石墨烯纳米带探测器的仿真与结构优化

摘要

石墨烯的光学响应极其微弱,制约了它在光电子学领域的应用. 介绍了石墨烯探测器的基本工作原理,并基于石墨烯材料的带隙调控机理建立了石墨烯纳米带探测器结构模型,并进行数学模拟仿真,分析了纳米带宽度、I区长度及偏置电压对响应电流的影响,从而优化石墨烯纳米带探测器的结构参数,为高灵敏度室温石墨烯探测器的研究奠定基础.%The optical response of graphene is extremely weak, restrict its application in the field of optoelectronics. This paper introduces the basic working principle of the detector based on graphene, graphene materials and energy gap of the regulation mechanism of a graphene nanoribbon detector structure model and mathematical simulation, analysis of the effects of nano belt width、 I length and the bias voltage on the response current, so as to optimize the structure parameters of the graphene nanoribbon detector. To lay the foundation for the research of high sensitivity of graphene at room temperature detector.