Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 13, Issue 28, Pages 13026-13033Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cp21038f
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Funding
- National Natural Science Foundation of China [20876022]
- Fundamental Research Funds for the Central University [DUT10ZD114]
- Spanish MICINN [MAT2010-20646-C04-01, TRACE2009-0144]
- Spanish CSIC
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By comparison and combination of two strategies, extending pi-conjugation and tuning Intramolecular Charge Transfer (ICT) effect, new long-wavelength BODIPY dyes have been efficiently synthesized. The new chromophores exhibit good optical properties: high fluorescence quantum yields, exceptionally large molar extinction coefficients, narrow red-emission bands, and relatively large Stokes shifts etc., in polar or apolar solvents. Besides, the new dyes, under transversal pumping at 532 nm, exhibit highly efficient and stable laser emission tunable from the green to NIR spectral region (570-725 nm). Moreover, one of these new BODIPY derivatives shows cell membrane permeability and bright intracellular red fluorescence. These advantageous characteristics assure the potential of these dyes for biophotonic applications.
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