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Two-photon absorption properties of a novel class of triarylamine compounds

E. Piovesan, L. D. Boni, E. Ishow and C. R. Mendonça Chem. Phys. Lett., 2010, 498, 277-280

Two-photon absorption spectra of a triarylamine compounds dissolved in toluene were measured using the well-known Z-scan technique, employing 120-fs laser pulse-width. According to the results, an extra band located at around 900 nm was observed only for triarylamine with azoaromatic units. On the other hand, a shift in the two-photon absorption band for triarylamine, with and without azoaromatic units, is observed when different electron donor/acceptors groups are changed. The fitting of the spectra, using sum-over-states model, allowed us to obtain the spectroscopic parameters of each molecule, which appears to be in reasonable agreement with molecules presenting similar structural moieties.

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Paru le 3 septembre 2010

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doi:10.1016/j.cplett.2010.08.080