01. Electrical switching and phase transformation in silver selenide nanowires
Schoen, D.T., Xie, C., and Cui, Y., Electrical switching and phase transformation in silver selenide nanowires.
We report for the first time the electrical transport in solid-state electrolyte nanowires. Single nanowire transport and in situ transmission electron microscopy studies show that Ag2Se nanowires can be high conducting orthorhombic β-Ag2Se or low conducting cubic α-Ag2Se. It is also the first time that α-Ag2Se is found to be stable at room temperature. A threshold switching phenomenon exists in the low conducting α-Ag2Se with an on−off ratio up to 7 order magnitude. These results provide useful new information for exploring solid-state electrolyte nanowires as resistive switching memory devices.