Publication: Gas sensing properties based on a doped conducting polymer/inorganic semiconductor
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Ieee
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Abstract
For medical diagnostic applications, there is currently a strong need for systems that comprises simple detectors. In this paper, we report the fabrication of heterojunction between p-doped polypyrrole and n-doped silicon and its possible use in the detecting of acetone. In the forward bias voltage region, the heterojunction diode exhibit a significant, fast and reversible response to acetone. The characteristics of the diodes were measured as a function of acetone vapor, temperature, polypyrrole film thickness and frequency, using current density-voltage and capacitance-voltage measurements..
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Keywords
heterojunction, conducting polymer, Schottky diode, sensor, acetone
Language
English
Citation
Proceedings Of The Ieee Sensors 2003, Vols 1 And 2. New York: Ieee, p. 1126-1129, 2003.
