Efficient Green Organic Light-Emitting Diodes by Plasmonic Silver Nanoparticles

The resonance effect between the localized surface plasmon mode and the excited excitons in organic materials can enhance the optical and electrical performances of organic light-emitting diodes (OLEDs). Here, we show an enhancement in the luminescence efficiency of a green OLED by employing silver...

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Bibliographic Details
Published in:IEEE photonics technology letters 2016-02, Vol.28 (3), p.371-374
Main Authors: Shin, Jeong Bin, Baek, Se-Woong, Lee, Seong Min, Kim, Myeongcheol, Lee, Jung-Yong, Choi, Kyung Cheol
Format: Article
Language:English
Subjects:
Biomedical optical imaging
Excitons
Localized surface plasmons
Luminescence
Microcavities
Nanoparticles
Organic light emitting diodes
Plasmonics
Plasmons
silver nanoparticles
Spontaneous emission
spontaneous emission rate
Stimulated emission
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Summary:The resonance effect between the localized surface plasmon mode and the excited excitons in organic materials can enhance the optical and electrical performances of organic light-emitting diodes (OLEDs). Here, we show an enhancement in the luminescence efficiency of a green OLED by employing silver nanoparticles without an optical microcavity effect. The enhanced photoluminescence and exciton decay rate support the idea that the improved luminescence efficiency is due to the increased spontaneous emission rate of the emitter. Our results indicate that the plasmonic near-field interaction of the light-matter can be a strong engineering tool for high-efficiency organic optoelectronic devices in the display industry.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2015.2496600