Near infrared squaraine dyes are promising candidates for organic solar cell development and useful in bioimaging applications. Two photon fluorescence microscopy (2PFM) imaging is a powerful tool being used for studying biological function since it produces 3D images with less damage to cells and lower fluorophore photobleaching. The fluorescence wavelength of squaraine dyes normally falls in the near infrared region, providing deeper penetration through biological samples such as thick tissue sections and the ability of converting sunlight to generate electricity more efficiently. A squaraine dye that could work for solar cells and for imaging cells and tissue for 2PFM imaging was synthesized and was comprehensively characterized photophysically.  Its electrochemical characterization was also conducted. In addition, the dye can be incorporated in silica nanoparticles or micelles to facilitate dispersal in water, since it is not water soluble, for evaluation for use in the bioimaging applications.

Squaraine dyes for photovoltaic and bioimaging applications

243rd National Meeting (2012)

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