Abstract
The Langmuir–Blodgett (LB) films built from the mixture of an amphiphilic push–pull ferrocene derivative ( P) and behenic acid were investigated. Langmuir films of P diluted by behenic acid exhibit a very good cohesion and the mixed films can easily be transferred onto solid substrates. Linear dichroism UV-visible and IR spectroscopy measurements of the mixed LB multilayers confirm that the molecules ( P) are oriented to the substrate. The nonlinear optical experiments on the mixed monolayer deposited on the CaF 2 slide showed that P displayed efficient optical second harmonic generation (SHG) with a molecular hyperpolarizability ( β) as high as 6.0×10 -29 e.s.u.
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