Influence of growth mode of carbon nanotubes on physical properties for multiwalled carbon nanotube films grown by catalystic chemical vapor deposition

Masahiro Horibe, Mizuhisa Nihei, Daiyu Kondo, Akio Kawabata, Yuji Awano

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We have successfully developed control of the growth mode of carbon nanotubes (CNTs) by using titanium film and its oxidized form, and measured physical properties. The growth mode of CNTs can be controlled by the under layers of catalysts. Obtained CNT films have the site density of 1010 cm-2 for both the base- and tip-growth modes. Measured electrical resistance of 2-μm-diameter CNT-via, mechanical strength, and thermal conductivity for the base-growth mode CNT films were 91.1 Ω, 670 kPa and 291 W/mK, respectively. Better physical properties were observed for base-growth mode CNT films, compared with the tip-growth mode CNT films. In the base-growth mode, one CNT with a TiC contact had an estimated low electrical resistance of 100 kΩ, a high mechanical strength of 5.5 MPa, and a high thermal conductivity of 2400 W/mK.

Original languageEnglish
Pages (from-to)7337-7341
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume43
Issue number10
DOIs
Publication statusPublished - 2004 Oct
Externally publishedYes

Fingerprint

Multiwalled carbon nanotubes (MWCN)
Chemical vapor deposition
Carbon nanotubes
Physical properties
physical properties
carbon nanotubes
vapor deposition
Acoustic impedance
electrical resistance
Strength of materials
Thermal conductivity
thermal conductivity
titanium
Titanium
catalysts
Catalysts

Keywords

  • Base-growth mode CNT
  • Electrical resistance
  • Mechanical strength
  • Multiwalled carbon nanotubes
  • Thermal conductivity
  • Tip-growth mode CNT

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "We have successfully developed control of the growth mode of carbon nanotubes (CNTs) by using titanium film and its oxidized form, and measured physical properties. The growth mode of CNTs can be controlled by the under layers of catalysts. Obtained CNT films have the site density of 1010 cm-2 for both the base- and tip-growth modes. Measured electrical resistance of 2-μm-diameter CNT-via, mechanical strength, and thermal conductivity for the base-growth mode CNT films were 91.1 Ω, 670 kPa and 291 W/mK, respectively. Better physical properties were observed for base-growth mode CNT films, compared with the tip-growth mode CNT films. In the base-growth mode, one CNT with a TiC contact had an estimated low electrical resistance of 100 kΩ, a high mechanical strength of 5.5 MPa, and a high thermal conductivity of 2400 W/mK.",
keywords = "Base-growth mode CNT, Electrical resistance, Mechanical strength, Multiwalled carbon nanotubes, Thermal conductivity, Tip-growth mode CNT",
author = "Masahiro Horibe and Mizuhisa Nihei and Daiyu Kondo and Akio Kawabata and Yuji Awano",
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AU - Nihei, Mizuhisa

AU - Kondo, Daiyu

AU - Kawabata, Akio

AU - Awano, Yuji

PY - 2004/10

Y1 - 2004/10

N2 - We have successfully developed control of the growth mode of carbon nanotubes (CNTs) by using titanium film and its oxidized form, and measured physical properties. The growth mode of CNTs can be controlled by the under layers of catalysts. Obtained CNT films have the site density of 1010 cm-2 for both the base- and tip-growth modes. Measured electrical resistance of 2-μm-diameter CNT-via, mechanical strength, and thermal conductivity for the base-growth mode CNT films were 91.1 Ω, 670 kPa and 291 W/mK, respectively. Better physical properties were observed for base-growth mode CNT films, compared with the tip-growth mode CNT films. In the base-growth mode, one CNT with a TiC contact had an estimated low electrical resistance of 100 kΩ, a high mechanical strength of 5.5 MPa, and a high thermal conductivity of 2400 W/mK.

AB - We have successfully developed control of the growth mode of carbon nanotubes (CNTs) by using titanium film and its oxidized form, and measured physical properties. The growth mode of CNTs can be controlled by the under layers of catalysts. Obtained CNT films have the site density of 1010 cm-2 for both the base- and tip-growth modes. Measured electrical resistance of 2-μm-diameter CNT-via, mechanical strength, and thermal conductivity for the base-growth mode CNT films were 91.1 Ω, 670 kPa and 291 W/mK, respectively. Better physical properties were observed for base-growth mode CNT films, compared with the tip-growth mode CNT films. In the base-growth mode, one CNT with a TiC contact had an estimated low electrical resistance of 100 kΩ, a high mechanical strength of 5.5 MPa, and a high thermal conductivity of 2400 W/mK.

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