Thin film processing of MoO3 based hybrid materials

Abstract

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.

Separation and analysis of trace volatile formaldehyde in aquatic products by a MoO3/polypyrrole intercalative sampling adsorbent with thermal desorption gas chromatography and mass spectrometry

“…Nowadays, there are a number of reports about MoO 3 with various interlayer organic components such as poly(ethylene oxide) , pyrazine , poly( o ‐anisidine) , carbon nanotubes , graphene oxide , and polyaniline . MoO 3 intercalative materials have been widely applied in different fields including VOCs sensors , photodecomposition , catalysts , supercapacitors , and batteries in previous reports. Polypyrrole (PPy) is a kind of heterocyclic compound with large planar structure and polar functional groups.…”

First-principles calculations of the novel properties of two-dimensional materials

“…The transition metal oxides generally are of great technical interest and highly important in commercial catalysts. In the case of molybdenum oxides, they have attracted considerable attention owing to its wide band gap nature and exhibit various promising applications, such as catalysis [26,27,28], Li-ion batteries [29,30,31,32,33], gas sensors [34,35,36,37,38,39], recording materials [40,41], solar cells [42,43,44]], photochromic and electrochromic devices [45,46,47]. Therefore, the understanding of the electronic and optical properties in molybdenum oxides are important for both fundamental studies and applications.…”