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

Klamchuen, Annop; Tanaka, Hirofumi; Tanaka, Daisuke; Toyama, Hirotaka; Meng, Gang; Rahong, Sakon; Nagashima, Kazuki; Kanai, Masaki et al. · Adv Mater · 2013

basic_science · Level V

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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.