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JRM Vol.17 No.4 pp. 475-482
doi: 10.20965/jrm.2005.p0475
(2005)

Paper:

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Field Emission of Individual Carbon Nanotubes and its Improvement by Decoration with Ruthenium Dioxide Super-Nanoparticles

Pou Liu*, Fumihito Arai*, Lixin Dong**,
Toshio Fukuda*, Tsuneyuki Noguchi***,
and Katsuyoshi Tatenuma***

*Department of Micro-Nano Systems Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

**Institute of Robotics and Intelligent Systems, Swiss Federal Institute of Technology (ETH), CLA H 17.2, ETH-Zentrum, Tannenstrasse 3, CH-8092 Zürich, Switzerland

***KAKEN Inc., Hori-cho, Mito, Ibaraki 310-0903, Japan

Received:
May 20, 2005
Accepted:
June 14, 2005
Published:
August 20, 2005
Creative Commons License
Keywords:
carbon nanotube, super-nanoparticles, field emission, nanorobotic manipulation, electron-beam-induced deposition
Abstract
To reduce energy consumption by carbon nanotubes (CNTs) used as emitters in applications such as field emission display, and electron-beam-induced deposition (EBID), nano-sized metallic super-nanoparticles of ruthenium dioxide are decorated on the surface of CNTs. We studied field emission properties and found that the work voltage is 23% lower than that of as-grown CNT emitters. To obtain conductive nanostructures, electron-beam-induced deposition using an individual multiwalled carbon nanotube (MWNT) emitter decorated with ruthenium dioxide is realized by introducing tungsten hexacarbonyl (W(CO)6) as a precursor. The tungsten mass in deposits is rich at 98.89% as determined by energy x-ray dispersive spectrometer (EDS). We thus obtained nearly pure-metal deposits.
Cite this article as:
P. Liu, F. Arai, L. Dong, T. Fukuda, T. Noguchi, and K. Tatenuma, “Field Emission of Individual Carbon Nanotubes and its Improvement by Decoration with Ruthenium Dioxide Super-Nanoparticles,” J. Robot. Mechatron., Vol.17 No.4, pp. 475-482, 2005.
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