Haifeng Bao et al 2008 Nanotechnology 19 335302 doi:10.1088/0957-4484/19/33/335302
Haifeng Bao1,2, Chang Ming Li1,2,4, Xiaoqiang Cui1,2, Qunliang Song1,2, Hongbin Yang1,2 and Jun Guo3
Show affiliationsA single-crystalline bismuth sulfide (Bi2S3) nanowire network film at a centimeter scale is fabricated by the facile hydrothermal method. The Bi2S3 film is easily tape-transferred onto a soft plastic substrate, and is further used to fabricate optical switches by screen-printing an Ag electrode array on its top. Our studies demonstrate that the Bi2S3 nanowire network has a pronounced increase in conductance upon exposure to visible light, and possesses a very fast response time of about 2 ms. This work provides a simple and economic method to fabricate a high performance optical switch array and could offer great potential for a low cost, mass-manufacturing process.
81.16.-c Methods of nanofabrication and processing
42.79.Ta Optical computers, logic elements, interconnects, switches; neural networks
81.07.-b Nanoscale materials and structures: fabrication and characterization
85.60.Bt Optoelectronic device characterization, design, and modeling
85.60.Gz Photodetectors (including infrared and CCD detectors)
Issue 33 (20 August 2008)
Received 10 March 2008, in final form 20 May 2008
Published 7 July 2008
Haifeng Bao et al 2008 Nanotechnology 19 335302
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