Effects of Silver Island Films on the Luminescent Intensity and Decay Times of Lanthanide Chelates

Joseph R. Lakowicz; Badri P. Maliwal; Joanna Malicka; Zygmunt Gryczynski; Ignacy Gryczynski

doi:10.1023/A:1021318127519

Effects of Silver Island Films on the Luminescent Intensity and Decay Times of Lanthanide Chelates

Joseph R. Lakowicz, Badri P. Maliwal, Joanna Malicka, Zygmunt Gryczynski, Ignacy Gryczynski

Microbiology, Immunology & Genetics

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

We examined the emission intensity and decay times of chelates Tb ³⁺ and Eu ³⁺ in micron thick samples between films of sub-wavelength size silver particles. We observed modest increases in emission intensities for the complexes between the silver particles as compared to between unsilvered quartz plates. The intensity decay times were dramatically decreased by the silver particles, which was in part mediated by diffusion toward the silver particles. These results indicated that luminescent lanthanides in close proximity to silver particles display increased rates of radiative decay. The use of luminophore-metallic surface interactions provides new opportunities for creation of luminescent probes with novel spectral properties.

Original language	English
Pages (from-to)	431-437
Number of pages	7
Journal	Journal of Fluorescence
Volume	12
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1021318127519
State	Published - Dec 2002

Keywords

Colloids
Lanthanides
Luminescence
Metal-enhanced fluorescence
Silver islands

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title = "Effects of Silver Island Films on the Luminescent Intensity and Decay Times of Lanthanide Chelates",

abstract = "We examined the emission intensity and decay times of chelates Tb 3+ and Eu 3+ in micron thick samples between films of sub-wavelength size silver particles. We observed modest increases in emission intensities for the complexes between the silver particles as compared to between unsilvered quartz plates. The intensity decay times were dramatically decreased by the silver particles, which was in part mediated by diffusion toward the silver particles. These results indicated that luminescent lanthanides in close proximity to silver particles display increased rates of radiative decay. The use of luminophore-metallic surface interactions provides new opportunities for creation of luminescent probes with novel spectral properties.",

keywords = "Colloids, Lanthanides, Luminescence, Metal-enhanced fluorescence, Silver islands",

author = "Lakowicz, {Joseph R.} and Maliwal, {Badri P.} and Joanna Malicka and Zygmunt Gryczynski and Ignacy Gryczynski",

note = "Funding Information: This work was supported by the NIH, National Center for Research Resources, RR-08119.",

year = "2002",

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doi = "10.1023/A:1021318127519",

language = "English",

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T1 - Effects of Silver Island Films on the Luminescent Intensity and Decay Times of Lanthanide Chelates

AU - Lakowicz, Joseph R.

AU - Maliwal, Badri P.

AU - Malicka, Joanna

AU - Gryczynski, Zygmunt

AU - Gryczynski, Ignacy

N1 - Funding Information: This work was supported by the NIH, National Center for Research Resources, RR-08119.

PY - 2002/12

Y1 - 2002/12

N2 - We examined the emission intensity and decay times of chelates Tb 3+ and Eu 3+ in micron thick samples between films of sub-wavelength size silver particles. We observed modest increases in emission intensities for the complexes between the silver particles as compared to between unsilvered quartz plates. The intensity decay times were dramatically decreased by the silver particles, which was in part mediated by diffusion toward the silver particles. These results indicated that luminescent lanthanides in close proximity to silver particles display increased rates of radiative decay. The use of luminophore-metallic surface interactions provides new opportunities for creation of luminescent probes with novel spectral properties.

AB - We examined the emission intensity and decay times of chelates Tb 3+ and Eu 3+ in micron thick samples between films of sub-wavelength size silver particles. We observed modest increases in emission intensities for the complexes between the silver particles as compared to between unsilvered quartz plates. The intensity decay times were dramatically decreased by the silver particles, which was in part mediated by diffusion toward the silver particles. These results indicated that luminescent lanthanides in close proximity to silver particles display increased rates of radiative decay. The use of luminophore-metallic surface interactions provides new opportunities for creation of luminescent probes with novel spectral properties.

KW - Colloids

KW - Lanthanides

KW - Luminescence

KW - Metal-enhanced fluorescence

KW - Silver islands

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JO - Journal of Fluorescence

JF - Journal of Fluorescence

IS - 3-4

ER -

Effects of Silver Island Films on the Luminescent Intensity and Decay Times of Lanthanide Chelates

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