I hope Raman spectroscopy will be a good tool to study the interaction of dye with TiO2 electrode,,,,,,,,in dye-sensitized solar cells u can find similar work
I see a paper about the TiO2 -MB (Methylene blne) organic dyes using IR spectroscopy. maybe help
1. Yu, Z. Q.; Chuang, S. S. C., Probing methylene blue photocatalytic degradation by adsorbed ethanol with in situ IR. J Phys Chem C 2007, 111 (37), 13813-13820.