Effects of carbon nanotube diameters of the screen printed cathode on the field emission characteristics

Takikawa, T.; Oki, H.; Matsuura, Y.; Murakami, K.; Abo, S.; Wakaya, F.; Takai, M.

doi:doi:10.1116/1.3289316

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Journal of Vacuum Science & Technology B / Volume 28 / Issue 2 / PAPERS FROM THE 22nd INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE / Fabrication

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J. Vac. Sci. Technol. B 28, C2C41 (2010); http://dx.doi.org/10.1116/1.3289316 (4 pages)

Effects of carbon nanotube diameters of the screen printed cathode on the field emission characteristics

T. Takikawa, H. Oki, Y. Matsuura, K. Murakami, S. Abo, F. Wakaya, and M. Takai

Center for Quantum Science and Technology under Extreme Conditions and Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan

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(Published online 31 March 2010)

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Carbon nanotubes (CNTs) with diameters of 10 or 100 nm have been screen printed on indium tin oxide/glass substrates and treated by an adhesive tape or a KrF excimer laser. After the surface treatment, the field emission characteristics of CNT cathodes have been measured. The lower turn-on electric fields have been obtained for the CNT cathodes with a CNT diameter of 10 nm. Then a high electric field pulse aging has been performed to get more uniform emission images. Finally, the field emission lifetimes of CNT cathodes have been measured. The lifetimes of the CNT cathodes treated by tape peeling have been only several hours at a dc measurement, whereas the lifetimes of the CNT cathodes treated by a KrF excimer laser, regardless of the CNT diameter, reached 100 h, corresponding to 100 000 h at a duty ratio of 1/1000.

ACKNOWLEDGMENTS

This work was supported by the Carbon-Nanotube FED Project of the Nanotechnology and Material Technology Department, New Energy and Industrial Technology Development Organization (NEDO).

Article Outline

INTRODUCTION
EXPERIMENT
RESULTS AND DISCUSSION
CONCLUSIONS

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KEYWORDS and PACS

Keywords

carbon nanotubes, cathodes, field emission, indium compounds, surface treatment, carbon nanotube (CNT), indium tin oxide (ITO), krypton fluoride (KrF)

PACS

85.35.Kt

Nanotube devices
79.70.+q

Field emission, ionization, evaporation, and desorption

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History

Received 7 October 2009
Accepted 14 December 2009
Published online 31 March 2010

Digital Object Identifier

http://dx.doi.org/10.1116/1.3289316

PUBLICATION DATA

ISSN

1071-1023 (print)

1520-8567 (online)

Publisher

American Vacuum Society

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