Fabrication of sensitive graphene oxide decorated silver nanodendrites as SERS substrate

We present fabrication of a low-cost surface enhanced Raman scattering (SERS) substrate. A composite graphene oxide (GO) decorated Ag nanodendrites (AgNDs) on the copper substrate has been prepared using a simple galvanic replacement of silver nitrate solution over copper foil and further spin coati...

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Bibliographic Details
Main Authors: Garg, Preeti, Soni, R. K., Raman, R.
Format: Conference Proceeding
Language:English
Subjects:
Copper
Graphene
Metal foils
Methylene blue
Oxidation
Raman spectra
Silver
Spin coating
Substrates
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Summary:We present fabrication of a low-cost surface enhanced Raman scattering (SERS) substrate. A composite graphene oxide (GO) decorated Ag nanodendrites (AgNDs) on the copper substrate has been prepared using a simple galvanic replacement of silver nitrate solution over copper foil and further spin coating it with GO. Graphene oxide serves as a protecting thin layer, avoiding the oxidation of AgNDs for highly sensitive and stable SERS applications. The sensitive SERS detection of Methylene blue (MB) is achieved as low as 10−7 M on rGO/AgNDs and 10−6 M on bare AgNDs.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0001682