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Amplification of the Signal of Surface- Enhanced Raman Scattering from a Monolayer of Organic Molecules in Sandwich Structures Based on Plasmonic Silver Nanoplates
Abstract
A novel technique was developed for fabrication of bilayer sandwich-type structures based on monolayers of laterally oriented silver nanoplates electrostatically deposited onto thin polymer films. We demonstrate a linear dependence of surface-enhanced Raman scattering (SERS) signal of 4-mercaptobenzoic acid ligand layer on surface concentration of deposited silver nanoplates in monolayer. We show the twofold enhancement of surface-enhanced Raman scattering signal of analyte, which is placed in the gaps between silver nanoplates monolayers in bilayer sandwich structures, comparing to the signal from a single silver nanoplates monolayer, with identical surface concentration of analyte molecules.
Keywords
surface-enhanced Raman scattering,
colloidal silver nanoplates,
electrostatic deposition,
sandwich-type structure
Supporting agencies: The work was carried out with the financial support of the Belarusian Republican Foundation for Basic Research within the framework of the X22M-051 project and partial financing within the framework of the assignment 2.1.04.01 GPNI “Chemical processes, reagents and technologies, bioregulators and bioorgchemistry”
About the Authors
P. O. Malakhovsky
Research Institute for Physical Chemical Problems of the Belarusian State University
Belarus
Belarus
Minsk
А. А. Ramanenka
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
M. V. Artemyev
Research Institute for Physical Chemical Problems of the Belarusian State University
Belarus
Belarus
Minsk
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Review
For citations:
Malakhovsky P.O., Ramanenka А.А., Artemyev M.V. Amplification of the Signal of Surface- Enhanced Raman Scattering from a Monolayer of Organic Molecules in Sandwich Structures Based on Plasmonic Silver Nanoplates. Zhurnal Prikladnoii Spektroskopii. 2024;91(5):675-681. (In Russ.)
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