Physical Review Letters · 2003 · 61 citations · 22 references
Natural SciencesChemistryMaterials ScienceElectronic MaterialsOptical MaterialsOptoelectronicsConducting PolymersFluorescence SpectroscopyLuminescent MaterialsOrganic Electronic MaterialsOrganic SemiconductorsPolymer Thin FilmsDelayed LuminescenceElectroluminescenceIntrinsic FluorescenceLow-temperature MaterialsLuminescent PolymersPolymer Semiconductor DevicesTriplet Exciton DynamicsTriplet-state Dynamics
Intrinsic long-lived electrophosphorescence and delayed electroluminescence from a conjugated polymer (polyfluorene) thin film is observed for the first time at low temperature. From bias offset voltage dependent measurements, it is concluded that the delayed fluorescence is generated via triplet-triplet annihilation. A fast and efficient triplet exciton quenching by charge carriers is found to occur in the active polymer layer of the working devices.
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Light-emitting diodes based on conjugated polymers
J. H. Burroughes, Donal D. C. Bradley, Adam R. Brown et al. · Nature · 1990 · 11.4K citations
Natural Sciences, Materials Engineering, Materials Science +12
Improved energy transfer in electrophosphorescent devices
D. F. O’Brien, Marc A. Baldo, Mark E. Thompson et al. · Applied Physics Letters · 1999 · 695 citations