Engineering the sign of circularly polarized emission in achiral polymer – chiral small molecule blends as a function of blend ratio
Li Wan, Jessica Wade, Xuhua Wang, Alasdair J. Campbell, Matthew J. Fuchter
Abstract
We demonstrate CP-OLEDs with an impressive electroluminescence dissymmetry factor ( g EL ) > 0.3. The handedness of circularly polarized PL/EL can be inverted by varying the active layer thickness and chiral additive loading ratio.
Topics & Concepts
Materials scienceElectroluminescenceSign (mathematics)Active layerPolymerCircular polarizationPolymer blendCircular dichroismMoleculeLayer (electronics)Small moleculeOptoelectronicsPolymer chemistryOpticsComposite materialCrystallographyOrganic chemistryPhysicsCopolymerChemistryMathematicsThin-film transistorMathematical analysisBiochemistryMicrostripSynthesis and Properties of Aromatic CompoundsOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials