Enhanced emission of Nile Red on plasmonic platforms

Strongly enhanced fluorescence of Nile Red deposited in the vicinity of silver nanoparticles and gold semitransparent mirror was observed. The properties of three different plasmonic platforms based on TiO2, TiO2-GLYMO (1:1) and SiO2 matrices were studied with spectroscopic and microscopic technique...

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Bibliographic Details
Published in:Optical materials 2018-04, Vol.78, p.82-87
Main Authors: Synak, Anna, Bojarski, Piotr, Grobelna, Beata, Gryczyński, Ignacy, Fudala, Rafał, Mońka, Michal
Format: Article
Language:English
Subjects:
Enhanced fluorescence
Nile Red
Plasmonic platform
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Summary:Strongly enhanced fluorescence of Nile Red deposited in the vicinity of silver nanoparticles and gold semitransparent mirror was observed. The properties of three different plasmonic platforms based on TiO2, TiO2-GLYMO (1:1) and SiO2 matrices were studied with spectroscopic and microscopic techniques. Significant differences of Nile Red spectroscopic properties in both matrices were observed. In particular, the sensitivity of Nile Red fluorescence enhancement and its peak location to the polarity of local surrounding was found. [Display omitted] •New plasmonic platforms with Nile Red are successfully constructed.•Fluorescence enhancement depends on nanoparticle size and matrix type.•Nile Red is solvatochromically sensitive to the host medium.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2018.02.009