Dragoneas, A., Grell, M., Hampton, M. et al. (1 more author) (2013) Morphology-Driven Sensitivity Enhancement in Organic Nanowire Chemiresistors. Sensor Letters, 11 (3). pp. 552-555. ISSN 1546-198X
Abstract
Chemiresistors were prepared from the common organic semiconductor, poly(3-hexylthiophene) (P3HT), which is known to respond to atmospheric humidity with an increase of its conductance. Chemiresistors with different P3HT morphologies were compared: a solution-cast film versus an organic nanowire ‘mesh.’ It was found that both types of chemiresistors show no response for an exposure to less than 50% relative humidity. When humidity exceeds this threshold, the conductance of both chemiresistors increases. The conductance response of the nanowire device is far stronger as compared to that of the solution-cast film. This difference can be justified by the much larger surface area in the nanowire morphology. We conclude that organic nanowires constitute a favourable morphology for organic sensor technology, and recommend their wider employment in organic sensor applications.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013 American Scientific Publishers |
Keywords: | P3HT; Nanowire; Humidity Sensor; Moisture Sensor; Chemiresistor; Polythiophene |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Aug 2016 11:56 |
Last Modified: | 08 Nov 2016 20:25 |
Published Version: | http://dx.doi.org/10.1166/sl.2013.2917 |
Status: | Published |
Publisher: | American Scientific Publishers |
Refereed: | Yes |
Identification Number: | 10.1166/sl.2013.2917 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96655 |