Advanced Materials · 2002 · 205 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceOptical MaterialsOptoelectronicsSemiconductor MaterialsAmorphous MaterialsLight-emitting DiodesLuminescent MaterialsOptoelectronic DevicesOptoelectronic MaterialsOrganic SemiconductorsConcentration QuenchingExternal Quantum EfficiencyLight-emitting DevicesOrganic ElectronicsOrganic Light-emitting DiodesOrganic Light-emitting MaterialsQuantum EfficiencyRed Light-emitting Diodes
An OLED device containing a non-doped pure red light-emitting layer has been achieved. The red OLED is not only bright (∼ 8000 cd/m2) and efficient (2.4 % of external quantum efficiency) but it can also be fabricated easily without concentration-quenching problems. The Figure shows the structure of the non-doping red emitter, which is an amorphous glass molecular material with Tg ∼ 120 °C.