Single Crystal Metal Oxide Nanowires as Bio-Chem Sensing Probes

摘要

Single crystal MoO_3 nanowires were produced using the electrospinning technique. High resolution transmission electron microscopy (HRTEM) revealed that the 1-D nanostructures are 10nm in diameter, on the order of 1 μm~2 μm in length, and have an orthorhombic structure. It has been demonstrated that a nano-network of MoO_3 nanowires exhibits higher sensitivity and an n-type response to NH_3 as compared to the response of a traditional sol-gel sensor. The structure, crystallinity, and sensoric nature of these single-step processed nanowires are discussed.