Electronic Properties of LiMo_3Se_3-Nanowires and Mo_3Se_3-Nanowire-Networks for Nanoscale Electronic Devices

摘要

Nanowires and nanotubes have attracted much interest as potential building blocks for nanotechnology. This interest can be trced to the novel structural and electronic properties of these nanomaterials. Here we describe a study that measures the electronic properties of bare LiNo_3Se_3-nanowires, together with wires that have been stabilized by alkylammonium- and pyridinium-ligands. The bare LiMo_3Se_3nanowires consist of individual wire bundles whereas the ligand. The bare wires are shown to be metallic but susceptible to electrical degradation (oxidation) in air. Howeverm, conductivity measurements at different temperature and oxidation times show that conduction in the wire networks occurs via a percolation mechanism and is activated. Moreover, the corrosion rate of the Mo_3Se_3-nanowires is dramatically reduced when the wires are stabilized, demonstrating that the ligands from a protective semi-insulating coating.