Plasmonically Enhanced Optical Characteristics From Europium Organometallic Complex

We demonstrated that the plasmonic effect can enhance the photoluminescence of the europium organometallic complex in conventional organic light emitting diodes stack from an anode to emissive layer with solution processing. The aggregated gold nanoparticles (A-Au NPs) were incorporated in poly(3,4-...

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Bibliographic Details
Published in:IEEE photonics technology letters 2013-12, Vol.25 (23), p.2342-2345
Main Authors: Shin, Jeong Bin, Lee, Seong Min, Kim, Myeongcheol, Kim, Donghyuk, Jeon, Duk Young, Choi, Kyung Cheol
Format: Article
Language:English
Subjects:
Europium
Gold
Ions
Nanoparticles
Organic light emitting diodes
Photoluminescence
Plasmons
rare earth metals
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Summary:We demonstrated that the plasmonic effect can enhance the photoluminescence of the europium organometallic complex in conventional organic light emitting diodes stack from an anode to emissive layer with solution processing. The aggregated gold nanoparticles (A-Au NPs) were incorporated in poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) layer to increase the luminescent quantum efficiency of the emissive layer. An enhancement of 31% was achieved in the emission intensity at 614 nm for samples with A-Au NPs. The reduced exciton lifetime measured by time-resolved photoluminescence comply with the Purcell effect. These improvements are attributed to the localized surface plasmon of A-Au NPs increasing the electric dipole transition rate from Eu 3+ ions.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2013.2285257