金(Au)/钯(Pd)复合膜表面等离子共振氢敏传感器基因优化  

Optimization of an Optical Hydrogen Sensing Structure by Genetic Algorithms Based on Au/Pd-Coated Utilizing Surface Plasmon Resonance

作　　者：吕卓[1] 胡建东[1] 

机构地区：[1]浙江大学现代光学仪器国家重点实验室,光及电磁波研究中心,杭州310027

出　　处：《传感技术学报》2006年第1期53-56,共4页Chinese Journal of Sensors and Actuators

摘　　要：提出了一种新颖的基于波长调制的Au/Pd复合膜SPR氢敏传感器结构,采用遗传基因算法对Au/Pd复合膜氢敏传感器的灵敏度进行了数值计算和优化,优化结果表明Au(2nm)/Pd(27nm)结构的复合膜氢敏传感器可获得最佳的灵敏度,与通常使用的单一纯Pd(20nm)膜氢敏传感器相比,不仅氢敏传感器的敏感膜的稳定性得到改善,而且灵敏度也提高了近3倍。A novel sensor structure consisting of a combined Pd and Au thin film has been investigated for optical sensing of hydrogen. Combined Au/Pd hydrogen structure was simulated and optimized by genetic algorithms. Our optimization indicates that the optimal layer configuration for SPR hydrogen sensors should be Au（2 nm）/Pd（27 nm） for achieving best performance. Compared to a traditional singular Pd thin film hydrogen sensor, the sensitivity of the new structure is three times as much as that. It exhibits a very high response value and stability too.

关 键 词：表面等离子共振 基因算法 氢敏感 Pd/Au复合膜 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]