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Issue 28, 2010
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Red-edge-wavelength finely-tunable laser action from new BODIPY dyes

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New BODIPY dyes with two 4-formylphenyl, 4-(2,2-dimethoxycarbonylvinyl)phenyl and 4-(2,2-dicyanovinyl)phenyl groups at the 3- and 5-positions have been successfully designed and synthesized via palladium-catalyzed coupling reaction or Knoevenagel-type condensations. Structural modification of the BODIPY core via conjugation-extending residues significantly affects the spectroscopy and photophysical properties of the BODIPY fluorophore. These substituents cause the largest bathochromic shift in both absorption and emission spectra, which are shifted toward the red compared to its 4-phenylsubstituted analogue. Additionally, the fluorescence quantum yields and the Stokes shifts are also significantly higher than the corresponding phenyl-substituted dye. New BODIPY dyes have a high laser photostability, superior to that of commercial dyes with laser emission in the same spectral region, such as Perylene Red and Rhodamine 640. The substitution introduced in these derivatives allows to obtain tunable laser emission with a bandwidth of 0.15 cm−1 and a tuning range of up to 50 nm. So with these three dyes it is possible to cover the spectral range 590–680 nm in a continuous way and with stable laser emission and small linewidth.

Graphical abstract: Red-edge-wavelength finely-tunable laser action from new BODIPY dyes

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The article was received on 04 Dec 2009, accepted on 24 Mar 2010 and first published on 25 May 2010

Article type: Paper
DOI: 10.1039/B925561C
Citation: Phys. Chem. Chem. Phys., 2010,12, 7804-7811
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    Red-edge-wavelength finely-tunable laser action from new BODIPY dyes

    M. J. Ortiz, I. Garcia-Moreno, A. R. Agarrabeitia, G. Duran-Sampedro, A. Costela, R. Sastre, F. López Arbeloa, J. Bañuelos Prieto and I. López Arbeloa, Phys. Chem. Chem. Phys., 2010, 12, 7804
    DOI: 10.1039/B925561C

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