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Volume: 20 | Article ID: art00112_1
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Low-Temperature Growth of Vertically Aligned Carbon Nanotubes for Field Emission
Yoshikazu Nakayama
Lujun Pan
Koichi Takeda
  DOI :  10.2352/ISSN.2169-4451.2004.20.1.art00112_1  Published Online :  January 2004
Abstract

We have investigated a low-temperature growth process of vertically aligned carbon nanotubes on a normal glass plate, which is applicable to the preparation of large-sized field emission devices. The development involves the preheating of a carbon source gas and the use of binary-layered metal catalysts. We have found that the preheating at 700°C enhances the reactivity of a carbon source gas of acetylene and contributes to the decomposition of the gas in high efficiency on the surfaces of the catalysts heated even at 450°C. For the catalysts, we have examined Fe/Al, Fe/Ti and Co/Ti. It is found that the Al base layer enhances the reaction of Fe but the Ti base layer does not. The combination of Ti base layer with Co instead of Fe is effective for growth of aligned nanotubes at a low temperature. It is also found that the precarbonization of catalysts is effective for Fe related catalysts to enhance their reaction. For Co/Ti catalysts the thickness is an important factor and thinner one is effective. The field emission properties of the low-temperature grown nanotubes have been demonstrated.

Journal Title : NIP & Digital Fabrication Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/ISSN.2169-4451.2004.20.1.art00112_1
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Yoshikazu Nakayama, Lujun Pan, Koichi Takeda, "Low-Temperature Growth of Vertically Aligned Carbon Nanotubes for Field Emission"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP20),  2004,  pp 505 - 508,  https://doi.org/10.2352/ISSN.2169-4451.2004.20.1.art00112_1

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Copyright © Society for Imaging Science and Technology 2004
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NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2169-4451(20040101)2004:1L.505;1-
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Articles
Low-Temperature Growth of Vertically Aligned Carbon Nanotubes for Field Emission
NakayamaYoshikazu
PanLujun
TakedaKoichi
01012004
2004
1
505
508
2004
We have investigated a low-temperature growth process of vertically aligned carbon nanotubes on a normal glass plate, which is applicable to the preparation of large-sized field emission devices. The development involves the preheating of a carbon source gas and the use of binary-layered metal catalysts. We have found that the preheating at 700°C enhances the reactivity of a carbon source gas of acetylene and contributes to the decomposition of the gas in high efficiency on the surfaces of the catalysts heated even at 450°C. For the catalysts, we have examined Fe/Al, Fe/Ti and Co/Ti. It is found that the Al base layer enhances the reaction of Fe but the Ti base layer does not. The combination of Ti base layer with Co instead of Fe is effective for growth of aligned nanotubes at a low temperature. It is also found that the precarbonization of catalysts is effective for Fe related catalysts to enhance their reaction. For Co/Ti catalysts the thickness is an important factor and thinner one is effective. The field emission properties of the low-temperature grown nanotubes have been demonstrated.