Effect of micro-electrode geometry on response of thin-film poly(pyrrole) and poly(aniline) chemoresistive sensors

Abstract

The response of four different electrochemically-prepared conducting polymer gas sensors has been investigated. A theoretical model is developed exploring the effect of the micro-electrode geometry on both the steady-state and transient response of these polymer sensors. Our theory is compared with experimental results obtained by exposing the sensors to various concentrations of ethanol vapour in air at different temperatures and relative humidity's