Optical and THz properties of carbon nanotube forests

We showed a poster presentation in NT15, entitled “Optical and THz properties of carbon nanotube forests”. Anisotropic optical index of vertically aligned CNT forests are interpreted by the anisotropic electorical conductance of nano-rods of CNTs.

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P314: “Optical and THz properties of carbon nanotube forests”, H. Furuta, K. Sekiya, A. Pander, J. Udorn, H. Koji, A. Hatta, K. Takano, and M. Nakajima, NT15, (Nagoya Univ., Nagoya, JAPAN, Jun. 29 – Jul. 3, 2015)

Jun. 30, 2015

NT15-first circular

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Improved electrical conductivity of CFRP composed by MWNT-coated CFs

We will have a poster presentation in DCM2014, entitled “Improved electrical conductivity of CFRP composed by MWNT-coated CFs”. I’m looking forward to seeing you on site.
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P2.031: “Improved electrical conductivity of CFRP composed by MWNT-coated CFs”, H. Furuta, A. Hatta, Y. Shimomoto, and T. Komukai, DCM2014, (Mellia Castilla, Madrid, Spain, 7-11 Sep. 2014)

4 Sep. 2014

H. Furuta

Magnetron sputtering deposition of catalyst nano-particles for the growth control of carbon nanotubes

I am pleased to have an invited talk in IUMRS-ICA2014.ttl_ica

(Invited)D2-I28-008, “Magnetron sputtering deposition of catalyst nano-particles for the growth control of carbon nanotubes”, H. Furuta, IUMRS-ICA2014, (Fukuoka, Japan, 28 Aug. 2014).

In the presentation, I reviewed catalyst nano-particle formations by magnetron sputtering method for the growth control of carbon nanotubes. I also showed recent works in my laboratory including “Frost-column-like CNT forest”.DSCN3548

28 Aug. 2014

Hiroshi Furuta

Increased CNT growth density with an additional thin Ni layer on the Fe/Al catalyst film

DRMWe are pleased to announce that our paper entitled “Increased CNT growth density with an additional thin Ni layer on the Fe/Al catalyst film”  will be published in Dia. Rel. Mat.

“Increased CNT growth density with an additional thin Ni layer on the Fe/Al catalyst film”
H. Koji, H. Furuta, K. Sekiya, N. Nitta, T. Harigai, and A. Hatta
Dia. Rel. Mat. 36(2013)1-7.
DOI: 10.1016/j.diamond.2013.02.002

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Growth density of the vertically aligned MW-CNT forests could be controlled by a novel Ni/Fe/Al multi-layered catalyst film. The additional Ni over-coating layer on the conventional Fe/Al multi-layered catalyst films could prevent agglomeration of fine Fe particles, resulting in the high density growth of MWNT forests.

Hiroshi Furuta

Long lifetime emission from screen printing carbon nanotubes over 45,000h at 1.27mA/cm2 with 10% duty ratio

DRMWe are pleased to announce that our paper entitled “Long lifetime emission from screen printing carbon nanotubes over 45,000h at 1.27mA/cm2 with 10% duty ratio” by H. Furuta, T. Komukai, H. Koji, and A. Hatta, will be published in Dia. Rel. Mat. 35(2013)29-35.

A novel CNT paste for screen printing emitter, which contains agglomerated CNT bundles, could performed stable emission for more than 5 years.

Hiroshi Furuta

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Long life-time test for more than 5 years!

URL link http://dx.doi.org/10.1016/j.diamond.2013.03.003