Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5355542 | Applied Surface Science | 2015 | 5 Pages |
Abstract
Silver halides and chalcogenides are excellent memristor materials that have been extensively used in the past as photosensitive layers in photography. Here we examine the effect of illumination on the operating voltages and switching speed of Ag/Ag2S/Au memristors using a green laser (473-523Â nm). Our results indicate that illumination decreases the average switching time from high to low resistance states by â¼19% and decreases the turn-off voltages dramatically from â0.8Â V to â0.25Â V that we attribute to the change in sulfur valency and a photo-induced change in its oxidation/reduction potential. Photo-induced reduction of silver in Ag2S may be used in three dimensional optical memories that can be electronically read and reset.
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Authors
N.I. Mou, M. Tabib-Azar,