Complexation of a hemicyanine-based amphiphile at the air−water interface by polyelectrolytes introduced in the aqueous subphase is shown to be a convenient and effective route to achieve complete deaggregation of the dye chromophores in the Langmuir−Blodgett (LB) film without reducing the chromophore density in the two-dimensional lattice. Enhanced optical second harmonic generation from the LB films of the hemicyanine−polyelectrolyte is demonstrated.
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Chandra et al. (2003) studied this question.