Title

Photophysical Characterization, Two-Photon Absorption And Optical Power Limiting Of Two Fluorenylperylene Diimides

Abstract

Perylene diimides have unique optical and electronic properties and have attracted interest in fields ranging from nonlinear optics to photovoltaics. The steady-state linear photophysical properties, two-photon absorption (2PA) spectra, and optical limiting behavior of fluorenylperylene diimide-based derivatives were investigated in solution at room temperature. An efficient intramolecular energy transfer and specific strong dependences of fluorescence quantum yield on solvent properties were observed. The 2PA spectra were measured over a broad spectral region by two-photon induced fluorescence and open aperture Z-scan methods under femtosecond and picosecond excitation, respectively. The maximum values of pure 2PA cross sections, up to ∼3500 GM, were obtained for fluorenylperylene diimide-based derivatives under picosecond excitation, when excited-state absorption and stimulated emission processes were taken into account. These perylene derivatives exhibited efficient two-photon optical power limiting under picosecond excitation. © 2008 American Chemical Society.

Publication Date

4-10-2008

Publication Title

Journal of Physical Chemistry C

Volume

112

Issue

14

Number of Pages

5618-5622

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/jp711950z

Socpus ID

47149114957 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/47149114957

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