Applied Physics Letters · 2009 · 10 citations · 16 references
Natural SciencesChemistryMaterials ScienceOptical MaterialsOrganic ChemistryPhotonicsLight-emitting DiodesLuminescent MaterialsOptoelectronic MaterialsOrganic Electronic MaterialsOrganic SemiconductorsPhotochemistryCurrent EfficiencyEnergy TransferEnergy Transfer In Luminescent MaterialsExcitonsExternal Quantum EfficiencyFluorescent DyesOrganic Light-emitting DiodesQuantum Efficiency
We report on the development of highly efficient organic light-emitting diodes (OLEDs) utilized by balancing the energy transfer between multiple dopants, that is, multiple emissions from the multiple dopants were realized by balanced distributed energy transfer. From the cosensitizing fluorescent OLEDs, the peak external quantum efficiency (EQE) of 4.8% at 130 cd/m2 is demonstrated, which realized theoretical limits of ∼5.0% and means that nearly 100% of the singlet excitons are radiative. Also, the optimized device accompanying thickness-modulated electron transport layer for the enhanced light outcoupling demonstrated the highly improved peak EQE and current efficiency of 6.7%, and 23.4 cd/A.
16
Organic electroluminescent diodes
Chak Wah Tang, S. A. VanSlyke · Applied Physics Letters · 1987 · 14.3K citations
Natural Sciences, Materials Engineering, Materials Science +17
Management of singlet and triplet excitons for efficient white organic light-emitting devices
Yiru Sun, Noel C. Giebink, Hiroshi Kanno et al. · Nature · 2006 · 2.3K citations · Full text