Abstract

We have experimentally verified that the emission of visible light from dye doped polymers can be enhanced with the use of surface plasmon coupling. By matching the plasmon frequency of a thin unpatterned silver film to the emission of a dye doped polymer deposited onto this metal surface, we have observed a eleven-fold enhancement of light emission. By patterning the silver layer, we estimate that the plasmon frequency can be tuned to match dye doped polymer emission frequencies and even larger emission enhancements as well as extraction efficiencies are expected.

© 2005 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef]
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Advanced Materials (1)

Hobson, P.A., et al., "Surface plasmon mediated emission from organic light-emitting diodes," Advanced Materials 14, 1393-1396 (2002).
[CrossRef]

Appl. Phys. Lett. (2)

Hecker, N.E., et al., "Surface plasmon-enhanced photoluminescence from a single quantum well," Appl. Phys. Lett. 75, 1577-1579 (1999).
[CrossRef]

Jiang, X.Z., et al., "Organic light-emitting diodes using an in situ thermally polymerized hole transporting layer," Appl. Phys. Lett. 76, 2985-2987 (2000).
[CrossRef]

IEEE J. Quantum Electron. (1)

Vuckovic, J., M. Loncar, and A. Scherer, "Surface plasmon enhanced light-emitting diode," IEEE J. Quantum Electron. 36, 1131-1144 (2000).
[CrossRef]

J. Am. Chem. Soc. (1)

Carlson, B., et al., "Divalent osmium complexes: Synthesis, characterization, strong red phosphorescence, and electrophosphorescence," J. Am. Chem. Soc. 124, 14162-14172 (2002).
[CrossRef] [PubMed]

J. Appl. Polymer Sci. (1)

Uznanski, P. and J. Pecherz, "Surface plasmon resonance of azobenzene-incorporated polyelectrolyte thin films as an H+ indicator," J. Appl. Polymer Sci. 86, 1459-1464 (2002).
[CrossRef]

J. Biomol. Screening (1)

Malicka, J., et al., "Use of surface plasmon-coupled emission to measure DNA hybridization," J. Biomol. Screening, 9, 208-215 (2004).
[CrossRef]

J. Opt. Soc. Am. B (1)

Macromol. (1)

Tawa, K. and W. Knoll, "Out-of-plane photoreorientation of azo dyes in polymer thin films studied by surface plasmon resonance spectroscopy," Macromol. 35, 7018-7023 (2002).
[CrossRef]

Nature Materials (1)

Okamoto, K., et al., "Surface-plasmon-enhanced light emitters based on InGaN quantum wells," Nature Materials 3, 601-605 (2004).
[CrossRef] [PubMed]

Opt. Lett. (1)

Phys. Rev. B (2)

Gontijo, I., et al., "Coupling of InGaN quantum-well photoluminescence to silver surface plasmons," Phys. Rev. B, 60, 11564-11567 (1999).
[CrossRef]

Neogi, A., et al., "Enhancement of spontaneous recombination rate in a quantum well by resonant surface plasmon coupling," Phys. Rev. B 66 (2002).
[CrossRef]

Science (1)

Andrew, P. and W.L. Barnes, "Energy transfer across a metal film mediated by surface plasmon polaritons," Science 306, 1002-1005 (2004).
[CrossRef] [PubMed]

Other (1)

Carper, J., The CRC Handbook of Chemistry and Physics. Library J. 124, 192-+ (1999).

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Figures (4)

Fig. 1.
Fig. 1.

Sample structure with both pump light and emission light configurations.

Fig. 2.
Fig. 2.

PL spectra of Coumarin 460 on Ag, Au, and on no metal. Coumarin 460 PL spectra on no metal was normalized to 1.

Fig. 3.
Fig. 3.

PL Enhancement ratios demonstrating an increase of enhancement with shorter wavelengths using the silver film. Green dotted line is for gold whereas the red solid line is for silver.

Fig. 4.
Fig. 4.

Dispersion diagrams of surface plasmons generated on Ag/PMMA red solid line and Au/PMMA green dotted line.

Equations (2)

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k = ω c ε 1 ε 2 ε 1 + ε 2
Z = λ 2 π ε 2 ε 1 ε 1 2

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