半导体光电, 2017, 38 (3): 334, 网络出版: 2017-07-10
基于石墨烯纳米条带阵列的光电探测器模型
Model of Photodetector Based on Graphene Nanoribbon Array
摘要
提出了一种基于石墨烯纳米条带阵列的光电探测器(GNR-PD)结构, 讨论了器件的解析模型。基于二维泊松方程, 在弱非局域近似条件下建立了GNR-PD的器件模型, 推导了其I-V特性和光响应特性。结果表明, GNR-PD具有极高量子效率和光电增益, 可以获得高达150 A/W以上的光响应度。
Abstract
A novel type of photodetector structure based on graphene nanoribbons (GNR-PD) array was presented and the analytical device model was discussed in this paper. By applying the two-dimensional Poisson equation, the model of GNR-PD analytical device model was established under the weak nonlocal approximation condition. The I-V characteristics and photoresponse characteristics of GNR-PD device are derived. It is shown that due to the extra-high quantum efficiency and photoelectric gain of GNR-PD, the photo responsivity of up to 150 A/W or more can be obtained.
黄绍春, 申钧, 周红, 叶嗣荣. 基于石墨烯纳米条带阵列的光电探测器模型[J]. 半导体光电, 2017, 38(3): 334. HUANG Shaochun, SHEN Jun, ZHOU Hong, YE Sirong. Model of Photodetector Based on Graphene Nanoribbon Array[J]. Semiconductor Optoelectronics, 2017, 38(3): 334.