Advanced photoassisted atomic switches produced using ITO nanowire electrodes and molten photoconductive organic semiconductors

Abstract

Photoassisted atomic switches (PASs) are those produced using photoconductive organic materials. However, the use of solid photoconductive materials and the formation of a large Ag conductive bridge lead to the formation of large voids during the shrinking of Ag conductive bridges; this may degrade the performance of PASs. A low-melting-point organic semiconductor is used as a molten photoconductive material, and self-assembled ITO nanowires are used as transparent electrodes. Stable atomic switching is observed only under light irradiation.

Keywords: Repeatable switching; artificial retina; associative learning device; image recognition device; synaptic switching.