Optical switches based on Bi2S3 nanowires synthesized by molten salt solvent method

Abstract Bismuth sulfide (Bi 2 S 3 ) nanowires have been synthesized for the first time by a one-step, low temperature, ambient pressure, environment friendly molten salt solvent method. The photoelectric response of Bi 2 S 3 nanowire films has been characterized in the visible light of different wavelengths and ultraviolet, and the results indicated its great potential applications as optical sensors/switches and optoelectronic nanodevices with a response time in ∼ ms range.