained when their heights, diameters and spacings were optimized. Field emission currents as high as 10 mA were obtained from 1 cm × 1 cm vertically aligned CNT cathode with optimized parameters grown using dc plasma CVD in situ. It was found that in order to obtain large emission current of >10 mA, space charge effects within the electron beam must be taken into account.

Original languageEnglish
Pages (from-to)338-343
Number of pages6
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Issue number1 SPEC.
Publication statusPublished - Jan 1 2003


ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this