cis-di(thiocyanato)bis(2, 2′ -bipyridyl- 4, 4″ -dicarboxylate)rutheniumu(II) (N719) adsorption on anatase Ti O2 electrodes in dye-sensitized solar cells has been investigated using infrared absorption spectroscopy with a multiple internal reflection technique. We have found that the N719 dye dissociatively adsorbs on OH sites to the Ti O2 surfaces with its carboxy group. The intentional generation of the OH sites on the Ti O2 electrodes with a photocatalytic reaction by UV irradiation in air prior to the N719 dye adsorption is effective in increasing the short-circuit current of the dye-sensitized solar cells.
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Science(all)
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering