Preparation of Polystyrene and Surfactant Co-intercalated MoO3 Nano Hybrids and their VOC Gas Sensing Properties

Intercalative inorganicorganic hybrids with useful properties have attracted much attention owing to their potential applications in various kinds of devices. The development of thin film process is crucial to realize a novel device using the hybrid materials. Thin films of the intercalated organic/MoO 3 hybrids have been prepared by an ex-situ intercalation process. The host MoO 3 films were first deposited on substrates by using a CVD method followed by the intercalation of organic components into the MoO 3 films. The preparation of highly b-axis oriented MoO 3 films is essential to prepare the organic/MoO 3 films. The organic/MoO 3 films show semiconducting-like transport. The organic/MoO 3 films show a distinct response to VOCs by changing their electrical resistivity and exhibit higher sensitivities to aldehyde gases, whereas almost no response to toluene and xylene. The VOC sensing performance is closely related to the microstructure of the organic/MoO 3 thin films, which is able to be controlled by the growth conditions of the host MoO 3 thin films.

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Preparation of Polystyrene and Surfactant Co-intercalated MoO3 Nano Hybrids and their VOC Gas Sensing Properties

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