以微观形貌为棒状和片状的纳米级别半导体硫化铋为原料, 借鉴制造太阳能电池的思路, 制作成一种新型的光电探测器。实验发现, 该光电探测器对1 024 nm波长的激光具有很强的光敏感性, 不同微观形貌制成的装置对光线的响应情况不同, 选用棒状形貌材料制成的器件对激光的响应较灵敏, 该研究对制造高性能光电探测器具有一定的指导意义。

By using the nanorods and nanosheets bismuthous sulfide materials, we report the successful fabrication of a new type of photodetector by the method widely used for solar cells. The photodetector revealed good properties for laser beam of 1024nm. The photoconductive properties of both samples were also studied by configuring the samples as photodetectors, exhibiting different photosensitivity. The results indicate the nanorods materials have higher photosensitivity than the nanosheets materials. Our results imply that the new type of photodetector is prospective candidate for high-performance photodetector.