Abstract
In this paper, multiple-walled carbon nanotubes (MWCNTs) monolayer film and MWCNTs-polyvinylpyrrolidone (PVP) composite films were fabricated on interdigitated electrodes (IDEs) by airbrush technology, respectively. Response performance of all the sensors to various concentrations of vapors including methanol, ethanol, acetone, tetrahydrofuran, water and 1,2-dichloroethane were investigated. The results showed that a larger sensing response was obtained for the composite films compared with the MWCNTs monolayer film. Moreover, the MWCNTs-PVP composite films had a good selectivity for 1,2-dichloroethane vapor.
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