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Response of poly(vinyl acetate)\carbon black composites to ethanol vapour and temperature
Date
2004
Abstract
The effect of ethanol vapour and temperature was investigated on gas sensors fabricated from poly (vinylacetate)\carbon black composites based around a predetermined percolation threshold. Samples with 8% carbon black loading displayed the best response to the ethanol vapour. Typical response and recovery times of 140s and 45s respectively were recorded. In addition, bridge structures were fabricated, where all four resistive elements were prepared from the same composite material and in which a novel passivation process was employed. It was observed that these bridge stmchres were significantly less affected by variations in temperature in comparison to the single sensor structures.
Supervisor
Description
peer-reviewed
Publisher
IEEE Computer Society
Citation
MIEL 2004. 24th International Conference on Microelectronics