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Second-harmonic generation as a probe of rotational mobility in poled polymers
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1991
Year
EngineeringDopant Molecular VolumeSoft MatterPolymersPolymer MaterialPoled PolymersPolymer PhysicPolymer ChemistryMaterials SciencePhysicsPhysical ChemistrySecond-harmonic GenerationPolymer MeltPolymer SolutionPolymer ScienceApplied PhysicsRotational MobilityPolymer PropertyPolymer Modeling
Second-harmonic generation was used to determine the rotational mobility of dopants in polymer hosts aligned by an electric field as a function of temperature and of dopant molecular volume. A free-volume model is used to interpret the results and to estimate the average free volume surrounding the dopants.