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 journalArticlepeer-review

35 Scopus citations


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 (US)
Pages (from-to)338-343
Number of pages6
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Issue number1 SPEC.
StatePublished - Jan 2003

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Field emission vacuum power switch using vertically aligned carbon nanotubes'. Together they form a unique fingerprint.

Cite this