Fabrication and characterization of non-planar high-current-density carbon-nanotube coated cold cathodes

Y. Tzeng, Y. Chen, C. Liu

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Carbon-nanotube coated non-planar cold cathodes emit electrons of high current densities at low applied electric fields. Multiple-wall carbon nanotubes were chemically vapor grown inside while pre-synthesized single-wall carbon nanotubes were used to fill holes drilled into electrically conductive electrodes. Thermal chemical vapor deposition was carried out in mixtures of argon and acetylene using iron as the catalyst for the growth of carbon nanotubes. These non-planar cold cathodes emit electrons of high current density at low electric fields. Electron field emission current density approximately 700 mA/cm2 at 2.75 V/μm was measured.

Original languageEnglish
Pages (from-to)442-445
Number of pages4
JournalDiamond and Related Materials
Volume12
Issue number3-7
DOIs
Publication statusPublished - 2003 Mar

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Mechanical Engineering
  • Materials Chemistry
  • Electrical and Electronic Engineering

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