Thermally-assisted transient analysis for reducing the response time of microhotplate gas sensors

Abstract

This study examines methods for decreasing the response time of chemiresistive, metal oxide microhotplate gas sensors. We describe a successful approach that employs an innovative pulsed-temperature operation methodology for increasing the speeds at which analytes may be recognized. By implementing the suggested strategy, we obtain, in a data-driven fashion, insights into the transduction mechanisms of nanostructured sensing-films that may ultimately guide the selection of modulating frequencies that optimally reduce the sensor-analyte response time while preserving its high discrimination and quantification performance.