Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 131, Issue 2, Pages 379-383Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2007.11.043
Keywords
dip-pen nanolithography; conducting polymer; gas sensor; carbon dioxide
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In the present work, a conducting polymer, doped polypyrrole, was used to develop a gas sensor by dip-pen nanolithography (DPN). The response time of the sensor to 18 ppm CO2 was 9 s. The sensor response increased linearly as the CO2 concentration increased. A possible mechanism for the CO2 sensing was discussed. (C) 2007 Elsevier B.V. All rights reserved.
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