Ultrahigh electron emissive carbon nanotubes with nano-sized RuO2 particles deposition

Ruth Knibbe, Kazuhiro Nogita, John Drennan, Tsuneyuki Noguchi, Katsuyoshi Tatenuma, Pou Liu, Fumihito Arai, Eiji Yashima, Michiru Nishiwaki, Shigeki Kato

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Multi-wall carbon nanotubes (MWNTs) have a great commercial potential as electron field emitters, but suffer from fundamental problems such as stability and brightness. By depositing the MWNTs with nano-sized ruthenium dioxide (RuO2) particles, a new high performance emitter has been developed. When compared to MWNTs, the MWNTs impregnated with 1-2 nm sized RuO2 have superior and more efficient electrical characteristics. MWNTs supported by a silicon substrate showed a reduction in the onset voltage from 5.4 to 4 V/μm after RuO2 impregnation. The long-term stability of the impregnated MWNTs is also demonstrated with only a 20% increase in applied voltage required after 700 h operation at 40 mA/cm2.

Original languageEnglish
Pages (from-to)1201-1204
Number of pages4
JournalJournal of Nanoparticle Research
Volume9
Issue number6
DOIs
Publication statusPublished - Dec 1 2007

Fingerprint

Carbon Nanotubes
Nanotubes
Carbon nanotubes
Carbon
carbon nanotubes
Electron
Electrons
electrons
emitters
Voltage
Electric potential
electric potential
Silicon
Brightness
Ruthenium
dioxides
Impregnation
ruthenium
Luminance
brightness

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Knibbe, R., Nogita, K., Drennan, J., Noguchi, T., Tatenuma, K., Liu, P., ... Kato, S. (2007). Ultrahigh electron emissive carbon nanotubes with nano-sized RuO2 particles deposition. Journal of Nanoparticle Research, 9(6), 1201-1204. https://doi.org/10.1007/s11051-006-9207-1

Ultrahigh electron emissive carbon nanotubes with nano-sized RuO2 particles deposition. / Knibbe, Ruth; Nogita, Kazuhiro; Drennan, John; Noguchi, Tsuneyuki; Tatenuma, Katsuyoshi; Liu, Pou; Arai, Fumihito; Yashima, Eiji; Nishiwaki, Michiru; Kato, Shigeki.

In: Journal of Nanoparticle Research, Vol. 9, No. 6, 01.12.2007, p. 1201-1204.

Research output: Contribution to journalArticle

Knibbe, R, Nogita, K, Drennan, J, Noguchi, T, Tatenuma, K, Liu, P, Arai, F, Yashima, E, Nishiwaki, M & Kato, S 2007, 'Ultrahigh electron emissive carbon nanotubes with nano-sized RuO2 particles deposition', Journal of Nanoparticle Research, vol. 9, no. 6, pp. 1201-1204. https://doi.org/10.1007/s11051-006-9207-1
Knibbe, Ruth ; Nogita, Kazuhiro ; Drennan, John ; Noguchi, Tsuneyuki ; Tatenuma, Katsuyoshi ; Liu, Pou ; Arai, Fumihito ; Yashima, Eiji ; Nishiwaki, Michiru ; Kato, Shigeki. / Ultrahigh electron emissive carbon nanotubes with nano-sized RuO2 particles deposition. In: Journal of Nanoparticle Research. 2007 ; Vol. 9, No. 6. pp. 1201-1204.
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