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Surface plasmon-enhanced electroluminescence in organic light-emitting diodes incorporating Au nanoparticles
Authors
PP Cheng
YH Deng
+7 more
ST Lee
YQ Li
JX Tang
Y Xiao
ZQ Xu
JP Yang
JJ Zhu
Publication date
2 January 2012
Publisher
'AIP Publishing'
Doi
Cite
Abstract
Surface plasmon-enhanced electroluminescence (EL) in an organic light-emitting diode is demonstrated by incorporating the synthesized Au nanoparticles (NPs) in the hole injection layer of poly(3,4-ethylene dioxythiophene):polystyrene sulfonic acid. An increase of ∼25% in the EL intensity and efficiency are achieved for devices with Au NPs, whereas the spectral and electrical properties remain almost identical to the control device. Time-resolved photoluminescence spectroscopy reveals that the EL enhancement is ascribed to the increase in spontaneous emission rate due to the plasmonic near-field effect induced by Au NPs. © 2012 American Institute of Physics
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Last time updated on 18/10/2019