Effect of TiO₂ Photoanode Porosity on Dye Diffusion Kinetics and Performance of Standard Dye-Sensitized Solar Cells

Figure 3

Normalized and raw data (insert) absorbance at λ = 540 nm of real time diffuse reflectance UV-Vis spectroscopic measurements of TiO₂ films immersed in a 3 mM ethanolic N719 dye solution. The red symbols correspond to the first absorbance value collected after introduction of the dye solution.