Organic Letters · 2004 · 160 citations · 4 references
Natural SciencesChemistryMaterials ScienceOptical MaterialsOptoelectronicsOrganic ChemistryLight-emitting DiodesLuminescent MaterialsOptoelectronic MaterialsOrganic Electronic MaterialsOrganic SemiconductorsPhotochemistryDoping BehaviorLight-emitting DevicesLuminanceOrganic FluorophoresOrganic Light-emitting DiodesOrganic Light-emitting MaterialsSteric BulkThermal Properties
We have synthesized a new green fluorescent dopant C-545P having incorporated five strategically placed "methyl" steric spacers on the julolidyl ring system. C-545P has good thermal properties and photostability, and when fabricated as a dopant in an Alq(3)-hosted OLED device, it shows notable improvement in luminance efficiency and is more resistant to concentration quenching than C-545T, particularly in the doping concentration range between 1 and 2% v/v, while achieving comparable device stability. [structure: see text]
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