基于单根银纳米线的光敏传感器

发布时间：2018-10-19 10:41

【摘要】：基于镍银异质结的光电流特性,通过设计制作纳米线搭载间隔为50μm的镍电极结构以及水力聚焦法组装银纳米线,制得了由单根银纳米线构成的镍银异质结光敏传感器。在实验中通过在650 nm激光不同功率照射下测量该传感器结构产生的光电流值,研究了光电流的强度范围及其随光照强度变化的关系曲线。实验表明,光电流的强度在纳安级别,并且与激光功率在特定范围内近似呈线性关系。实验也测定了银纳米线的电阻范围及电阻率,并分析了温度对银纳米线电阻的影响,发现银纳米线电阻与温度也近似呈线性关系。
[Abstract]:Based on the photocurrent characteristics of nickel-silver heterojunction, the nickel and silver heterojunction Guang Min sensor composed of single silver nanowires was fabricated by designing and fabricating nickel electrode structure with a distance of 50 渭 m and hydraulic focusing method. In the experiment, the photocurrent produced by the sensor structure was measured under 650 nm laser irradiation with different power, and the range of the photocurrent and the relation curve with the illumination intensity were studied. The experimental results show that the intensity of photocurrent is at the Nano level and is approximately linear with the laser power in a specific range. The range of resistance and resistivity of silver nanowires were also measured. The influence of temperature on the resistance of silver nanowires was analyzed. It was found that the resistance of silver nanowires was also approximately linear with temperature.
【作者单位】：上海大学机电工程与自动化学院;
【基金】：自然科学基金资助项目(51205245) 高等学校博士学科点专项科研基金联合资助课题(20123108120010) 教育部留学回国人员启动资金资助项目
【分类号】：TB383.1;TP212

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