Fabrication of large-area self-organizing gold nanostructures on a porous Al2O3 template for application as a SERS-substrate

Research output: Contribution to conference without publisher/journalPosterResearch

Abstract

A new technique for fabrication of large-area self-organizing variably ordered gold nanostructures with sub-10 nm gaps on templates of hexagonally ordered porous anodic aluminum oxide is demonstrated. The size as well as the interparticle distance of the fabricated gold nanostructures are adjusted by application of various electrolytes used in anodization of the aluminum template and the thickness of gold sputter-coated on the pore layer. The fabricated substrates are characterized by SEM, and the applicability as SERS substrates is investigated by adsorption of rhodamine 6G on the nanostructures. These substrates are found to exhibit high and uniform enhancement of the Raman signal across the entire surface. The nanostructures can be utilized as low-cost SERS-active substrates that within a short time can be fabricated reproducibly in large amounts.
Original languageEnglish
Publication date2009
Publication statusPublished - 2009
Event3rd International Workshop on Smart Materials & Structures - Kiel, Germany
Duration: 19. Aug 200921. Aug 2009

Conference

Conference3rd International Workshop on Smart Materials & Structures
Country/TerritoryGermany
CityKiel
Period19/08/200921/08/2009

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