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Efficient Carbon Nanotube Field Emitter using Electrospun Carbon Nanofibers as a Flexible Electrode

Published online by Cambridge University Press:  31 January 2011

Hidetoshi Matsumoto
Affiliation:
matsumoto.h.ac@m.titech.ac.jpmatsumot@o.cc.titech.ac.jp, Tokyo Institute of Technology, Department of Organic and Polymeric Materials, 2-12-1-S8-27 Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
Kenichi Suzuki
Affiliation:
blackwavejp@yahoo.co.jp, Tokyo Institute of Technology, Department of Organic and Polymeric Materials, Tokyo, Japan
Kazuma Tsuboi
Affiliation:
tsuboi.k.ab@m.titech.ac.jp, Tokyo Institute of Technology, Department of Organic and Polymeric Materials, Tokyo, Japan
Mie Minagawa
Affiliation:
minagawa.m.aa@m.titech.ac.jp, Tokyo Institute of Technology, Department of Organic and Polymeric Materials, Tokyo, Japan
Akihiko Tanioka
Affiliation:
tanioka.a.aa@m.titech.ac.jp, Tokyo Institute of Technology, Department of Organic and Polymeric Materials, Tokyo, Japan
Yasuhiko Hayashi
Affiliation:
hayashi.yasuhiko@nitech.ac.jp, Nagoya Institute of Technology, Department of Frontier Materials, Nagoya, Japan
Kazuyuki Fukuzono
Affiliation:
fukuzono@seiwa.co.jp, Seiwa Electric Mfg. Co. Ltd., Joyo, Japan
Gehan A.J. Amaratunga
Affiliation:
gaja1@hermes.cam.ac.uk, University of Cambridge, Deparrtment of Engineering, Cambridge, United Kingdom
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Abstract

Thermal-stable, conductive, and flexible carbon fabric (CF), which is composed of thin carbon fibers prepared by electrospinning, was used for the substrate of carbon nanotube (CNT) field emitter arrays. The field emitter arrays were prepared by chemical vapor deposition (CVD). The current density-electric field characteristics revealed that the CNT field emitter arrays on CF produced a higher current density at a lower turn-on voltage compared to ones on a Si substrate. This emitter integrated with a gate electrode based on hierarchy-structured carbon materials, CNTs on CF, can be used for light sources, displays, and other electronic devices.

Type
Research Article
Copyright
Copyright © Materials Research Society 2009

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