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

doi:10.1007/s11051-006-9207-1

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 journal › Article › peer-review

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 language	English
Pages (from-to)	1201-1204
Number of pages	4
Journal	Journal of Nanoparticle Research
Volume	9
Issue number	6
DOIs	https://doi.org/10.1007/s11051-006-9207-1
Publication status	Published - Dec 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1007/s11051-006-9207-1

Cite this

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title = "Ultrahigh electron emissive carbon nanotubes with nano-sized RuO2 particles deposition",

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.",

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

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T1 - Ultrahigh electron emissive carbon nanotubes with nano-sized RuO2 particles deposition

AU - Knibbe, Ruth

AU - Nogita, Kazuhiro

AU - Drennan, John

AU - Noguchi, Tsuneyuki

AU - Tatenuma, Katsuyoshi

AU - Liu, Pou

AU - Arai, Fumihito

AU - Yashima, Eiji

AU - Nishiwaki, Michiru

AU - Kato, Shigeki

PY - 2007/12

Y1 - 2007/12

N2 - 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.

AB - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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