The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2013
Filed:
Sep. 17, 2009
Huei Pei Kuo, Cupertino, CA (US);
Shih-yuan Wang, Palo Alto, CA (US);
Min HU, Sunnyvale, CA (US);
Zhiyong LI, Redwood City, CA (US);
Alexandre M. Bratkovski, Mountain View, CA (US);
Huei Pei Kuo, Cupertino, CA (US);
Shih-Yuan Wang, Palo Alto, CA (US);
Min Hu, Sunnyvale, CA (US);
Zhiyong Li, Redwood City, CA (US);
Alexandre M. Bratkovski, Mountain View, CA (US);
Other;
Abstract
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.