Patent ID: 8867032
Filing Date: 2014-10-21
Classification: B22F,B82Y,G01N,Y10S,Y10T

Abstract:
1. A substrate for surface enhanced optical detection, the substrate comprising: an electrically conductive layer; at least one nanoparticle comprising an electrically conductive portion; and a dielectric spacer for spacing the electrically conductive layer from the at least one nanoparticle, wherein the dielectric spacer is a dielectric material substantially only present under the at least one nanoparticle, leaving the electrically conductive layer uncovered from dielectric material at positions away from the at least one nanoparticle, wherein the at least one nanoparticle and the dielectric spacer are interfaced along a first major surface and wherein the at least one nanoparticle comprises an upstanding surface not in line with an upstanding surface of the dielectric spacer, and wherein the electrically conductive layer is partially patterned, such that the electrically conductive layer comprises a to part that is only locally present under the dielectric spacer and a bottom part that is a continuous film.