发明授权
US08559003B2 Electrically driven devices for surface enhanced raman spectroscopy
有权
用于表面增强拉曼光谱的电驱动装置
- 专利标题: Electrically driven devices for surface enhanced raman spectroscopy
- 专利标题(中): 用于表面增强拉曼光谱的电驱动装置
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申请号: US13384456申请日: 2009-09-17
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公开(公告)号: US08559003B2公开(公告)日: 2013-10-15
- 发明人: Huei Pei Kuo , Shih-Yuan Wang , Min Hu , Zhiyong Li , Alexandre M. Bratkovski
- 申请人: Huei Pei Kuo , Shih-Yuan Wang , Min Hu , Zhiyong Li , Alexandre M. Bratkovski
- 国际申请: PCT/US2009/057327 WO 20090917
- 国际公布: WO2011/034533 WO 20110324
- 主分类号: G01J3/44
- IPC分类号: G01J3/44
摘要:
An electrically driven device for surface enhanced Raman spectroscopy includes a first electrode, a substrate positioned proximate to the first electrode, a plurality of cone shaped protrusions formed integrally with or on a substrate surface, a Raman signal-enhancing material coated on each protrusion, and a second electrode positioned relative to the first electrode at a predetermined distance. Each of the protrusions has a tip with a radius of curvature ranging from about 0.1 nm to about 100 nm. The second electrode is positioned relative to the first electrode such that the electrodes together produce an electric field when a voltage bias is applied therebetween. The electric field has a field distribution that creates a stronger field gradient at a region proximate to the tips than at other portions of the substrate.