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Circularly Polarized Electroluminescence from Liquid-Crystalline Chiral Polyfluorenes
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2000
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Materials ScienceOrganic Charge-transfer CompoundEngineeringSemiconducting PolymerOrganic ElectronicsPolymer ScienceLiquid-crystalline Chiral PolyfluorenesConjugated PolymersConjugated PolymerLiquid CrystalsOptical Data StorageChemistryLuminescence PropertyFunctional MaterialsPolymer Chemistry
Circularly polarized electroluminescence (CPEL) has potential application in optical data storage and processing. It was recently discovered that CPEL could be generated from chiral-substituted, conjugated polymers. These authors have synthesized a range of polyfluorenes (e.g., see Figure) that form liquid crystals and emit bluish light with a significant (200 times greater than in the first report) circularly polarized component.