摘要
为了改善表面等离子共振(SPR)传感器的性能,利用传输矩阵法就化学势对一种石墨烯基SPR传感器特性的影响进行了研究。研究结果表明:器件结构参数一定时,化学势发生变化,传感器的探测灵敏度也随之发生变化。传感器的结构参数对器件性能的影响与化学势的取值是相关联的。基于这种关联性,对这种SPR传感器的结构参数进行了重新选择,使器件的探测灵敏度提高了约20.4%。研究结果为类似石墨烯基SPR传感器的优化设计提供了参考。
In order to improve sensing performance of surface plasmon resonance(SPR)sensor,the influence of chemical potential on sensing characteristics of a graphene-based SPR sensor is studied by transmission matrix method.Research results show that detecting sensitivity of the sensor changes with the variation of chemical potential when the structure parameters of the device are fixed.The influence of the structure parameters of the sensor on the performance of the device is related to the value of the chemical potential.Based on this relevance,the structural parameters of the SPR sensor are re-selected,and the sensitivity of the device is improved by about 20.4%.The research results provide a reference for the optimal design of similar graphene-based SPR sensors.
作者
王超琪
李科进
吕琦
傅尧
殷彦菲
武继江
WANG Chaoqi;LI Kejin;L Qi;FU Yao;YIN Yanfei;WU Jijiang(School of Physics and Optoelectronic Engineering,Shandong University of Technology,Zibo 255000,China)
出处
《传感器与微系统》
CSCD
北大核心
2021年第8期35-37,41,共4页
Transducer and Microsystem Technologies
基金
淄博市校城融合发展计划资助项目(2018ZBXC052)
国家级大学生创新创业训练计划项目(201910433001,201910433012)。
关键词
表面等离子共振(SPR)
石墨烯
化学势
灵敏度
传输矩阵法
surface plasmon resonance(SPR)
graphene
chemical potential
sensitivity
transmission matrix method