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.
| Original language | English |
|---|---|
| Article number | 013308 |
| Journal | Applied Physics Letters |
| Volume | 100 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2 Jan 2012 |
| Externally published | Yes |