Abstract
A single-crystalline bismuth sulfide(Bi2S3) nanowire network film at a centimeter scale is fabricated by the facile hydrothermal method. TheBi2S3 film is easily tape-transferred onto a soft plastic substrate, and is further used to fabricate opticalswitches by screen-printing an Ag electrode array on its top. Our studies demonstrate that theBi2S3 nanowire network has a pronounced increase in conductance upon exposure to visiblelight, and possesses a very fast response time of about 2 ms. This work providesa simple and economic method to fabricate a high performance optical switcharray and could offer great potential for a low cost, mass-manufacturing process.
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