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Proceedings Paper

Regioregular polythiophene nanowires and sensors
Author(s): Richard D. McCullough; Genevieve Sauve; Bo Li; Malika Jeffries-El; Suresh Santhanam; Lawrence Schultz; Rui Zhang; Mihaela C. Iovu; Jessica Cooper; Prathapan Sreedharan; Joseph C. Revelli; Aaron G. Kusner; Tomasz Kowalewski; Jay L. Snyder; Lee E. Weiss; David N. Lambeth; Gary K. Fedder
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Paper Abstract

We have developed and synthesized highly conductive regioregular poly(3-alkylthiophene) (rr-PAT) derivatives for use in sensor arrays on a chip. Poly(3-alkylthiophene)s are ideally suited for this application because of their excellent electrical properties, solution processability and our ability to modify their chemical structure. Here, we synthesized rr-PATs that have different side chains and different end groups. The polymers were ink-jetted onto ChemFET devices on a chip and their chemical sensing properties were tested to a variety of volatile organic compounds (VOCs). The sensors demonstrated ppm level sensitivity and selectivity to all VOCs tested, including both polar and non-polar compounds.

Paper Details

Date Published: 30 August 2005
PDF: 7 pages
Proc. SPIE 5940, Organic Field-Effect Transistors IV, 594005 (30 August 2005); doi: 10.1117/12.619609
Show Author Affiliations
Richard D. McCullough, Carnegie Mellon Univ. (United States)
Genevieve Sauve, Carnegie Mellon Univ. (United States)
Bo Li, Carnegie Mellon Univ. (United States)
Malika Jeffries-El, Carnegie Mellon Univ. (United States)
Suresh Santhanam, Carnegie Mellon Univ. (United States)
Lawrence Schultz, Carnegie Mellon Univ. (United States)
Rui Zhang, Carnegie Mellon Univ. (United States)
Mihaela C. Iovu, Carnegie Mellon Univ. (United States)
Jessica Cooper, Carnegie Mellon Univ. (United States)
Prathapan Sreedharan, Carnegie Mellon Univ. (United States)
Joseph C. Revelli, Carnegie Mellon Univ. (United States)
Aaron G. Kusner, Carnegie Mellon Univ. (United States)
Tomasz Kowalewski, Carnegie Mellon Univ. (United States)
Jay L. Snyder, Pittsburgh Research Lab. (United States)
Lee E. Weiss, Carnegie Mellon Univ. (United States)
David N. Lambeth, Carnegie Mellon Univ. (United States)
Gary K. Fedder, Carnegie Mellon Univ. (United States)


Published in SPIE Proceedings Vol. 5940:
Organic Field-Effect Transistors IV
Zhenan Bao; David J. Gundlach, Editor(s)

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