期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 139, 期 2, 页码 425-428出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2009.03.016
关键词
Carbon nanotubes; Gas sensors; NH3 gas; NO2 gas; Electrophoresis
We have developed a simple and inexpensive method to fabricate carbon nanotube-based chemical sensors by fabricating a horizontally aligned carbon nanotube film on a titanium/gold-coated glass plate using electrophoresis and fissure formation techniques. The sensors exhibited low noise and thus high sensitivity to the NH3 and NO2 molecules and the response times were relatively short. They were completely recovered within 40s when a dc voltage of 5V was applied for less than 30s. The fabrication processes do not require any expensive equipment like e-beam lithographs. They are relatively simple and low-cost, and the sensors themselves are mass-producible. (C) 2009 Elsevier B.V. All rights reserved.
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