Carbon nanotube-enhanced performance of microplasma devices

S. J. Park, James Gary Eden, K. H. Park

Research output: Contribution to journalArticlepeer-review


The improvement of operational parameters such as ignition, operating voltages and radiant output of microplasma devices by introduction of multiwall carbon nanotubes (CNT) was analyzed. The ignition voltages were reduced by 14%-18% with introduction of CNTs for Ne pressures of 100-300 Torr. The radiative efficiencies were increased with CNTs by 6%-9% in the 300-800 nm spectral region over the entire pressure range. The results from voltage-current characteristics for two device configurations show that electrons generated within cathode microcavity by CNT field emission were most effective in impacting device performance.

Original languageEnglish (US)
Pages (from-to)4481-4483
Number of pages3
JournalApplied Physics Letters
Issue number22
StatePublished - May 31 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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