4.3 Article

A new SERS-active sandwich structure

期刊

JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷 11, 期 2, 页码 150-154

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SPRINGER
DOI: 10.1007/s10008-006-0214-z

关键词

surface-enhanced Raman scattering; porous carbon electrodes; activated carbon; electrochemical double-layer capacitors

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We report surface-enhanced Raman scattering (SERS) from a sandwich structure of two silver layers, in which a thin film of activated carbon is embedded. The first silver layer is prepared by electroless deposition on a non-conductive substrate, while the second one is electrodeposited on the adsorbed carbon powder. This sandwich does not only yield stable SERS signals from the carbon but also a strong additional enhancement (compared to SERS from simple carbon/silver or silver/carbon structures), stemming from a coupling of the two silver layers. The sandwich structure should be widely applicable since its preparation is very simple.

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