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Polarized Electroluminescence from Aligned Chromophores by the Friction Transfer Method
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2000
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Materials ScienceOptical MaterialsEngineeringSemiconducting PolymerOptical PropertiesFriction Transfer MethodSurface ScienceApplied PhysicsNew Lighting TechnologyLight-emitting MaterialsConjugated PolymerThin FilmsLuminescence PropertyFriction Transfer TechniqueOptoelectronicsBiophysicsNanolithography Method
A new method for aligning light-emitting materials is reported here: The friction transfer technique was used to produce the poly(tetrafluoroethylene) surface shown in the Figure. The surface has a high density of ridges and grooves with height variations on the ten-nanometer scale, and thin films with high optical quality and controllable thickness were readily obtained. Polarized LEDs fabricated on such surfaces show high dichroic ratios.