Characterization of the Pore Filling of Solid State Dye Sensitized Solar Cells with Photoinduced Absorption Spectroscopy

Figure 3

Filling fraction versus spiro-MeOTAD concentration, calculated according (1a) and (1b), for samples with TiO₂ thicknesses of: 1.4 μm (■); 1.7 μm (●); 2 μm (▴); 3 μm (▾); 5 μm (⬠).