Enhancement of Fluorescence and Raman Scattering in Cyanine-Dye Molecules on the Surface of Silicon-Coated Silver Nanoparticles

A method of formation of a composite structure based on silver nanoparticles and a thin protective silicon film (Ag NPs /Si) is developed. Enhancement of the fluorescence and Raman scattering in cyaninedye molecules deposited onto the formed nanostructure is observed. The optical properties and morp...

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Bibliographic Details
Published in:Optics and spectroscopy 2018-03, Vol.124 (3), p.319-322
Main Authors: Kamalieva, A. N., Toropov, N. A., Bogdanov, K. V., Vartanyan, T. A.
Format: Article
Language:English
Subjects:
Composite structures
Condensed-Matter Spectroscopy
Dyes
FLUORESCENCE
Lasers
MOLECULES
NANOPARTICLES
NANOSCIENCE AND NANOTECHNOLOGY
NANOSTRUCTURES
Optical Devices
OPTICAL PROPERTIES
Optics
Photonics
Physics
Physics and Astronomy
Protective coatings
RAMAN EFFECT
Raman spectra
SILICON
Silicon films
SILVER
SURFACES
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Summary:A method of formation of a composite structure based on silver nanoparticles and a thin protective silicon film (Ag NPs /Si) is developed. Enhancement of the fluorescence and Raman scattering in cyaninedye molecules deposited onto the formed nanostructure is observed. The optical properties and morphology stability of particles that are in contact with cyanine-dye solutions in organic solvents are studied. It is shown that the Ag NPs /Si composite structure can be multiply used as an SERS-active surface.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X18030153