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

Abstract

A new kind of polystyrene and surfactant, didodecyldimethylammonium, co-intercalated MoO₃ nano hybrids was prepared by chemical vapor deposition combined with wet process of simple immersion in an organic solution. The hybrid thin films have a characteristic structure of polystyrene and surfactant co-intercalation into MoO₃ with b-axis orientation on the LaAlO₃ (100) single crystal substrate. The hybrid thin films show a distinct response to acetaldehyde vapor by decreasing the electrical resistance. We discuss the possible sensing mechanism for acetaldehyde gas.