Research Article

Fast TiO2Sensitization Using the Semisquaric Acid as Anchoring Group

Figure 2

(a) UV-Visible absorbance spectra of hemi-squaraine dye in acetonitrile solution and of TiO2 photoanodes sensitized in CT1 dye for different time intervals. The values for the CT1 in acetonitrile solution refer to the right-hand axis, whereas the other curves refer to the left-hand axis. (b) IPCE action spectra of CT1-based DSCs for the same sensitization times.