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Proceedings Paper

Fluorescence quantum yield measurement in nanoparticle-fluorophore systems by thermal lens spectroscopy
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Paper Abstract

Metallic nanoparticles have been used as a way to tailor the fluorescence properties like quantum yield, but regular fluorescence quantum yield measurements have to counter the reflection and dispersion of a sample for an accurate result. Thermal lens spectroscopy is a good alternative to resolve this problem because doesn’t measure the fluorescence intensity but the heat generated by absorption. We studied the changes induced by silver nanoparticles, generated by laser ablation, in the fluorescence peak and quantum yield of Rhodamine B. We fund that the silver nanoparticles lowered the fluorescence peak and quenched the fluorescence of the Rhodamine B and how much is quenched also depends on its concentration.

Paper Details

Date Published: 19 April 2016
PDF: 6 pages
Proc. SPIE 9884, Nanophotonics VI, 988422 (19 April 2016); doi: 10.1117/12.2225098
Show Author Affiliations
M. Ferreira, Univ. Central de Venezuela (Venezuela)
V. Piscitelli, Univ. Central de Venezuela (Venezuela)

Published in SPIE Proceedings Vol. 9884:
Nanophotonics VI
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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