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论文类型： 期刊论文

发表时间： 2011-07-28

发表刊物： PHYSICAL CHEMISTRY CHEMICAL PHYSICS

收录刊物： SCIE、PubMed、Scopus

卷号： 13

期号： 28

页面范围： 13026-13033

ISSN号： 1463-9076

摘要： 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.