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Development of Electrically Conductive Poly(3-Hexylthiophene) as a thin Film Sensor for Hydrazine Vapor

Published online by Cambridge University Press:  25 February 2011

D. L. Ellis ,
M. R. Zakin ,
L. S. Bernstein  and
M. F. Rubner
D. L. Ellis
Affiliation:
Harvard University, Cambridge, MA 02138
M. R. Zakin
Affiliation:
Spectral Sciences, Inc., Burlington, MA 01803
L. S. Bernstein
Affiliation:
Spectral Sciences, Inc., Burlington, MA 01803
M. F. Rubner
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139
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Abstract

Thin films of the electrically conducting polymer, poly(3-hexylthiophene) (P3HT), were developed as sensors for hydrazine vapor at the part-per-billion level. The P3HT films were fabricated by a spin coating technique onto quartz substrates incorporating gold interdigitated electrodes, and were rendered conductive by doping with an NOPF6 solution. The sensors respond strongly and instantaneously to hydrazine concentrations as low as 1 part-per-billion with a measurement accuracy of ±20%. In addition, the sensors exhibited excellent environmental stability, long shelf life, and good interference rejection.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 293: Symposium U – Solid State Ionics III , 1992 , 159
Copyright
Copyright © Materials Research Society 1993

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