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Response of a poly(pyrrole) resistive micro-bridge to ethanol vapour
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UNSPECIFIED (1998) Response of a poly(pyrrole) resistive micro-bridge to ethanol vapour. In: EUROSENSORS XI Meeting, WARSAW, POLAND, SEP 21-24, 1997. Published in: SENSORS AND ACTUATORS B-CHEMICAL, 48 (1-3). pp. 289-295. ISSN 0925-4005.
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Abstract
In this paper the authors describe the behaviour of a silicon micro-bridge fabricated with four conducting polymer resistive elements (two active) in a CMOS-compatible process. The poly(pyrrole) (PPy) bridges were characterised using a precision analogue interface circuit with the constant-current drive and voltage off-set set by a Labview Virtual Instrument. The responses of eight polymer micro-bridges to ethanol vapour were recorded at different temperatures and humidity's. The output voltage of the bridge circuit followed the classical Langmuir adsorption isotherm in concentration and generally fell with increasing temperature and humidity. A typical bridge sensitivity to ethanol of ca. 30 mu V/ppm was observed at room temperature with the linear temperature coefficient of the operation being relatively high at - 2.8 x 10(-2)/degrees C. (C) 1998 Elsevier Science S.A. All rights reserved.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Journal or Publication Title: | SENSORS AND ACTUATORS B-CHEMICAL | ||||
Publisher: | ELSEVIER SCIENCE SA | ||||
ISSN: | 0925-4005 | ||||
Official Date: | 30 May 1998 | ||||
Dates: |
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Volume: | 48 | ||||
Number: | 1-3 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 289-295 | ||||
Publication Status: | Published | ||||
Title of Event: | EUROSENSORS XI Meeting | ||||
Location of Event: | WARSAW, POLAND | ||||
Date(s) of Event: | SEP 21-24, 1997 |
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