SERS Substrates by the Assembly of Silver Nanocubes: High-Throughput and Enhancement Reliability Considerations

Scheme 1

Illustration of the electrophoretic deposition process. (a) A patterned electrode and a counter electrode are immersed in a colloidal solution of nanoparticles. (b) An electric field is applied, causing the charged nanoparticles to deposit on one electrode. (c) The deposited nanoparticles are primarily concentrated near the patterned openings in the sacrificial insulating layer. (d) The sacrificial insulating layer is removed, leaving nanoparticles only in the patterns.