Table 1: The amount of adsorbed N719 dye for different TiO2 structures.

TiO2 structureDye adsorption (10−7 mol cm−2)

Film 1FTO/transparent layer5.23
Film 2FTO/transparent layer/light-scattering layer5.35
Film 3FTO/transparent layer/light-scattering layer/TiCl4 posttreatment7.02