Molecular Engineering of Fluorene-Based Photosensitizers for Dye-Sensitized Solar Cells

E-mail: dhkim@kunsan.ac.krReceived December 17, 2012, Accepted February 7, 2013Key Words : Organic dye, Chenodeoxycholic acid, DSSC, Absorption spectra, Density functional theoryFluorenes are very attractive as π-conjugated spacers indye-sensitized solar cells (DSSCs) due to its higher molarextinction coefficients and more red-shifted spectra as com-pared to biphenyl moieties.